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JPH09291107A |
To obtain a metallocene catalyst system which can give an olefinically unsaturated polymer having a high molecular weight in high productivity by using a specified transition metal metallocene complex, a compound which forms metallocene ...
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JP2673907B2 |
This invention relates to a process for isomerization of a hydrocarbon feed stream, by passing said feed stream prior to isomerization over a first shape-selective separatory molecular sieve having a pore size of 4.5 x 4.5A or smaller, t...
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JP2670869B2 |
Poly-n-butene is prepared from a mixed C4 hydrocarbon feedstream containing less than about 5 wt.% isobutylene using an AlCl3-HCl catalyst system wherein the HCl is introduced separately into the feedstream to form organochloride in the ...
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JP2670868B2 |
Poly-n-butene is prepared from a mixed C4 hydrocarbon feedstream containing less than about 5 wt.% isobutylene using an organo-aluminum chloride-HCl catalyst system wherein the HCl is introduced separately into the feedstream to form org...
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JP2668265B2 |
Catalytic process for the dimerisation or codimerisation or oligomerisation, these being in particular selective, of olefins, carried out under pressure, in a reaction zone (1) containing a bed of solid catalyst in which is immersed a pl...
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JPH09262480A |
To efficiently produce 1-hexene useful as stock comoononer of linear low density PE from ethylene with high selectivity by using a catalyst for low polymn. of olefin produced from a chromium compd., aluminoxane and an imido compd. This c...
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JPH09241661A |
To obtain a lubricating oil having at least 120 viscosity index and ≤-45°C pour point by oligomerizing a mixed feedstock containing at least a heptene. This lubricating oil is obtained by oligomerizing an olefin feedstock comprising a...
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JPH09509207A |
PCT No. PCT/EP95/00667 Sec. 371 Date Oct. 22, 1996 Sec. 102(e) Date Oct. 22, 1996 PCT Filed Feb. 22, 1995 PCT Pub. No. WO95/22516 PCT Pub. Date Aug. 24, 1995Oligomerization degree of olefins may be controlled by employing mixed molecular...
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JPH09235568A |
To obtain a high-quality lubricating oil by oligomerization, using a specific catalyst, of a feedstock produced from inexpensive and readily available raw materials. This lubricating oil having a viscosity index of ≥120 and a pour poin...
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JPH09508940A |
This invention relates to a process for the converting ethylene to a mixture of 1-olefins by (a) feeding ethylene through an oligomerization catalyst bed to form an oligomer predominating in C2-C6 olefins and (b) feeding the oligomer, op...
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JP2649412B2 |
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JP2638538B2 |
PURPOSE: To efficiently obtain a synthetic basestock with excellent thermal stability at a high yield by bringing a specific cationic catalyst into contact with a specific α-olefin feedstock under oligomerization conditions thereby with...
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JPH09194864A |
To produce a synthetic lubricant by a process for forming olefin oligomers in high yields. An 8-16 C α-olefin monomer is oligomerized in the presence of a boron trifluoride catalyst and a linear alcohol promoter to produce a material fo...
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JPH09183984A |
To provide a process for trimerizing (e.g. ethylene into 1-hexene) or oligomerizing an olefin at high selectivity and productivity in the presence of a min. amt. of or in the absence of a solvent. An olefin is oligomerized by bringing it...
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JP2617214B2 |
PURPOSE:To obtain odorless isoparaffin solvents having low ultraviolet absorption and a light lubricating oil by subjecting a B-B fraction to oligomerization in the presence of a catalyst, primarily hydrogenating and desulfurizing a poly...
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JP2613976B2 |
The present invention relates to a hydrocracking and isomerization process for preparing low pour point middle distillate hydrocarbons and lube oil from a hydrocarbonaceous feedstock boiling above about 600 DEG F. by contacting the feeds...
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JPH09136847A |
To selectively isomerize an olefin compound, esp. n-butene, by using silicalite subjected to specific pretreatment as a catalyst. (A) A high-purity steam or steam diluted with an inert gas (e.g. nitrogen) is passed on (B) silicalite at 3...
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JP2607934B2 |
A process for the production of oligomers in which at least one monoolefin containing from 2 to 8 carbon atoms is placed in contact with a catalyst based on modified mordenite. ?>This mordenite has been obtained by the following succes...
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JPH0987205A |
To obtain a highly active catalyst excellent in dimer selectivity, useful esp. for propylene dimerization, by mutual contact between a specific nickel compound, a specific phosphorus compound, an organoaluminum compound and a sulfonic ac...
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JPH0924280A |
To provide a catalyst composition having the two-phase catalytic action, and an olefin oligomerization process using the catalyst composition. This catalyst composition contains at least one halogenated lithium, at least one halogenated ...
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JP2573500B2 |
Olefins with between 4 and 24 and preferably between 10 and 20 carbon atoms are selectively dimerized by using zeolite catalysts in acid form which are partially exchanged with salts of metals having a valency of two or more.
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JP2569319B2 |
A process for producing gasoline of improved octane number comprises oligomerising one or more alkenes, and optionally one or more alkanes, having from 2 to 6 carbon atoms over either silicalite (whether stabilized or not) or zeolite, op...
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JP2562187B2 |
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JPH08323207A |
PURPOSE: To provide technique converting lower olefin generated by refining petroleum to a low polymer high in value added. CONSTITUTION: A catalyst for the low polymerization of olefin is composed of one or more kinds of oxides selected...
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JP2557440B2 |
A fluidized bed catalytic process for conversion of light olefinic gas feedstock containing ethene to produce hydrocarbons rich in C5<+> liquids, comprising the steps of maintaining a fluidized bed of zeolite catalyst particles in a turb...
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JP2549428B2 |
The invention concerns a process in which monoolefins are used to alkylate isoparaffins in the presence of an HF catalyst. An olefinic feed (14) containing dienes is selectively hydrogenated in zone (2) to reduce its diene content, and u...
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JP2544917B2 |
A process for the catalytic reforming of a hydrocarbon charge wherein the charge passes successively through at least two catalyst beds, the first one being a bed of a first catalyst whose carrier contains platinum, rhenium and at least ...
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JP2539234B2 |
New ferrierites are disclosed as well as their process of manufacture. According to the invention, these new ferrierites are characterized by: (a) The following approximate formula: Mx/n(TIIIO2)x(SiIVO2)36-x wherein TIII is at least one ...
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JPH08253774A |
To attain a narrow distribution of the degree of oligomerization by using as a starting material a monomer/dimer/trimer mixture obtained by reacting an α,ω-diolefin in the presence of an organoaluminum compound. An organoaluminum compo...
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JP2527583B2 |
The ferrizeolite according to the invention is characterised by a) the following approximate chemical formula: M2/nO.Fe2O3.xSiO2 where M denotes a proton and/or a metal cation n is the valency of the said cation x is a number between 40 ...
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JPH08198780A |
PURPOSE: To obtain a linear α-olefin in a high 4-36C α-olefin selectivity in a high conversion yield by the oligomerization of an unsaturated aliphatic hydrocarbon using a specific catalyst in an inert solvent at a specific temperature...
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JP2520723B2 |
A process for producing methylnaphthalenes is disclosed, comprising subjecting a fraction containing at least 50% by volume of components within the boiling range of 195 DEG -215 DEG C., which is obtained by distilling a raffinate result...
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JP2520724B2 |
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JP2520722B2 |
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JP2520725B2 |
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JPH08505888A |
The invention concerns a process for producing synthetic oils, wherein olefinic hydrocarbons are polymerized to form an oily product having a high viscosity index and a low pour point. According to the invention, higher linear alpha-olef...
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JPH08505848A |
The invention relates to the oligomerization of olefins or olefin mixtures, in particular long-chain hydrocarbon mixtures containing 6-20 carbon atoms or butenes, or mixtures of these said olefins, by means of a BF3/cocatalyst complex, t...
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JP2500256B2 |
PURPOSE: To provide a compd. which is suitable for the preparation of zeolite SSZ-26. CONSTITUTION: This compd. is N,N,N',N'-tetramethyl [4,3,3,0] propellane8,11- diamine and its alkyl amonium cation, i.e., N,N,N',N'-hexamethyl [4,3,3,0]...
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JPH0819426B2 |
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JPH0815558B2 |
A process for the preparation of alpha olefin oligomers having predominantly terminal unsaturation using a catalyst system comprising an alkyl aluminum halide component and a second component comprising at least one zirconium compound, p...
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JPH0816228B2 |
The process for preparing a high-octane gasoline involves catalyzing a light hydrocarbon containing one or more C2-C7 paraffins and/or C2-C7 olefins with a crystalline aluminogallosilicate with the skeleton comprised of SiO4, AlO4 and Ga...
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JPH0834749A |
PURPOSE: To obtain a purified olefin capable of providing a polyolefin in high yield by industrially advantageously purifying ethylene or propylene for polymerization, especially that obtained by the fluid catalytic cracking of a heavy o...
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JPH086096B2 |
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JPH083099B2 |
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JPH07330633A |
PURPOSE: To suppress production of a higher olefin and wax as by-products and obtain a chain α-olefin useful as a comonomer for modifying linear low- density PE, a plasticizer, etc., by reacting ethylene with a specific organic ester co...
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JPH07330634A |
PURPOSE: To suppress production of a higher-α-olefin and wax as by-products and obtain the substance useful as a comonomer for modifying linear low-density PE and a plasticizer by reacting ethylene with a specific organic ester compound...
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JPH07330635A |
PURPOSE: To suppress production of a low-molecular α-olefin and a higher wax as by-products and obtain a long-chain α-olefin useful as a raw material for surfactants and higher alcohols, etc., by reacting ethylene with a specific organ...
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JPH07116449B2 |
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JPH07309786A |
PURPOSE: To provide a process for producing a low-branch olefin oligomer having low side chain content in high yield and selectivity by oligomerizing an olefin. CONSTITUTION: The process for the production of a low-branch olefin oligomer...
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JPH07310078A |
PURPOSE: To produce an oligomer mainly comprising a dimer and a trimer in a very high yield by bringing an olefin monomer into contact with boron trifluoride and a hydroxy carbonyl promotor. CONSTITUTION: The objective oligomer is obtd. ...
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