270 results about "Methylcyclopentadiene" patented technology

Conducting and superconducting doped, magnesium boride materials are formed by a process which combines physical vapor deposition with chemical vapor deposition by physically generating magnesium vapor in a deposition chamber and introducing a boron containing precursor and a dopant into the chamber which combines with the magnesium vapor to form the material. Embodiments include forming carbon-doped magnesium diboride film and powder with hybrid physical-chemical vapor deposition (HPCVD) by adding a carbon-containing metalorganic magnesium precursor, bis(methylcyclopentadienyl)magnesium, with a hydrogen carrier gas together with a borane precursor in a chamber having a source of magnesium vapor.

The invention relates to a method of separating and utilizing ethylene by product C9<+> distillate produced by cracking, and consists of the procedures: the C9<+> distillate is separated into ethylene distillate with rich benzene and distillate at the bottom of a rectifying tower by rectifying under reduced pressure; the distillate at the bottom of the rectifying tower is heated to 180 - 380DEG C and rectified under normal pressure; cyclopentadiene distillate, methyl cyclopentadiene distillate, distillate with rich dicyclopentadiene, distillate with high content of indene and heavy end distillate are separated from the top of the rectifying tower to the bottom of the rectifying tower in turn. With the method, not only high quality petroleum resin is available, but cyclopentadiene and methyl cyclopentadiene can also be obtained at the same time.

The invention relates to a separation technology of a mixture with cyclopentadiene and methyl cyclopentadiene as main ingredients, which pertains to the fine chemicals manufacturing technical field. A mixture with main ingredients of CPD and MCPD is firstly extracted from the mixture with cyclopentadiene and methyl cyclopentadiene as main ingredients from the top of a de-polymerization rectifying tower; the mixture with the main ingredients of CPD and MCPD then enters a CPD tower, and CPD is extracted from the top of a normal pressure rectifying tower; materials at the bottom of the CPD tower enter a dimerization reactor, and a mixture material with DMCPD as a main ingredient is acquired; the mixture material enters a MCPD tower to be rectified under reduced pressure, and the methyl cyclopentadiene is extracted from the top of the MCPD tower in the form of DMCPD. The invention adopts a de-polymerization normal reduced pressure separation method, which requires little supportive equipment investment and simple operation technique and can effectively overcome defects of the prior art, reduce product waste during the mixture separation process, improve extraction rate by one operation and reduce energy consumption, so that the cyclopentadiene and methyl cyclopentadiene of relatively high purity can be obtained.

The invention provides a gasoline octane number enhancer composition capable of greatly enhancing antiknock property of gasoline fuel. The additive comprises a gasoline antiknock agent methyl cyclopentadiene tricarbonyl manganese (MMT), an alcohol octane number accelerator, an amine accelerator, an amide accelerator, an alkyl phenol octane number enhancer, a metal extraction additive and a cosolvent. The gasoline octane number enhancer provided by the invention can enhance the gasoline octane number by 2.0-10.0 units, has the characteristic of preventing increase of engine deposits, and can not damage the automobile engine.

The present invention relates to a vehicle gasoline antiknock additive mixture, which belongs to the gasoline antiknock additive technology field. The present invention uses cyclopentadiene manganese tricarbonyl (CMT) antiknock additive with more excellent antiknock performance to replace the prior methyl cyclopentadienyl manganese tricarbonyl (MMT) antiknock additive, to achieve the purposes of promoting the oil product octane number of gasoline components, in particular, promoting the oil product octane number of low grade gasoline components. The vehicle gasoline antiknock additive mixture of the present invention comprises antiknock additive, solvent, fluxing agent and antioxidating agent, wherein, the antiknock additive is methyl cyclopentadienyl manganese tricarbonyl. The technical effect of the present invention is outstanding, the octane number of the gasoline can be obviously promoted, in particular, the octane number of the low grade gasoline is promoted, and the octane number of a component gasoline is about 60 units, a high octane number gasoline is a high grade clean fuel after being concocted through adding the mixture of the present invention, and attains the national standards (GB17930-1999) of the vehicle gasoline, thereby pioneering the new way that the vehicle unleaded gasoline clean fuel is produced through the low grade oil products.

The invention discloses a production method of unleaded gasoline for a vehicle, wherein the unleaded gasoline is prepared from the following raw materials in parts by weight: 35-65 parts of methanol, 60-30 parts of gasoline, 2-4 parts of isobutyl alcohol, 1-3 parts of acetone, 2-4 parts of methyl tertiary butyl ether, 2-5.5 parts of toluene or dimethyl benzene, 0.01-0.03 part of methyl cyclopentadienyl manganese tricarbonyl, 0.03-0.1 part of butyl octyl zinc thiophosphate and 0.1-3 parts of dicyclopentadienyl iron; the unleaded gasoline is prepared by the method comprising the following steps of: sequentially adding the acetone, the toluene or the dimethyl benzene, the isobutyl alcohol, the methyl tertiary butyl ether, the butyl octyl zinc thiophosphate, the dicyclopentadienyl iron and the methyl cyclopentadienyl manganese tricarbonyl as the raw materials into a container at normal temperature and under normal pressure, fully stirring to obtain a yellow transparent liquid, then adding the yellow transparent liquid into the methanol and fully stirring to obtain modified methanol; adding the modified methanol liquid into the gasoline and uniformly stirring to obtain a finished product. The invention has the advantages of low cost, low pollution, low oil consumption, low corrosion and high power, and each item index of the invention exceeds that of the traditional gasoline.

The invention relates to a method for extracting methyl cyclopentadiene from ethylene cracked C9 heavy fractions, which comprises the following steps of: (1) preheating C9 heavy fractions serving as a raw material and conveying to a depolymerizing reactor; (2) performing depolymerization reaction on the raw material; (3) adding a gas-phase material generated by depolymerization into a rectifying column T1; (4) adding a mixture of coarse cyclopentadiene and coarse methyl cyclopentadiene generated in the step (3) into a rectifying column T2 for further rectifying; (5) adding the residual material in the depolymerizing reactor into a coumarone resin reaction kettle to generate coumarone resin; (6) performing dimerization on the cyclopentadiene material to obtain dicyclopentadiene; (7) performing dimerization on the methyl cyclopentadiene material to obtain methyl cyclopentadiene dimer; and (8) adding the methyl cyclopentadiene dimer into a rectifying column T3, rectifying under reduced pressure, and removing light fractions on the tower top and heavy fractions at the tower bottom to obtain the methyl cyclopentadiene dimer on a side line. The method is simple and suitable for industrial application; and the purity of a product is not less than 98 percent.

The invention discloses a complex based on divalent rare earth as center ion, which is represented in a general formula as L 2 LnL', wherein Ln means center ion that is bivalent ion of the rare earth metal, which is selected from one of samarium, europium, and ytterbium in the lanthanides; L and L' mean two ligands, L is selected from one of 2,6-butylated hydroxytoluene, di-trimethyl silylamino, dimethylcyclo-pentadienyl, N,N'-dimethylamino bridged bisphenol; L' is a complex solvent, which is selected from one of tetrahydrofuran and glycol dimethyl ether. The complex has the advantages of being used as a reaction catalyst to additionally synthesize guanidine by the amine and carbodiimide, catalyzing the amine and carbodiimide in an extremely high activity to additionally react at a moderate temperature, having wide adaptability for the reaction substrate, showing the extremely high activity for the amine in aromatic series and the fat, and conducting reaction without the solvent.

The invention relates to a method for preparing dicyclopentadiene and dimethylcyclopentadiene. The method adopts C9-C19 fractions of byproducts of ethylene cracked from petroleum as raw materials. The method comprises the following processes: 1, the raw materials are subjected to reduced pressure rectification separation in a rectification tower, a concentrated dicyclopentadiene material is obtained from the tower top, and a concentrated dimethylcyclopentadiene material is obtained from the tower bottom; 2, the tower top material obtained in process 1 enters a depolymerization rectification tower for depolymerization rectification, and cyclopentadiene is obtained from the tower top; 3, the tower bottom material obtained in the process 1 enters the depolymerization rectification tower for depolymerization rectification, cyclopentadiene is obtained from the tower top, and methylcyclopentadiene is obtained from the lateral line; 4, cyclopentadiene obtained in process 2 and cyclopentadiene obtained in process 3 undergo a thermal dimerization reaction to obtain dicyclopentadiene; and 5, methylcyclopentadiene obtained in the process 3 undergoes the thermal dimerization reaction to obtain dimethylcyclopentadiene. The method of the invention has the following advantages: dimerization reactions in the depolymerization product rectification separation process are substantially reduced; and high purity methylcyclopentadiene can be directly obtained after the depolymerization product separation, so the refinement and the purification of above depolymerized products are avoided.

The invention discloses a liquid coal combustion improver which is prepared from the following raw materials in proportion: carboxymethyl ferrocene, methylcyclopentadienyl manganese tricarbonyl, acerdol, cerous nitrate, aluminum nitrate, magnesium nitrate, tween and absolute ethyl alcohol. In the liquid combustion improver, the carboxymethyl ferrocene and the methylcyclopentadienyl manganese tricarbonyl are taken as combustion-supporting synergist, the acerdol, the cerous nitrate and the magnesium nitrate are taken as oxidant, the aluminum nitrate is taken as adsorbent, the tween is taken as penetration dispersant, and the absolute ethyl alcohol is taken as complex solubilizer. When the combustion improver is added into coal, chemical substances with macromolecular structures in raw coal can be destroyed; when the liquid coal combustion improver is reacted with coal powder under the action of a high temperature, bonds among connecting structure units of the coal powder can be ruptured, so that the reaction activity of the coal powder can be enhanced, the thermolysis process of the coal powder can be promoted, active oxygen and oxygen gas can be released, the function of catalysis and combustion support can be achieved, pyrolysis products can increase, and the combustion performance can be better; and by virtue of catalytic cracking on the coal, the coal powder can be quickly and completely combusted, so that the aims of increasing coal powder quantity and decreasing coke ratio can be achieved.

The invention relates to an environment-friendly energy-saving super-gasoline accelerator which is characterized by comprising 10-30% of motor-process promoter, 20-30% of alkyl phenol octane promoter, 5-10% of octadecyl phosphate, 4-8% of dimethylbenzene, 10-15% of cycloalkane and 10-15% of combustion improver. The environment-friendly energy-saving super-gasoline accelerator enhances the gasoline octane number by adding the methyl tert-butyl ether or methyl cyclopentadiene tricarbonyl manganese, solves the problem of that the automobile exhaust generates PM2.5 and pollutes the environment, and is suitable to be added into various types of gasoline.

The invention relates to a circulating steam distillation apparatus and a process for extracting methylcyclopentadienyl manganese tricarbonyl by the aid of the apparatus. The apparatus comprises a distillation kettle, a condenser and an oil and water separator, a heating system and a stirrer are arranged in the distillation kettle, a condensed water overflow pipe is connected between the distillation kettle and the oil and water separator, a lower discharge outlet of the oil and water separator is connected with a liquid seal pipe, and a pressure balancing pipeline is connected among the liquid sealing pipe, the oil and water separator and the condenser. The process includes adjusting the height of the liquid seal pipe and the height of the condensed water overflow pipe; filling materials and water into the distillation kettle; stirring, distilling and cooling the materials; and performing reflux and separation of water and oil by the oil and water separator. The device and the process have the advantages that useful components such as the MMT (methylcyclopentadienyl manganese tricarbonyl) can be recovered to the greatest extent, high methylcyclopentadienyl manganese tricarbonyl recovery rate can be realized, the difficult problem of coking of a distillation kettle used in a traditional rectifying process is avoided, and large quantities of fresh water and energy can be saved as compared with an existing steam distillation process.

The invention discloses a highly performance fuel combustion adjuvant and process for preparation, wherein the combustion adjuvant comprises low grade alkyl teriarybutyl ether, methyl cyclopentadiene manganese tricarbonyl, butoxy benzene, C3-5 lower alcohol, hexadecyl benzene sulfonic acid potassium, petroleum zinc sulphonate, petroleum magnesium sulphonate, dichlor potassium alkyl, ferrocene and 200# solvent oil for the rest. The combustion adjuvant is prepared through stirring and mixing at a finite temperature in sequences.

The invention discloses methanol gasoline for a vehicle and a preparation method thereof. The methanol gasoline is prepared from the following raw materials in parts by weight: 60-70 parts of methanol, 15-25 parts of 90# gasoline, 10-15 parts of dipropylene glycol methyl ether acetate, 5-10 parts of tert amyl methyl ether, 5-10 parts of dimethyl carbonate, 4-8 parts of diethylene glycol dimethyl ether, 3-6 parts of 2,2-dimethoxypropane, 1-2 parts of ferrocene, 0.5-1.5 parts of methyl cyclopentadiene tricarbonyl manganese, 0.8-1.4 parts of 2,5-di-tert-butyl hydroquinone, 0.4-0.8 part of glycerol monolaurate, 0.5-1 part of sodium petroleum sulfonate, 0.3-0.6 part of N-Polyoxyethylated-N-tallow-alkylamine, 5-10 parts of wood tar, 3-6 parts of isopropanol, 2.5-4.5 parts of fish meal, 2-3 parts of bone meal, 1-2 parts of stearic acid and 0.5-1 part of urotropine. The methanol gasoline disclosed by the invention is favorable in combustion characteristic, high in utilization ratio, favorable in anti-detonating quality, low in corrosivity, high in safety and reliability, energy-saving and environment-friendly, can be used instead of any of 90#, 93#, 97# and 98# gasoline for a vehicle, is novel environment-friendly alternative fuel, and can reduce pollutant emission and carbon emission; and the combustion emission of the methanol gasoline meets the standards in Europe and America. The methanol gasoline has excellent economic benefits and far-reaching social benefits.

The invention relates to a method for preparing cyclopentane from an ethylene cracking C9 heavy fraction. The method comprises the following steps: 1, preheating the ethylene cracking C9 heavy fraction, and depolymerizing to obtain a gas phase material; 2, depolymerizing the gas phase material to obtain crude methylcyclopentadiene and crude cyclopentadiene at the tower top; 3, carrying out monomer separation refining of the crude cyclopentadiene and the crude methylcyclopentadiene to obtain high-purity cyclopentadiene at the tower top; and 4, mixing the high-purity cyclopentadiene with a solvent and hydrogen, allowing the obtained mixture to enter a fixed bed catalyst bed layer, and carrying out a catalytic hydrogenation reaction. The preparation method provided by the invention, which adopts the cracking C9 heavy fraction as a depolymerization raw material, has the advantages of low cost, low equipment requirement, and suitableness for large-scale production; and in the invention, the cyclopentadiene yield is greater than 95%, the cyclopentadiene conversion rate is about 100%, the cyclopentane selectivity is greater than 99%, the cyclopentane yield is greater than 95%, and the purity of the obtained cyclopentane is greater than 99%.

The invention relates to a non-bridge mono/bi-nuclear metallocene compound and a relative application olefin polymerization catalyst technical field. The compound contains 1-(4-methyl)-phenyl-2, 3, 4, 5-tetramethyl cyclopentadienyl-(2, 4, 6-tertiary butyl phenoxy)-titanium chloride, and (3, 3', 5, 5'-quattuor isopropyl-4, 4'-biphenyl oxygen)-bi-[1-(4-methyl)-phenyl-2, 3, 4, 5-tetramethyl cyclopentadienyl-titanium dichloride] or the like. The metallocene compound can be used as main catalyst, while alkyl aluminum is used as promoter, or organic boron compound and alkyl aluminum are assembled into a promoter system, to catalyze and synthesize high-molecular-weight atactic polypropylene with improved catalysis activity and polymer molecular weight, which can catalyze the polymerization of vinyl and alpha-olefin, to obtain the polymer with suitable molecular weight in narrow distribution and high co-monomer content.

A method is provided for forming iridium oxide (IrOx) nanotubes. The method comprises: providing a substrate; introducing a (methylcyclopentadienyl)(1,5-cyclooctadiene)iridium(I) precursor; introducing oxygen as a precursor reaction gas; establishing a final pressure in the range of 1 to 50 Torr; establishing a substrate, or chamber temperature in the range of 200 to 500 degrees C.; and using a metalorganic chemical vapor deposition (MOCVD) process, growing IrOx hollow nanotubes from the substrate surface. Typically, the (methylcyclopentadienyl)(1,5-cyclooctadiene)iridium(I) precursor is initially heated in an ampule to a first temperature in the range of 60 to 90 degrees C., and the first temperature is maintained in the transport line introducing the precursor. The precursor may be mixed with an inert carrier gas such as Ar, or the oxygen precursor reaction gas may be used as the carrier.

The invention relates to a cleaning gasoline with advantages of fog and haze treatment, environmental protection and energy saving, wherein the components comprises 30-40% of alkylated gasoline, 15-20% of direct distillation gasoline, 20-25% of aromatic hydrocarbon, 20-25% of carbon olefin, 2-5% of a metal purification agent, and 0.05% of a MG2000 gasoline accelerator. In the prior art, a large amount of PM2.5 can be produced after the gasoline produced by using methyl tert-butyl ether (MTBE) and methylcyclopentadienyl manganese tricarbonyl (MMT) as the additive is burned so as to pollute the environment. According to the present invention, the problem in the prior art is solved, and the obtained cleaning gasoline is particularly suitable for the gasoline engine combustion.

The invention relates to a method of separating cyclopentadiene and methyl cyclopentadiene from a mixture with ingredients of dicyclopentadiene and dimethyl cyclopentadiene. The method is particularly suitable for purifying and separating the cyclopentadiene and methyl cyclopentadiene from ethylene byproduct C9 or crude cyclopentadiene. Ethylene byproduct C9 or crude dicyclopentadiene that contains dicyclopentadiene and dimethyl cyclopentadiene is put into a high-temperature cracking reactor that is arranged in a tower boiler of a rectifying tower 1; pyrolyzed mixture gas under high temperature runs upwards through the rectifying tower to lead distillate that contains the cyclopentadiene and the methyl cyclopentadiene to be separated at the top of the tower; the mixture distillate of the cyclopentadiene and methyl cyclopentadiene that is extracted at the top of the rectifying tower 1 enters a rectifying tower 2, and the cyclopentadiene is extracted from the top of the tower and the methyl cyclopentadiene is extracted from the bottom of the tower.