33 results about "Tetralin" patented technology

The present invention is a method for removing sulfur from liquid hydrocarbon feedstocks and for performing hydrogenation reactions in sulfur-contaminated feedstocks, including the hydrogenation of naphthalene in the presence of sulfur compounds, using catalysts or adsorbents comprising metal oxide nanowires decorated with reduced catalytically-active metal particles. In a preferred embodiment, the adsorbent comprises zinc oxide nanowires decorated with catalytically-active metals selected from nickel, cobalt, molybdenum, platinum, palladium, copper, oxides thereof, alloys thereof, and combinations thereof. In some embodiments, the sulfur is removed through a desulfurization process without an external hydrogen supply. The process is effective for the removal of sulfur from diesel fuels and liquid fuel streams, and for deep desulfurization of natural gas streams. The process is also effective for the selective hydrogenation of naphthalene to tetralin in the presence of sulfur compounds.

A polypropylene based composition comprising: A) from 40 wt% to 85 wt% of a first heterophasic propylene ethylene copolymer (HECO1) B) from 15 wt% to 60 wt%; of a second heterophasic propylene ethylene copolymer (HECO2) having: i) fraction soluble in xylene at 25°C ranging from 20.0 wt% to 38.0 wt%; ii) the melt flow rate (230°C / 5 kg.. ISO 1133) ranging from 0.2 g / 10min to 4.0 g / 10min; iii) intrinsic viscosity, measured in tetralin, of the fraction soluble in xylene at 25°C ranging from 5.7 dl / g to 9.2 dl / g.

A polyolefin composition comprising: A) from 85 wt% to 99.0 wt%;of a propylene homopolymer B) from 1.0 wt% to 15.0 wt%; of a propylene, ethylene copolymer composition having: iii) intrinsic viscosity, measured in tetralin, of the fraction soluble in xylene at 25°C ranging from 5.7 dl / g to 9.2 dl / g; propylene, ethylene copolymer composition component B) comprises: b1) from 27 wt% to 40 wt%; of a propylene homopolymer having a melt flow rate MFR1 (230°C / 2.16 kg. ISO 1133) ranging from 62.0 g / 10min to 100.0 g / 10min; b2) from 27 wt% to 40 wt% of a propylene homopolymer having a melt flow rate MFR2 (230°C / 2.16 kg. ISO 1133) lower than MFR1; b3) from 20 wt% to 46 wt% of a propylene ethylene copolymer having a content of ethylene derived units ranging from 18.0 wt% to 48.0 wt%.

The invention discloses a kind of organic electroluminescent material and organic electroluminescent device and application, the organic electroluminescent material can be used as the functional layer of organic electroluminescent device, with 9 alkyl 9 phenyl 9H fluorene as parent nucleus, directly connected to arylamine on parent nucleus, one of the side chains of arylamine is aryl or heteroaryl, and the other side chain is 1,1,4,4 tetramethyl 1,2,3,4 tetralin derivative, compared to other compounds, the organic electroluminescent material compound of the present invention has small lateral leakage, can reduce adjacent pixels in device and produce lateral leakage current, cause adjacent pixels to be lit, produce lateral crosstalk between adjacent sub-pixels, affect the phenomenon of color display. The organic electroluminescent material of the present invention is as the functional layer of organic electroluminescent device, can solve the problems such as color display and picture display abnormality affected by OLED display device lateral leakage.

The application provides a system and method for photocatalytic production of tetrahydrocycloheptane based on reactive distillation, and relates to the technical field of catalytic chemistry. The system comprises a backpack reactive distillation device, a solvent recovery and product purification column, and multiple heat exchangers. The backpack reactive distillation device comprises a distillation column and N photo reactors connected with the distillation column. The raw material norbornadiene, the side sampling stream of the distillation column, and the circulating stream taken from the bottom of the solvent recovery and product purification column are respectively introduced into each photo reactor from three paths. The reflux stream of the distillation column and the outlet streams of the N photo reactors are introduced into the distillation column. The crude product taken from the bottom of the distillation column is introduced into the solvent recovery and product purification column, the solvent recovery and product purification column separates and purifies tetrahydrocycloheptane and recovers the solvent, and high-efficiency and high-purity preparation of tetrahydrocycloheptane is realized.

The invention discloses a preparation method of a high-efficiency hydrogenation catalyst, which comprises the following steps: preparing silicate by using tetrapropylammonium hydroxide as a template agent and tetraethoxysilane as a silicon source, and carrying out alkali treatment to obtain a hollow silicate material; 3-aminopropyltriethoxysilane is adopted to treat the hollow silicate carrier, and a functionalized hollow silicate material is obtained; the preparation method comprises the following steps: loading cerium by taking a functionalized hollow silicate material as a carrier, and then adding into a mixed metal salt solution of nickel nitrate hexahydrate and titanium sulfate for coprecipitation treatment to obtain a catalyst precursor; mixing ethanol and tetrahydronaphthalene, adding sodium borohydride, stirring until the sodium borohydride is dissolved to obtain a mixed solvent, adding the catalyst precursor, transferring the mixed solution into a high-pressure kettle, and sealing to obtain the catalyst. The self-made hollow silicate material is adopted as the carrier, cerium, nickel and titanium are loaded in sequence, the prepared catalyst is large in specific surface area and high in catalytic activity, and the purity and yield of gamma-butyrolactone are effectively improved when the catalyst is used in gamma-butyrolactone synthesis.

A polypropylene composition comprising: A) from 65.5% to 82.5% by weight of a propylene homopolymer; b) from 17.5% to 34.5% by weight of a propylene ethylene copolymer having an ethylene derived unit content ranging from 38.2% to 48.3% by weight; the polypropylene composition has: i) a xylene soluble fraction at 25 DEG C ranging from 18.0% to 32.3% by weight; ii) the ethylene derived unit content in the fraction soluble in xylene at 25 DEG C ranging from 34.6% to 42.0% by weight, measured by 13C NMR; iii) a melt flow rate MFR comprised between 12.0 g / 10 min and 38.0 g / 10 min, measured according to ISO 1133 at 230 DEG C and a load of 2.16 kg, iv) the fraction soluble in xylene at 25 DEG C, measured in tetralin at 135 DEG C, has an intrinsic viscosity ranging from 2.2 dl / g to 3.5 dl / g, the sum of the amount of A) and the amount of B) being 100% by weight.

The invention discloses 1, 1-bis (4-hydroxybenzene)-tetrahydronaphthalene as well as a preparation method and application thereof, and belongs to the technical field of organic synthesis. The invention provides a preparation method of 1, 1-bis (4-hydroxybenzene)-tetrahydronaphthalene, and the preparation method comprises the following steps: carrying out a melting reaction on 1-tetralone and phenol in the presence of an inert gas atmosphere and a catalyst, and carrying out separation and purification to obtain the 1, 1-bis (4-hydroxybenzene)-tetrahydronaphthalene. According to the preparation process provided by the invention, the homogeneous phase characteristic of a melting reaction system is utilized, reactants are in full contact and are subjected to directional condensation, the product can be purified only through simple separation and purification, the synthesis and purification difficulty of the product is greatly reduced, the synthesis yield can reach 85% or above, and the purity reaches 88% or above. The large-scale preparation of the 1, 1-bis (4-hydroxybenzene)-tetrahydronaphthalene is successfully realized for the first time, the molecular design space of a polyaryletherketone high-performance material is widened, and the method has a wide application prospect in integrated circuit boards.

The present invention is a method for removing sulfur from hydrocarbon feedstocks and for performing hydrogenation reactions in sulfur-contaminated feedstocks, including the hydrogenation of naphthalene in the presence of sulfur compounds, using catalysts or adsorbents comprising metal oxide nanowires decorated with reduced catalytically-active metal particles. In an exemplary embodiment, the adsorbent comprises zinc oxide nanowires decorated with catalytically-active metals selected from nickel, cobalt, molybdenum, platinum, palladium, copper, oxides thereof, alloys thereof, and combinations thereof. In some embodiments, the sulfur is removed through a desulfurization process without an external hydrogen supply. The process is effective for the removal of sulfur from diesel fuels and liquid fuel streams, and for deep desulfurization of natural gas streams. The process is also effective for the selective hydrogenation of naphthalene to tetralin in the presence of sulfur compounds.

The application discloses an optimization method for calibrating wall-attached oil film by refractive index matching method, and belongs to the technical field of diesel engines. In the application, the order of magnitude of the wall-attached oil film thickness is micron, the calibration solution consistent with the refractive index of the test fuel is obtained by matching dodecane and tetrahydro naphthalene calibration solution, and the calibration precision is improved. In view of the non-uniformity of the oil film thickness during the calibration of the wall-attached oil film, the application judges the relationship between the gray value uniformity of the image and the preset uniformity threshold value, and removes the test working condition points with non-uniform thickness, so that the success rate of the calibration test is increased, and the calibration precision is improved. In view of the problem that the heavy components in the calibration solution evaporate in advance, the application compares the error between the test volume of the heavy components in the calibration solution and the known volume, removes the test working condition points affecting the precision, and improves the calibration precision. The application measures the oil film thickness of the oil spray impinging on the wall surface of the piston in the engine by the expression of the change relationship between the wall-attached oil film thickness and the scattered light intensity.

The present invention provides a kind of Beta / KCC-1 mesoporous composite molecular sieve and its preparation, hydrocracking catalyst and its preparation and application, wherein, the composite molecular sieve has a core-shell structure, including Beta molecular sieve and KCC-1 mesoporous material, KCC-1 mesoporous material is tightly wrapped outside the Beta molecular sieve, and the surface morphology of the composite molecular sieve is fibrous. The present invention compounds microporous material Beta molecular sieve and mesoporous material KCC-1, gives full play to the respective advantages of microporous material and mesoporous material, so that the composite molecular sieve has excellent diffusion performance, suitable acid properties, pore structure. The Beta / KCC-1 composite hydrocracking catalyst prepared using the composite molecular sieve as a carrier is a new catalyst material, and its catalytic activity and selectivity for the hydrocracking reaction of tetralin are relatively high, showing higher conversion rate, yield and product selectivity.

The application discloses a kind of zero addition main focus coal primary metallurgical coke and its preparation method, it is related to coal processing technical field.Primary metallurgical coke includes hydrogen donor and compound coal, compound coal is composed of 20wt%-50wt% lean coal and the rest coking coal, hydrogen donor includes the following weight parts components: 40 parts-60 parts tetrahydro naphthalene;20 parts-30 parts hydrogenated anthracene oil;2 parts-10 parts B 10 C3.By adding hydrogen donor, a large amount of free hydrogen can be provided in the plastic stage of high-volatility coking coal. The free radical fragments formed in the plastic stage of coking coal can still be stabilized in a large amount at the temperature of a large amount of pyrolysis and decomposition of lean coal, so that the plastic stage can be maintained for a long time, and finally the hot and cold strength of coke is significantly improved, so that it reaches the national first-class metallurgical coke standard. Moreover, the resource advantage of high-volatility coking coal can be fully utilized to promote the sustainable development of high-efficiency and low-cost coking industry.

The invention discloses synthesis of a tetrahydronaphthalene derivative and an intermediate thereof. The invention provides a synthesis method of a compound I. The synthesis method comprises the following step: in a solvent, in the presence of acid and a palladium catalyst, and in the presence of a reducing agent, carrying out hydroxyl reduction reaction on a compound IV to prepare the compound I. The preparation method has one or more of the following advantages: (1) good reaction selectivity, (2) mild and easy-to-control reaction, (3) high reaction yield, (4) good product purity, and (5) easily available materials, simple and convenient reaction operation, and good application prospect and value.

The invention discloses an ABS (Acrylonitrile Butadiene Styrene) resin composition as well as a preparation method and application thereof. The ABS resin composition comprises a graft copolymer, SAN resin and a functional group substituted tetrahydronaphthalene compound, wherein the functional group comprises one or more of an ester group, a carbonyl group, tertiary carbon, quaternary carbon, unsaturated carbon, secondary amine or tertiary amine. The content of the tetrahydronaphthalene compound substituted by the functional group in the ABS resin composition is 200 to 3200 ppm. The ABS resin composition has excellent mechanical properties.

A polypropylene resin composition comprising: A) from 10% to 70% by weight of a polypropylene homopolymer composition comprising: T1) from 30% to 70% by weight of a first propylene homopolymer, optionally containing up to 1.0% by weight of ethylene derived units, T1) from 30% to 70% by weight of a second propylene homopolymer, optionally containing up to 1.0% by weight of ethylene derived units, and T2) from 30% to 70% by weight of a third propylene homopolymer, optionally containing up to 1.0% by weight of ethylene derived units; the ethylene derived units have: an intrinsic viscosity (IV), measured in tetrahydronaphthalene at 135 DEG C, ranging from 8.0 dl / g to 13.0 dl / g; t2) from 30% to 70% by weight of a second propylene homopolymer, optionally containing up to 1.0% by weight of ethylene derived units having: an intrinsic viscosity (IV), measured in tetrahydronaphthalene at 135 DEG C, ranging from 2.0 dl / g to 4.5 dl / g; b) from 30% to 90% by weight of an organic material selected from the group consisting of: organic acid esters; adipate; a glycerate; a phosphate ester; paraffin; wax; and mineral oil; wherein the sum of the amount of component A) and the amount of component B) in wt% is equal to 100 wt%.

A prepolymer catalyst component for olefin polymerization, characterized in that it comprises: (a) a solid catalyst component comprising Ti, Mg, and a halogen, and a bidentate electron donor compound (BE), wherein the amount of the bidentate electron donor compound is such that the (BE) / Ti molar ratio ranges from 0 to 0.3; and (b) an ethylene (co)polymer, wherein the amount of the ethylene (co)polymer ranges from 0.1 to no more than 30 g per g of the solid catalyst component, and wherein the intrinsic viscosity measured in tetrahydronaphthalene at 135 °C is at least 3.0 dL / g; the prepolymer catalyst component also exhibits a porosity of 0.1 to 1 cm² as measured by the mercury method. 3 Within the range of / g, the prepolymerized catalyst exhibits high morphological stability and produces a small amount of fine particles.

The invention discloses a preparation method and application of SAN (Styrene Acrylonitrile Butadiene Styrene) resin and an ABS (Acrylonitrile Butadiene Styrene) resin composition containing the SAN resin The SAN resin contains a tetrahydronaphthalene compound substituted by a functional group, and the functional group comprises one or more of an ester group, a carbonyl group, tertiary carbon, quaternary carbon, unsaturated carbon, secondary amine or tertiary amine. When the tetrahydronaphthalene compound containing the functional group substituent is used for synthesizing SAN resin, a polymerization reaction can be initiated, the dosage of a traditional common initiator is reduced, the conversion rate is equivalent to that of a polymerization process using the traditional initiator, meanwhile, the molecular weight is increased, the cleanliness of the resin is increased, and the service life of the resin is prolonged. And the composition obtained by applying the prepared SAN resin has better mechanical properties.

A polypropylene composition (percentages being referred to the total A+B) comprising: A) from 80 to 94wt%, preferably from 82 to 92wt%, more preferably from 83 to 91wt% of polypropylene comprising more than 85wt% of propylene unit, and B) from 6 to 20wt%, preferably from 8 to 18%, more preferably from 9 to 17wt% of a copolymer of propylene and ethylene containing an average content of ethylene derived units from 20 to 50wt%, preferably from 25 to 45wt% and more preferably from 28 to 40wt%; said polypropylene composition being characterized by a fraction soluble in xylene at 25°C having an intrinsic viscosity in tetralin at 135°C of at least 80 dl / g.

A propylene polymer composition includes a propylene homopolymer (A) having an intrinsic viscosity [η] measured in a tetralin solvent at 135° C. in the range of 7 to 12 dl / g, a propylene polymer (B) having an intrinsic viscosity [η] in the range of not less than 0.21 dl / g and less than 0.54 dl / g, and having a proportion of a component eluted at a temperature of not more than −20° C. in TREF in the range of not more than 3.5 mass %, and a propylene polymer (C) having an intrinsic viscosity [η] in the range of not less than 0.54 dl / g and less than 2.6 dl / g, wherein the content of (A) is 0.5 to 47.5 mass %, the content of (B) is 5 to 95 mass % and the content of (C) is 2.5 to 85.5 mass %, based on the total of (A), (B) and (C).

The invention discloses a graft copolymer and a preparation method and application of an ABS resin composition containing the graft copolymer. The graft copolymer contains a functional group substituted tetrahydronaphthalene compound, wherein the functional group comprises one or more of an ester group, a carbonyl group, tertiary carbon, quaternary carbon, unsaturated carbon, secondary amine or tertiary amine. When the functional group substituted tetrahydronaphthalene compound is used for synthesizing a grafted copolymer, a polymerization reaction can be initiated, the dosage of a traditional common initiator is reduced, the conversion rate is equivalent to that of a polymerization process using the traditional initiator, meanwhile, the molecular weight of the grafted copolymer is increased, the cleanliness of resin is increased, and the service life of the resin is prolonged. And the composition obtained by applying the prepared grafted copolymer has better mechanical properties.

The present disclosures are directed to chlorinated tetralin compounds and pharmaceutical compositions.

The invention provides a coal desulfurizing agent as well as a preparation method and application thereof, and belongs to the technical field of coal desulfurization. The coal desulfurizer is prepared from metal chloride and an organic solvent, the mass ratio of the metal chloride to the organic solvent is (0.0020-0.0055): 1; the organic solvent comprises tetrahydronaphthalene and normal hexane. Coal and the coal desulfurizer are mixed and then subjected to microwave treatment, post-treatment and drying, and desulfurized coal is obtained. The coal desulfurizer disclosed by the invention is combined with microwave treatment to desulfurize coal, so that the reduction degree of the sulfur content is not less than 35%, the use of organic solvents can be greatly reduced, the treatment cost and the risk of environmental pollution are reduced, and the requirements of green chemistry are met.

The present application relates to a catalyst for preparing beta-phenethyl alcohol by hydrogenation of styrene, in particular to a preparation method and application of a catalyst for preparing beta-phenethyl alcohol by hydrogenation of epoxyphenyl ethane, comprising the following steps: preparing a solution of nickel acetate, ammonium molybdate, ZrOCl2.8H2O and niobium oxalate; adding a titanium-aluminum oxide carrier into the solution, stirring, and impregnating; adding potassium hydroxide to generate a precipitate, washing with deionized water, drying, and calcining to obtain the catalyst product; the titanium-aluminum oxide carrier is prepared by stirring tetrabutyl titanate, triethylamine, mesoporous aluminum oxide and low-carbon alcohol, suction filtering, air-drying at room temperature, and calcining in an air atmosphere; the application of the catalyst mixes epoxyphenyl ethane, solvent, hydrogen and hydrogen dissolving agent through a fixed bed reactor containing the catalyst, adjusts the reaction conditions of the fixed bed reactor, makes the epoxyphenyl ethane completely react, generates beta-phenethyl alcohol, has high reaction conversion rate, good reaction selectivity, low energy consumption, and saves device investment.

The present invention relates to a process for preparing a compound of formula (I), a stereoisomer, a salt, a hydrate or a solvate thereof, (II) comprising the sulfinulation step of a compound of formula (IV) to produce a compound of Formula (II); (IV) wherein: R1 and R2 are as defined in the claims, wherein said sulfinilation step is carried out in the presence of a solvent selected from the group comprising benzene, toluene, ethylbenzene, xylene, chlorobenzene, bromobenzene, fluorobenzene, anisole, nitrobenzene, tetralin, dichlorobenzene, trimethylbenzene, ethyl acetate, propyl acetate, butyl acetate, propanol, butanol, 2-methyltetrahydrofuran, diethyl ether, methyl tert-butyl ether, cyclopentyl methyl ether, dichloromethane, tetrachloromethane, pentane, hexane, heptane, cyclohexane, decalin and mixtures thereof.

The application belongs to the technical field of bio-chemical industry, and particularly discloses a method for synthesizing (S)-1-tetralinamine by in-vitro multi-enzyme cascade catalysis of tetralin. The multi-enzyme cascade system is composed of non-specific peroxidase, galactose oxidase and ω-transaminase, the substrate is tetralin, and the product is (S)-1-tetralinamine. First, the non-specific peroxidase is used to catalyze tetralin and hydrogen peroxide to generate tetralin alcohol, the tetralin alcohol is subjected to the action of the galactose oxidase to generate tetralin ketone, and the tetralin ketone is subjected to the action of the ω-transaminase to generate (S)-1-tetralinamine. Compared with the prior art, the synthesis method provides a new in-vitro multi-enzyme catalysis way for synthesizing (S)-1-tetralinamine from tetralin without expensive cofactors, the process is safe and green, the production cost can be significantly reduced, a new green way is developed for converting large-volume aromatic hydrocarbons into high-value amine organic compounds, and the method has important industrial application value.

Embodiments of the present disclosure related carbon-based structural unit (CSU). The CSUs include a cured composition. The cured composition includes about 1% to about 80% pyrolysis char (PC), about 0.1% to about 35% coal deposits, extracts, and residual tar (CDER) materials, and about 0% to about 99% pitch material. The CDER material includes a tetralin insoluble (TI), a deposit (De), a distillation residue (DR), and a residue (Re). A method of making a composition includes extracting a coal extraction residue (CER) from coal; fabricating pyrolysis char (PC) and a coal deposits, extracts, and residual tar (CDER) material from the CER; sieving and milling the PC into milled PC; and mixing the pyrolysis char (PC) and the CDER material to form a composition..

A polypropylene-based resin composition contains:a component (A1) being a propylene homopolymer or a copolymer of propylene and a 30 wt % or less α-olefin having 2 or 4 to 8 carbon atoms, having a intrinsic viscosity of more than 20 dl / g, as measured in a tetralin solvent at 135° C.; anda component (A2) being a polymer selected from the group consisting of(A2-1) a propylene homopolymer,(A2-2) a random copolymer of propylene and an α-olefin having 2 or 4 to 8 carbon atoms,(A2-3) a block copolymer of propylene and an α-olefin having 2 or 4 to 8 carbon atoms, anda combination of the (A2-1), (A2-2), and (A2-3).The resin composition has a content of the component (A1) of 0.1 to 10 wt % and a content of the component (A2) of 99.9 to 90 wt % based on the total amount of the component (A1) and the component (A2). The component (A2) has a melt flow rate (MFR) (230° C., load: 2.16 kg) of 1 to 500 g / 10 min.

The present disclosures are directed to chlorinated tetralin compounds and pharmaceutical compositions.

The present disclosure relates to a method for preparing tetrahydronaphthalene compounds and intermediates thereof. Specifically, the method of the present disclosure can convert S-configuration intermediates generated in the synthesis of tetrahydronaphthalene compounds into available intermediates or desired compounds, achieve high recovery efficiency, effectively improve the utilization rate of raw materials, and greatly reduce production costs.