Olefin polymerization catalyst and manufacturing process and use thereof

Abstract

Olefin coordination polymerization catalyst, wherein the catalyst consists of a primary catalyst mainly composed of a magnesium compound, a transition metal halide, a C 2-15 -alcohol and an electron donor in a molar ratio of 1:13-35:0.3-8.5:0.45-1.7, and a co-catalyst which is an organoaluminium compound, where the molar ratio of the transition metal halide to the co-catalyst is 1:10-500, wherein the electron donor is a four-armed organoheteroether compound, and the four-armed organoheteroether compound is selected from at least one of the following compounds wherein the magnesium compound is selected from magnesium dichloride or magnesium diethoxide and the transition metal halide is selected from titanium tetrachloride.

Description

field of technology

[0001] This invention relates to a catalyst for olefin homo- or copolymerization and a manufacturing process and an application thereof, and relates to the technical field of a highly efficient olefin polymerization catalyst and olefin polymerization. background

[0002] Olefin polymerization catalysts are at the heart of polyolefin polymerization technology. Regarding the development of olefin polymerization catalysts, there are generally two main aspects: (1) the development of polyolefin resin catalysts capable of producing special or excellent properties, such as metallocene catalysts and non-metallocene transition metal catalysts; (2) the simplification of the catalyst manufacturing process, reduction of catalyst costs, and the development of an environmentally friendly technology based on further improving catalyst performance, enhancing its advantages and competitiveness, for the production of general-purpose polyolefin resin. Prior to the 1980s, research on polyethylene catalysts focused primarily on catalyst efficiency.After about 30 years of effort, the catalytic efficiency of polyethylene catalysts has increased by orders of magnitude, simplifying the production process of polyolefins and reducing energy consumption and material consumption.

[0003] Approximately 60 years have passed since the development of Ziegler-Natta catalysts. Although polyolefin catalysts such as metallocene and non-metallocene catalysts have been developed during this period, many industrialization challenges remain, including the high cost of co-catalysts and difficulties with primary catalyst loading. In terms of current industrial production and market share, the traditional ZN catalyst will remain the dominant player in olefin polymerization for some time. While ZN catalyst products have been continuously developed both domestically and internationally in recent years, catalyst stability and catalytic polymerization activity have also steadily improved, they still have shortcomings regarding hydrogen response, control of catalyst particle regularity, and particle size distribution.Currently, it is desirable to specify a spherical or spheroidal catalyst with a simple manufacturing process, a good hydrogen response, and a uniform particle size distribution.

[0004] Chinese patent 96106647.4 discloses an olefin polymerization catalyst and a manufacturing process therefor, wherein the support MgCl2 is dissolved in a mixture of an alcohol and an alkane, forming a liquid MgCl2 alcohol adduct, and this liquid MgCl2 alcohol adduct is contacted with TiCl4, obtaining an olefin polymerization catalyst, but the catalyst has a poor hydrogen response, and the melt flow rate MFR of the polyethylene can only be adjusted in the range of 0.1 g / 10 min to 220 g / 10 min.

[0005] Chinese patent 20048000824.X discloses an olefin polymerization catalyst and a manufacturing process thereof, wherein the support MgCl2 is dissolved directly in ethanol to produce a solid MgCl2 alcohol adduct, and then TiCl4 is carried on the solid MgCl2 alcohol adduct, obtaining the olefin polymerization catalyst.

[0006] Chinese patent 201110382706.5 discloses an olefin polymerization catalyst and a manufacturing process therefor, wherein the support MgCl2 is dissolved in an organic solvent consisting of isoctanol and ethanol to produce a solid MgCl2 alcohol adduct, and then TiCl4 is carried on the solid MgCl2 alcohol adduct to obtain the olefin polymerization catalyst. This catalyst exhibits a good hydrogen response. However, the catalyst activity is low, and the primary catalyst particles tend to adhere to the container wall.

[0007] Chinese patents CN85100997A, CN200810227369.0, CN200810227371.8, and CN200810223088.8 disclose an olefin polymerization catalyst and a method for its preparation, wherein MgCl2 particles are dissolved in a system of an organic epoxy compound, an organophosphorus compound, and an inert organic solvent, yielding an MgCl2 solution which is then contacted with TiCl4 to obtain a primary olefin polymerization catalyst. The organophosphorus compound serves as an essential component in the solvent system that dissolves the MgCl2 particles.

[0008] Chinese patent 201310598556.0 discloses that during the preparation of the catalyst, an inert organic solvent, a monohydric alcohol with a carbon number of less than 5, and an alcohol with a carbon number of more than 5 are added to dissolve the MgCl2 particles, followed by the addition of an organophosphorus compound, an organosilicon compound, and an organoboron compound to produce a liquid MgCl2-alcohol adduct; subsequently, TiCl4 is contacted with the liquid MgCl2-alcohol adduct, and then a polyhydroxy solid is added, yielding an olefin polymerization catalyst that can improve the particle morphology of the solid primary catalyst, the hydrogen response in the catalytic olefin polymerization, and the bulk density of polyolefin.

[0009] Chinese patent 201310034134.0 discloses that during the preparation of the catalyst, an inert organic solvent, an alcohol with a carbon number of less than 5, and an alcohol with a carbon number of more than 5 are added to dissolve MgCl2 particles, followed by the addition of an organophosphorus compound and an organosilicon compound to produce a liquid MgCl2 alcohol adduct; subsequently, TiCl4 is contacted with the liquid MgCl2 alcohol adduct, and then a polyhydroxy solid is added, yielding a highly efficient olefin polymerization catalyst that can improve the particle morphology of the solid primary catalyst and the hydrogen response in the catalytic olefin polymerization.

[0010] Chinese patent 201210436136.8 discloses that during the preparation of the catalyst, an inert organic solvent, an alcohol with a carbon number of less than 5, and an alcohol with a carbon number of more than 5 are added to dissolve MgCl2 particles, and then an organophosphorus compound and an organosilicon compound are added to produce a liquid MgCl2 alcohol adduct; subsequently, TiCl4 is contacted with the liquid MgCl2 alcohol adduct, yielding a highly efficient olefin polymerization catalyst that can improve the particle morphology of the solid primary catalyst and the hydrogen response in the catalytic olefin polymerization.

[0011] Chinese patent CN104211844A discloses a gas-phase fluidized bed process for an LLDPE catalyst, including its production and application. The catalyst is produced using MgCl2, isooctanol, TiCl4, tert-butoxysilane, and electron donors, such as succinates and ethers. Furthermore, CN104211844A also discloses that the catalyst is used in conjunction with an alkylaluminum cocatalyst.

[0012] Chinese patent CN1315459A discloses a polymer catalyst system comprising an electron donor of the following formula: where two or more of X1 to X4 are selected from a variety of acyl or aryl ethers. Hydrocarbyloxy radicals such as methoxy, ethoxy, or propoxy are explicitly named as X1 to X4. Summary of the invention

[0013] To solve the above technical problem, one objective of this invention is to provide an olefin coordination polymerization catalyst.

[0014] Another objective of this invention is to provide a method for producing the above olefin coordination polymerization catalyst.

[0015] Another objective of this invention is to specify the use of the olefin coordination polymerization catalyst for ethylene polymerization, propylene polymerization, copolymerization of ethylene with α-olefin or copolymerization of propylene with α-olefin.

[0016] To solve the above problems, this invention provides an olefin coordination polymerization catalyst, wherein the catalyst consists of a primary catalyst mainly made from a magnesium compound, a transition metal halide, a C 2-15-alcohol and an electron donor in a molar ratio of 1:13-35:0.3-8.5:0.45-1.7, and a co-catalyst which is an organoaluminium compound; and wherein the molar ratio of the transition metal halide to the co-catalyst is 1:10-500; wherein the electron donor is a four-arm organoheteroether compound and the four-arm organoheteroether compound is selected from at least one of the following compounds: wherein the magnesium compound is selected from magnesium dichloride or magnesium diethyl oxide and the transition metal halide is selected from titanium tetrachloride.

[0017] In the above olefin coordination polymerization catalyst, the primary catalyst is preferably produced from the magnesium compound, the transition metal halide, the C 2-15-Alcohol, the electron donor and a silicon-containing substance in a molar ratio of 1:13-35:0.3-8.5:0.45-1.7:0.00005-1; more preferably the silicon-containing substance contains tetraethoxysilane and / or silica gel.

[0018] In the olefin coordination polymerization catalyst described above, the primary catalyst is preferably produced from the magnesium compound, the transition metal halide, the C 2-15 -Alcohol, the electron donor, and a succinic acid ester in a molar ratio of 1:13-35:0.3-8.5:0.45-1.7:0.001-1. Among these, the succinic acid ester used according to the invention is a type of conventional substance used in the prior art. In a specific embodiment of this invention, the succinic acid ester used is diethyl 2,3-diisopropyl succinate.

[0019] The addition of the four-armed organoheteroether compound can significantly improve the catalytic activity, hydrogen response and copolymerization ability of the catalyst and the morphology of the catalyst particles.

[0020] In the olefin coordination polymerization catalyst described above, the C 2-15 -Alcohol preferably selected from at least one of ethanol, propanol, butanol, pentanol, heptanol, isooctanol, octanol, nonanol, decanol, undecanol, dodecanol, tridecanol, tetradecanol and pentadecanol; more preferably C 2-15 -Alcohol selected from ethanol or isooctanol. The addition of the C2-15 alcohol (an alcohol with 2 to 15 carbon atoms) can significantly improve the hydrogen response of the catalyst.

[0021] In the above olefin coordination polymerization catalyst, the organoaluminium compound is preferably selected from at least one of triethylaluminium, triisobutylaluminium, tri-n-hexylaluminium, monochlorodiethylaluminium and methylaluminoxane (MAO).

[0022] This invention further discloses a method for producing the above olefin coordination polymerization catalyst, wherein the method for producing the primary catalyst comprises the following steps: Step 1: Dispersing the magnesium compound in an inert organic solvent, addition of the C 2-15 - Add alcohol and stir at 90 to 150°C for 1 to 5 hours; Step 2: Cool the mixture system from step 1 to 30 to 80°C, add the electron donor and allow the reaction to continue for 1 to 5 hours; Step 3: Cooling the mixing system from step 2 to -20 to 30°C, contacting the mixing system from step 2 with the transition metal halide, reaction at -20 to 30°C for 0.5 to 5 hours, subsequent heating of the system to 50 to 120°C, reaction for 0.5 to 5 hours, after completion of the reaction washing, filtering and vacuum drying, retaining the primary catalyst.

[0023] According to a specific embodiment of this invention, if the primary catalyst consists of the magnesium compound, the transition metal halide, the C 2-15 -Alcohol, the electron donor and a silicon-containing substance, the process for producing the primary catalyst comprises the following steps: Step 1: Disperse the magnesium compound in an inert organic solvent, add the C 2-15 -Alcohols and stirring at 90 to 150°C for 1 to 5 hours; Step 2: Cooling the mixing system from step 1 to 30 to 80°C, adding the electron donor and the silicon-containing substance and allowing the reaction to continue for 1 to 5 hours; Step 3: Cooling the mixing system from step 2 to -20 to 30°C, contacting the mixing system from step 2 with the transition metal halide, reaction at -20 to 30°C for 0.5 to 5 hours, subsequent heating of the system to 50 to 120°C, reaction for 0.5 to 5 hours, after completion of the reaction washing, filtering and vacuum drying, retaining the primary catalyst.

[0024] According to a specific embodiment of this invention, if the primary catalyst consists of the magnesium compound, the transition metal halide, the C 2-15 -Alcohol, the electron donor and a succinic acid ester, the process for the preparation of the primary catalyst comprises the following steps: Step 1: Disperse the magnesium compound in an inert organic solvent, add the C 2-15 -Alcohols and stirring at 90 to 150°C for 1 to 5 hours; Step 2: Cooling the mixing system from step 1 to 30 to 80°C, adding the electron donor and the succinic acid ester and allowing the reaction to continue for 1 to 5 hours; Step 3: Cooling the mixing system from step 2 to -20 to 30°C, contacting the mixing system from step 2 with the transition metal halide, reaction at -20 to 30°C for 0.5 to 5 hours, subsequent heating of the system to 50 to 120°C, reaction for 0.5 to 5 hours, after completion of the reaction washing, filtering and vacuum drying, retaining the primary catalyst.

[0025] According to a specific embodiment of this invention, during the production of the primary catalyst, the C 2-15 -Alcohol can be added gradually. For example, part of the C 2-15-Alcohols are added in step 1 and another part of the C 2-15 Alcohol is added after the electron donor (the four-armed organoheteroether compound) is added, or the silicon-containing substance or the succinic acid ester is added in step 2. Furthermore, the amount of C 2-15 -Alcohol to be added at each step is not particularly limited in this invention, as long as the total amount of C 2-15 -Alcohol that is added within the claimed scope of this application.

[0026] During the production of the primary catalyst, the inert organic solvent in step 1 preferably consists of at least one C 5-15 -saturated hydrocarbon, an alicyclic C 5-10 -hydrocarbon and an aromatic C 6-15-hydrocarbon; more preferably the inert organic solvent selected from at least one of decane, octane, dodecane, toluene, xylene, hexane, heptane and cyclohexane.

[0027] During the production of the primary catalyst, the washing and filtration in step 3 involves washing the product with toluene or n-hexane and removing the unreacted material by filtration, followed by vacuum drying.

[0028] During the production of the primary catalyst, the vacuum drying temperature in step 3 is preferably 40 to 90°C and the vacuum drying time is 0.5 to 5 hours. This invention further discloses the use of the above olefin coordination polymerization catalyst for ethylene polymerization, propylene polymerization, copolymerization of ethylene with α-olefin, or copolymerization of propylene with α-olefin.

[0029] According to a specific embodiment of this invention, the α-olefin is preferably a C in the use 3-20 - Olefin; more preferably the α-olefin selected from at least one of propylene, 1-butene, 1-hexene, 1-octene, 1-decene, 3-methyl-1-butene, cyclopentene, 4-methyl-1-pentene, 1,3-butadiene, isoprene, styrene and methylstyrene.

[0030] The olefin polymerization catalyst provided according to the invention has the following advantageous effects.

[0031] During catalyst preparation, the addition of the electron donor (four-armed organoheteroether compound) after dissolving the magnesium halide support can significantly increase the catalyst's catalytic activity, eliminate the statistical electricity of the solid primary catalyst particles, and prevent the primary catalyst particles from adhering to the container wall. The addition of the inert organic solvent, the alcohol with a carbon number of 2 to 15, the magnesium support, and subsequently the electron donor to produce the magnesium compound-alcohol adduct, followed by contact of the transition metal halide (TiCl4) with the magnesium compound-alcohol adduct to obtain a highly efficient olefin polymerization catalyst, can improve the particle morphology of the solid primary catalyst and the hydrogen response of the catalytic olefin polymerization.The addition of the electron donor can significantly increase the catalytic activity of the catalyst, improve the particle morphology of the catalyst, eliminate the static electricity of the solid primary catalyst particles, and prevent the primary catalyst particles from adhering to the vessel wall. The olefin polymerization catalyst provided by this invention has good particle morphology and a uniform particle size distribution; the catalyst exhibits excellent hydrogen response, and the melt flow rate (MFR) of polyethylene can be adjusted from 0.01 g / 10 min to 550 g / 10 min. The catalyst loading is high, the catalytic activity is high, and the solid primary catalyst particles do not adhere to the vessel wall; the polymer particles have good morphology, high bulk density, and are less finely powdered.and the catalyst is suitable for slurry polymerization, loop reactor polymerization, gas-phase polymerization or a combined polymerization process; the process for producing the primary catalyst is simple and has few requirements regarding equipment, low energy consumption and low environmental pollution.

[0032] The object of this invention is to provide an olefin copolymerization catalyst with good particle morphology and a spherical shape, wherein the catalyst particles do not adhere to the vessel wall; the catalyst has an excellent hydrogen response and the melt flow rate (MFR) of polyethylene can be adjusted from 0.01 g / 10 min to 550 g / 10 min; the catalyst has high activity and is applicable to a slurry polymerization process, a gas-phase polymerization process or a combined polymerization process; the manufacturing process is simple and has low equipment requirements and low environmental pollution.

[0033] The mass percentage of Ti in the primary catalyst was determined by ICP.

[0034] The measurement conditions for the melt flow rate of polyethylene and polyethylene copolymers are as follows: test load 5 kg and temperature 190°C.

[0035] The measurement conditions for the melt flow rate of isotactic polypropylene are as follows: test load 2.16 kg and temperature 230°C. Detailed description of preferred embodiments

[0036] To better understand the technical features, objectives, and advantageous effects of this invention, exemplary embodiments of the invention and their advantageous effects are described in detail by means of specific examples. These are intended to give the reader a better understanding of the scope and characteristics of this invention, but not to limit its scope. Example 1

[0037] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps.

[0038] In a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 20 ml of n-decane, 0.2 ml of ethanol, and 6.5 ml of isooctanol were added. The mixture was heated to 120°C with stirring and reacted for 2 hours. After cooling to 50°C, 2.5 g of the four-arm organoheteroether compound 1, prepared according to the formula, were added sequentially, and the temperature was maintained at 50°C while the reaction was carried out for 2 hours. The system was then cooled to -15°C, 30 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then increased to 110°C, and the reaction was carried out for a further 2 hours.Stirring was stopped, the system was allowed to stand, layered, filtered, washed 4 times with hexane (30 ml each time) and dried under vacuum for 2 hours at 70°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 2

[0039] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: Into a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 30 ml of n-decane, 0.25 ml of ethanol, and 7 ml of isooctanol were added. The mixture was heated to 120°C with stirring and reacted for 2 hours. After cooling to 60°C, 1.5 g of the four-arm organoheteroether compound 2, according to the formula, were added sequentially, and the temperature was maintained at 60°C while the reaction was carried out for 2 hours. The system was then cooled to -10°C, 40 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then raised to 100°C, and the reaction was carried out for a further 2 hours. The process was carried out for 2 hours. Stirring was stopped, the system was allowed to stand, layered, filtered, washed 4 times with hexane (30 ml each time) and dried under vacuum for 3 hours at 60°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 3

[0040] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: Into a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 20 ml of n-decane, 0.2 ml of ethanol, and 8 ml of isooctanol were added. The mixture was heated to 100°C with stirring and reacted for 2 hours. After cooling to 50°C, 13 g of the four-arm organoheteroether compound 3, according to the formula, were added sequentially, and the temperature was maintained at 80°C. The reaction was carried out for 2 hours. The system was cooled to -15°C, 35 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then raised to 65°C, and the reaction was carried out for a further 2 hours. The process was carried out for 2 hours. Stirring was stopped, the system was allowed to stand, layered, filtered, washed 4 times with hexane (30 ml each time) and dried under vacuum for 4 hours at 50°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 4

[0041] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: Into a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 20 ml of n-decane, 2 ml of ethanol, and 7 ml of isooctanol were added. The mixture was heated to 110°C with stirring and reacted for 4 hours. After cooling to 50°C, 0.5 g of the four-arm organoheteroether compound 4, according to the formula, was added sequentially, and the temperature was maintained at 100°C. The reaction was carried out for 2 hours. The system was cooled to -15°C, 15 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then increased to 120°C, and the reaction was carried out for a further 1 hour. The process was carried out for 2 hours. Stirring was stopped, the system was allowed to stand, layered, filtered, washed 4 times with hexane (30 ml each time) and dried under vacuum for 2 hours at 80°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 5

[0042] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps:

[0043] Into a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 20 ml of n-decane, 0 ml of ethanol, and 4 ml of isooctanol were added. The mixture was heated to 100°C with stirring and reacted for 5 hours. After cooling to 40°C, 5 g of the four-arm organoheteroether compound 5, according to the formula, were added sequentially, and the temperature was maintained at 40°C while the reaction was carried out for 2 hours. The system was then cooled to -15°C, 25 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 3 hours. The temperature was then increased to 110°C, and the reaction was carried out for a further 2 hours.Stirring was stopped, the system was allowed to stand, layered, filtered, washed 4 times with hexane (30 ml each time) and dried under vacuum for 2 hours at 90°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 6

[0044] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: Into a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 20 ml of n-decane, 2.5 ml of ethanol, and 3 ml of isooctanol were added. The mixture was heated to 110°C with stirring and reacted for 2 hours. After cooling to 50°C, 3 g of the four-arm organoheteroether compound 6 according to the formula and 8 ml of tetraethoxysilane were added successively. The temperature was maintained at 50°C, and the reaction was carried out for 3 hours. The system was then cooled to -15°C, 40 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then increased to 70°C, and the reaction was carried out for a further 2 hours.Stirring was stopped, the system was allowed to stand, layered, filtered, washed 4 times with hexane (30 ml each time) and dried under vacuum for 2 hours at 100°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 7

[0045] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: Into a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 30 ml of n-heptane, and 0.2 ml of ethanol were added. The mixture was heated to 110°C with stirring and reacted for 4 hours. After cooling to 50°C, 6 g of the four-arm organoheteroether compound 7, according to the formula, and 0.2 ml of ethanol were added successively. The temperature was maintained at 50°C, and the reaction was carried out for 4 hours. The system was then cooled to -15°C. 35 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then increased to 95°C, and the reaction was carried out for a further 4 hours. Stirring was stopped, the system was allowed to stand, layered, filtered, washed twice with toluene (30 ml each time) and four times with hexane (30 ml each time), and dried under vacuum at 60°C for 3 hours. This yielded a powdered, solid primary catalyst with good fluidity, no stickiness to the vessel wall, a uniform particle size distribution, and a spherical shape. Example 8

[0046] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: Into a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 20 ml of dodecane, 0.3 ml of ethanol, and 6 ml of decanol were added. The mixture was heated to 110°C with stirring and reacted for 2 hours. After cooling to 50°C, 6 g of the four-arm organoheteroether compound 8, according to the formula, were added sequentially, and the temperature was maintained at 50°C for 3 hours. The system was cooled to -10°C, 30 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then increased to 80°C, and the reaction was carried out for a further 3 hours. Stirring was stopped, the system was allowed to stand, layered, filtered, washed 4 times with hexane (30 ml each time) and dried under vacuum for 4 hours at 60°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 9

[0047] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: In a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 30 ml of toluene, and 0.5 ml of propanol were added. The mixture was heated to 110°C with stirring and reacted for 5 hours. After cooling to 50°C, 6 g of the four-arm organoheteroether compound 9, according to the formula, were added sequentially, and the temperature was maintained at 50°C for 2 hours. The system was cooled to 0°C, 15 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then raised to 90°C, and the reaction was carried out for a further 2 hours. Stirring was stopped, the system was allowed to stand, layered, filtered, washed twice with hexane (30 ml each time) and dried under vacuum for 2 hours at 110°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 10

[0048] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: Into a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 30 ml of n-octane, 4 ml of butanol, and 0.5 ml of isooctanol were added. The mixture was heated to 110°C with stirring and reacted for 2 hours. After cooling to 50°C, 2 g of the four-arm organoheteroether compound 10, prepared according to the formula, were added sequentially, and the temperature was maintained at 50°C while the reaction was carried out for 2 hours. The system was then cooled to -5°C, 45 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then raised to 90°C, and the reaction was carried out for a further 2 hours.Stirring was stopped, the system was allowed to stand, layered, filtered, washed 4 times with hexane (30 ml each time) and dried under vacuum for 2 hours at 120°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 11

[0049] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: In a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 15 ml of n-decane, and 5 ml of ethanol were added. The mixture was heated to 110°C with stirring and reacted for 2 hours. After cooling to 50°C, 4 g of the four-arm organoheteroether compound 11 were added sequentially according to the formula, and the temperature was maintained at 50°C while the reaction was carried out for 2 hours. The system was then cooled to 25°C, 25 ml of titanium tetrachloride were added dropwise at -10°C, and the reaction was continued for 1 hour at 0°C. The temperature was then increased to 110°C over 4 hours, and the reaction was carried out for a further 2 hours.Stirring was stopped, the system was allowed to stand, layered, filtered, washed 4 times with hexane (30 ml each time) and dried under vacuum for 3 hours at 50°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 12

[0050] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: In a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 40 ml of n-octane, and 1.5 ml of ethanol were added. The mixture was heated to 120°C with stirring and reacted for 2 hours. After cooling to 60°C, 3 g of the four-arm organoheteroether compound 12, according to the formula, and 6 ml of tetraethoxysilane were added successively. The temperature was maintained at 60°C, and the reaction was carried out for 2 hours. The system was cooled to 25°C, 25 ml of titanium tetrachloride were added dropwise at -15°C, and the reaction was carried out for 1 hour at -5°C. The temperature was then raised to 100°C over 4 hours, and the reaction was carried out for a further 2 hours.Stirring was stopped, the system was allowed to stand, layered, filtered, washed 4 times with hexane (30 ml each time) and dried under vacuum for 3 hours at 50°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 13

[0051] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: In a reactor carefully substituted with nitrogen, 1 g of magnesium diethyl oxide, 20 ml of n-decane, and 3 ml of isooctanol were added. The mixture was heated to 110°C with stirring and reacted for 3 hours. After cooling to 50°C, 1 g of the four-arm organoheteroether compound 13 was added sequentially according to the formula, and the temperature was maintained at 50°C while the reaction was carried out for 2 hours. The system was then cooled to 0°C, 15 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then raised to 90°C, and the reaction was carried out for a further 2 hours.Stirring was stopped, the system was allowed to stand, layered, filtered, washed twice with hexane (30 ml each time) and dried under vacuum for 4 hours at 50°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 14

[0052] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: In a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 20 ml of n-decane, 10 ml of toluene, 1 ml of ethanol, and 6.5 ml of isooctanol were added. The mixture was heated to 100°C with stirring and reacted for 4 hours. After cooling to 40°C, 3 g of the four-arm organoheteroether compound 14, according to the formula, and 0.15 ml of silica gel were added successively. The temperature was maintained at 70°C, and the reaction was carried out for 2 hours. The system was cooled to -15°C, 15 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then increased to 90°C, and the reaction was carried out for a further 2 hours.Stirring was stopped, the system was allowed to stand, layered, filtered, washed twice with hexane (30 ml each time) and dried under vacuum for 2 hours at 60°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 15 (not according to the invention)

[0053] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: In a reactor carefully substituted with nitrogen, 1 g of magnesium diethoxide, 20 ml of n-decane, and 6.5 ml of isooctanol were added. The mixture was heated to 120°C with stirring and reacted for 0.5 hours. After cooling to 50°C, 8 g of the four-arm organoheteroether compound 15, according to the formula, and 10 ml of succinic acid ester (diethyl 2,3-diisopropyl succinate) were added sequentially. The temperature was maintained at 50°C, and the reaction was carried out for 3 hours. The system was then cooled to -15°C, 15 ml of titanium tetrachloride were added dropwise, and the reaction was carried out for 1 hour. The temperature was increased to 90°C and the reaction was carried out for a further 2 hours and dried under vacuum for 2 hours at 60°C, obtaining a powdered solid primary catalyst with good fluidity, without stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 16

[0054] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: Into a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 20 ml of n-decane, 10 ml of toluene, 1 ml of ethanol, and 6.5 ml of isooctanol were added. The mixture was heated to 100°C with stirring and reacted for 4 hours. After cooling to 40°C, 6 g of the four-arm organoheteroether compound 16, according to the formula, were added, the temperature was increased to 70°C, and the reaction was carried out for 1 hour. The system was then cooled to -15°C. 15 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then increased to 90°C, and the reaction was carried out for another 2 hours. Stirring was stopped, the system was allowed to stand, layered, filtered, washed twice with hexane (30 ml each time), and dried under vacuum at 60°C for 2 hours. This yielded a powdered, solid primary catalyst with good fluidity, no stickiness to the vessel wall, a uniform particle size distribution, and a spherical shape. Example 17 (not according to the invention)

[0055] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: Into a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 20 ml of n-decane, 10 ml of toluene, 1 ml of ethanol, and 6.5 ml of isooctanol were added. The mixture was heated to 100°C with stirring and reacted for 4 hours. After cooling to 40°C, 5 g of the four-arm organoheteroether compound 17, according to the formula, and 0.25 ml of tetraethoxysilane were added consecutively. The temperature was increased to 70°C, and the reaction was carried out for 2 hours. The system was cooled to -15°C, 15 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then increased to 90°C, and the reaction was carried out for a further 2 hours.Stirring was stopped, the system was allowed to stand, layered, filtered, washed twice with hexane (30 ml each time) and dried under vacuum for 2 hours at 60°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Example 18

[0056] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: In a reactor carefully substituted with nitrogen, 1 g of magnesium diethoxide, 30 ml of n-hexane, and 0.2 ml of ethanol were added. The mixture was heated to 100°C with stirring and reacted for 4 hours. After cooling to 40°C, 3 g of the four-arm organoheteroether compound 18 were added sequentially according to the formula, and the temperature was maintained at 70°C while the reaction was carried out for 2 hours. The system was then cooled to -15°C, 15 ml of titanium tetrachloride were added dropwise, and the reaction was continued for 1 hour. The temperature was then raised to 90°C, and the reaction was carried out for a further 2 hours.Stirring was stopped, the system was allowed to stand, layered, filtered, washed twice with hexane (30 ml each time) and dried under vacuum for 2 hours at 60°C, obtaining a powdered solid primary catalyst with good fluidity, no stickiness to the vessel wall, and with a uniform particle size distribution and a spherical shape. Comparative example 1

[0057] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: Into a reactor carefully substituted with nitrogen, 1 g of magnesium diethoxide, 20 ml of decane, 16 ml of isooctanol, and 0.4 ml of ethanol were added. The mixture was heated to 100°C with stirring and the reaction was carried out for 2 hours. After cooling to 50°C, 3 ml of tetraethoxysilane were added, the temperature was maintained at 50°C, and the reaction was carried out for 2 hours. The system was then cooled to -15°C, 35 ml of titanium tetrachloride were added dropwise, and the reaction was carried out for 1 hour. Finally, the temperature was raised to 100°C, and the reaction was carried out for 2 hours. Stirring was stopped, the system was allowed to stand, layers formed, it was filtered, washed with hexane 4 times (30 ml each time) and dried under vacuum at 80°C for 2 hours, obtaining a powdered solid primary catalyst with good fluidity, a uniform particle size distribution and a spherical shape, with the particles tending to stick to the vessel wall. Comparative example 2

[0058] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: Into a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 20 ml of decane, 16 ml of isooctanol, and 0.4 ml of ethanol were added. The mixture was heated to 120°C with stirring and reacted for 3 hours. After cooling to 50°C, 3 ml of tributyl phosphate and 3 ml of tetraethoxysilane were added, the temperature was maintained at 50°C, and the reaction was carried out for 2 hours. The system was cooled to -15°C, 15 ml of titanium tetrachloride were added dropwise, and the reaction was carried out for 1 hour. The temperature was then raised to 90°C and the reaction continued for 2 hours. Stirring was stopped, and the system was allowed to stand. Layers formed. The mixture was filtered, washed twice with hexane (30 ml each time), and dried under vacuum at 60°C for 2 hours, yielding a powdery solid primary catalyst, the particles of which tended to adhere to the vessel wall. Comparative example 3

[0059] This example gives a method for the preparation of an olefin coordination polymerization catalyst, wherein the method for the preparation of the primary catalyst includes the following steps: Into a reactor carefully substituted with nitrogen, 1 g of magnesium dichloride, 20 ml of decane, 16 ml of isooctanol, and 0.4 ml of ethanol were added. The mixture was heated to 120°C with stirring and reacted for 3 hours. After cooling to 50°C, 3 ml of tributyl phosphate were added, the temperature was maintained at 50°C, and the reaction was carried out for 2 hours. The system was then cooled to -15°C, 15 ml of titanium tetrachloride were added dropwise, and the reaction was carried out for 1 hour. The temperature was then raised to 90°C, and the reaction was carried out for 2 hours. Stirring was stopped, and the system was allowed to stand. Layers formed. The mixture was filtered, washed twice with hexane (30 ml each time), and dried under vacuum at 60°C for 2 hours, yielding a powdery solid primary catalyst, the particles of which tended to adhere to the vessel wall. Additional Example 1

[0060] Ethylene polymerization: To a 2-liter stainless steel autoclave, carefully substituted with nitrogen, 10 mg of the primary catalyst component, 1000 ml of dehydrated hexane, and 1.17 ml (2 mmol / ml) of a co-catalyst AlEt3 solution were sequentially added. After raising the temperature to 75°C, the autoclave was charged with 0.28 MPa of hydrogen gas, then with ethylene to 0.73 MPa, and allowed to react for 2 hours at constant pressure and temperature. Additional Example 2

[0061] Ethylene copolymerization: To a 2-liter stainless steel autoclave, carefully substituted with nitrogen, 10 mg of the primary catalyst component, 1000 ml of dehydrated hexane, 1.17 ml (2 mmol / ml) of an AlEt3 solution, and 30 ml of 1-hexene were added sequentially. After raising the temperature to 75°C, the autoclave was charged with 0.28 MPa of hydrogen gas, then with ethylene to 0.73 MPa, and allowed to react for 2 hours at constant pressure and temperature. Additional Example 3

[0062] Propylene polymerization: To a 2-liter stainless steel autoclave, carefully substituted with nitrogen, 10 mg of the primary catalyst component, 1000 ml of dehydrated hexane, 1.17 ml (2 mmol / ml) of an AlEt3 solution, and 4 ml of external electron donor triethoxycyclopentyloxysilane (0.18 M hexane solution) were sequentially added. After increasing the temperature to 80°C, the autoclave was charged with 0.1 MPa of hydrogen gas, then with propylene to 3 MPa, and allowed to react for 2 hours at constant pressure and temperature. The olefin polymerization results of additional examples 1 to 3 are shown in Table 1. Example. Titanium content of the primary catalyst (wt.%) Catalytic efficiency in application example 1 (kg / g cat.) Catalytic efficiency in application example 2 (kg / g cat.) Catalytic efficiency in application example 3 (kg / g cat.) Bulk density (g / cm³) 3 ) Melting flow rate (g / 10 min) 1 5,0 25 27 - 0,32 2,1 2 4,8 26 27 - 0,33 2,0 3 5,1 24 24 - 0,34 2,3 4 5,2 25 25 - 0,34 2,0 5 5,3 24 24 - 0,35 1,9 6 5,2 24 25 - 0,33 2,0 7 4,8 23 23 - 0,32 1,9 8 4,8 24 24 - 0,31 2,1 9 5,1 24 25 - 0,32 1,8 10 4,7 23 23 - 0,33 2,0 11 4,8 25 24 - 0,33 2,2 12 4,9 22 21 - 0,32 2,2 13 5,3 21 22 - 0,33 2,0 14 5,2 22 21 - 0,31 1,8 15 3,8 - - 33 0,47 2,1 16 5,2 23 23 0,33 1,7 17 5,1 21 22 0,32 1,9 18 5,0 22 23 0,33 2,1 Example 1 5,0 17 18 - 0,28 1,2 Example 2 5,1 16 17 - 0,26 0,9 Example 3 5,1 15 18 - 0,29 1,0 Effects of this invention

[0063] Based on Examples 1 to 3 of this invention, it is evident that when the four-arm organoheteroether compound is not added, the catalyst activity is lower and the bulk density is also reduced, indicating that the addition of the four-arm organoheteroether compound improves the catalyst morphology, thereby making the catalyst particles denser and increasing their density. Furthermore, when the four-arm organoheteroether compound is not added, the melt flow rate of the polymer was reduced by 50% compared to that of the polymer with the addition, indicating that the addition of the four-arm organoheteroether compound increases the hydrogen response of the catalyst.

[0064] During the preparation of the catalyst of this invention, the catalyst is dispersed, and the alcohol with 2 to 15 carbon atoms is added. The solution containing dissolved magnesium halide does not contain the organic epoxy compound or the organophosphorus compound. The addition of the organic epoxy compound and the organophosphorus compound can affect the morphology and precipitation rate of the microcrystals that precipitate in the later stage of the dropwise addition of titanium to magnesium halide. This has a significant impact on the morphology of the catalyst and the titanium loading, thereby affecting the overall performance of the catalyst. According to the invention, neither the organic epoxy compound nor the organophosphorus compound is added when the catalyst is dispersed, and the aforementioned adverse effects are effectively avoided.Furthermore, because no precipitation aid is required, the manufacturing process is less complex, making the process simpler and reducing costs.

[0065] The catalyst of this invention has good particle morphology, a spherical shape and a uniform particle size distribution, and the catalyst particles do not adhere to the vessel wall; the catalyst has high activity and an excellent hydrogen response, and the melt flow rate (MFR) of polyethylene can be adjusted from 0.01 g / 10 min to 550 g / 10 min; the catalyst is applicable to a slurry polymerization process, a loop reactor polymerization process, a gas phase polymerization process, or a combined polymerization process.It is assumed that the addition of the four-armed organoheteroether compound can significantly increase the catalytic activity, hydrogen response and copolymerization capability of the catalyst, improve the particle morphology of the catalyst, eliminate the static electricity of the solid primary catalyst particles and prevent the primary catalyst particles from adhering to the boiler wall.

[0066] Of course, there are various other embodiments of this invention, and a person skilled in the art can make various corresponding changes and modifications according to this invention without deviating from its scope and framework. Such corresponding changes and modifications are intended to fall within the scope of the appended claims. SUMMARY

[0067] This invention relates to an olefin coordination polymerization catalyst, a manufacturing process, and an application thereof. The olefin polymerization catalyst consists of a primary catalyst, mainly composed of a magnesium compound, a transition metal halide, and a C 2-15 -alcohol and an electron donor in a molar ratio of 1:13-35:0.3-8.5:0.45-1.7 and a co-catalyst which is an organoaluminium compound wherein the molar ratio of the transition metal halide to the co-catalyst is 1:10-500.

[0068] The catalyst of this invention has good particle morphology and a spherical shape, and the catalyst particles do not adhere to the vessel wall; the catalyst has high activity and excellent hydrogen regulation performance, and the melt flow rate (MFR) of the polyethylene can be adjusted from 0.01 g / 10 min to 550 g / 10 min; and the catalyst is suitable for a slurry polymerization process, a loop reactor polymerization process, a gas phase polymerization process, or a combined polymerization process.

Claims

[1] Olefin coordination polymerization catalyst, wherein the catalyst consists of a primary catalyst mainly composed of a magnesium compound, a transition metal halide, a C 2-15 -alcohol and an electron donor in a molar ratio of 1:13-35:0.3-8.5:0.45-1.7, and a co-catalyst which is an organoaluminium compound, where the molar ratio of the transition metal halide to the co-catalyst is 1:10-500, wherein the electron donor is a four-armed organoheteroether compound, and the four-armed organoheteroether compound is selected from at least one of the following compounds wherein the magnesium compound is selected from magnesium dichloride or magnesium diethoxide and the transition metal halide is selected from titanium tetrachloride. [2] Olefin coordination polymerization catalyst according to claim 1, wherein the primary catalyst is produced from the magnesium compound, the transition metal halide, the C 2-15 -Alcohol, the electron donor and a silicon-containing substance in a molar ratio of 1:13-35:0.3-8.5:0.45-1.7:0.00005-1. [3] Olefin coordination polymerization catalyst according to claim 2, wherein the silicon-containing substance comprises tetraethoxysilane and / or silica gel. [4] Olefin coordination polymerization catalyst according to claim 1, wherein the primary catalyst is produced from the magnesium compound, the transition metal halide, the C 2-15 -Alcohol, electron donor and a succinic acid ester in a molar ratio of 1:13-35:0.3-8.5:0.45-1.7:0.001-1. [5] Olefin coordination polymerization catalyst according to any one of claims 1 to 4, wherein the C 2-15-Alcohol selected is at least one of ethanol, propanol, butanol, pentanol, heptanol, isooctanol, octanol, nonanol, decanol, undecanol, dodecanol, tridecanol, tetradecanol and pentadecanol. [6] Olefin coordination polymerization catalyst according to claim 5, wherein the C2-C 15 -The alcohol selected is either ethanol or isooctanol. [7] Olefin coordination polymerization catalyst according to any one of claims 1 to 4, wherein the organoaluminium compound is selected from at least one of triethylaluminium, triisobutylaluminium, tri-n-hexylaluminium, monochlorodiethylaluminium and methylaluminoxane. [8] Method for producing the olefin coordination polymerization catalyst according to any one of claims 1 to 7, wherein the method for producing the primary catalyst comprises the following steps: Step 1: Disperse the magnesium compound in an inert organic solvent, add the C 2-15-Alcohols and stirring at 90 to 150°C for 1 to 5 hours, Step 2: Cooling the mixing system from step 1 to 30 to 80°C, adding the electron donor and allowing the reaction to continue for 1 to 5 hours. Step 3: Cooling the mixing system from step 2 to -20 to 30°C, contacting the mixing system from step 2 with the transition metal halide, reaction at -20 to 30°C for 0.5 to 5 hours, subsequent heating of the system to 50 to 120°C, reaction for 0.5 to 5 hours, after completion of the reaction washing, filtering and vacuum drying, retaining the primary catalyst. [9] Process for the preparation of the olefin coordination polymerization catalyst according to claim 8, wherein when the primary catalyst is made from the magnesium compound, the transition metal halide, the C 2-15-Alcohol, the electron donor and a silicon-containing substance, the process for producing the primary catalyst includes the following steps: Step 1: Disperse the magnesium compound in an inert organic solvent, add the C 2-15 -Alcohols and stirring at 90 to 150°C for 1 to 5 hours, Step 2: Cooling the mixing system from step 1 to 30 to 80°C, adding the electron donor and the silicon-containing substance and allowing the reaction to continue for 1 to 5 hours. Step 3: Cooling the mixing system from step 2 to -20 to 30°C, contacting the mixing system from step 2 with the transition metal halide, reaction at -20 to 30°C for 0.5 to 5 hours, subsequent heating of the system to 50 to 120°C, reaction for 0.5 to 5 hours, after completion of the reaction washing, filtering and vacuum drying, retaining the primary catalyst. [10] Process for the preparation of the olefin coordination polymerization catalyst according to claim 8, wherein when the primary catalyst is made from the magnesium compound, the transition metal halide, the C 2-15 -Alcohol, the electron donor and a succinic acid ester, the process for the preparation of the primary catalyst includes the following steps: Step 1: Disperse the magnesium compound in an inert organic solvent, add the C 2-15 -Alcohols and stirring at 90 to 150°C for 1 to 5 hours, Step 2: Cooling the mixing system from step 1 to 30 to 80°C, adding the electron donor and the succinic acid ester and allowing the reaction to continue for 1 to 5 hours. Step 3: Cooling the mixing system from step 2 to -20 to 30°C, contacting the mixing system from step 2 with the transition metal halide, reaction at -20 to 30°C for 0.5 to 5 hours, subsequent heating of the system to 50 to 120°C, reaction for 0.5 to 5 hours, after completion of the reaction washing, filtering and vacuum drying, retaining the primary catalyst. [11] Process for the preparation of the olefin coordination polymerization catalyst according to any one of claims 8 to 10, wherein in step 1 the inert organic solvent is at least one of a C 5-15 -saturated hydrocarbon, C 5-10 -alicyclic hydrocarbon and C 6-15 -aromatic hydrocarbon is. [12] Process for the preparation of the olefin coordination polymerization catalyst according to claim 11, wherein the inert organic solvent is selected from at least one of the following: decane, octane, dodecane, toluene, xylene, hexane, heptane and cyclohexane. [13] Method for producing the olefin coordination polymerization catalyst according to any one of claims 8 to 10, wherein in step 3 the vacuum drying temperature is 40 to 90°C and the vacuum drying time is 0.5 to 5 hours. [14] Use of the olefin coordination polymerization catalyst according to any one of claims 1 to 7 for ethylene polymerization, propylene polymerization, copolymerization of ethylene with α-olefin or copolymerization of propylene with α-olefin. [15] Use of the olefin coordination polymerization catalyst according to claim 14, wherein the α-olefin is a C 3-20-Olefin is, wherein the α-olefin is preferably selected from at least one of propylene, 1-butene, 1-hexene, 1-octene, 1-decene, 3-methyl-1-butene, cyclopentene, 4-methyl-1-pentene, 1,3-butadiene, isoprene, styrene and methylstyrene.