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JPH0639427B2 |
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JPH06145077A |
PURPOSE: To provide a process for producing 2,6-diethylnaphthalene in relatively high naphthalene conversion and relatively high 2,6-diethylnaphthalene yield by using polyethylbenzene in combination with ethylene as an ethylation agent. ...
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JPH0635395B2 |
Syngas is subjected to Fischer-Tropsch synthesis over a special Co/Zr/SiO2 catalyst and the C20+ fraction of the synthesized product is converted into linear C10-C20 olefins by mild thermal cracking.
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JPH0628706B2 |
A composite having host-guest-intercalathe, molecular sieve and/or catalytic activity composed of a porous support of a selection from a metal, an inorganic material or a polymeric material and impregnated with a fine particle of a selec...
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JPH06503065A |
A catalyst for use in acid catalyzed chemical conversion processes such as hydrocarbon conversion processes comprises zeolite beta and a dealuminated Y zeolite having an overall silica-to-alumina mole ratio greater than 6.0, preferably L...
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JPH0624965B2 |
A novel crystalline aluminophosphate of the molecular sieve type, denominated AlPO4-34, is prepared by hydrothermal synthesis from reactive sources of aluminum and phosphorus and an organic templating agent.
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JPH0687768A |
PURPOSE: To provide a production method capable of high selectively producing 4-methylbiphenyl and 4,4'dimethylbiphenyl each in a high yield, of readily regenerating the catalyst without requirement for a special aftertreatment of the re...
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JPH0620556B2 |
Catalyst composition is provided which is prepared by impregnating high surface area, which pore volume alumina with at least one magnesium compound convertible to the oxide, and, optionally, at least one alkali metal compound which is c...
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JPH0618799B2 |
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JPH06502196A |
PCT No. PCT/CH92/00128 Sec. 371 Date Mar. 29, 1995 Sec. 102(e) Date Mar. 29, 1995 PCT Filed Jun. 29, 1992 PCT Pub. No. WO93/04023 PCT Pub. Date Mar. 4, 1993.1,1,2,3,4,4,6-Heptamethyl-1,2,3,4-tetrahydronaphthalene
, a novel naphthalenic c...
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JPH0617320B2 |
A process for producing isobutene, comprising contacting, at elevated temperatures, a feed containing propylene with a catalyst comprising a crystalline silica polymorph of the silicalite type in the presence of steam to recover a stream...
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JPH0656849A |
PURPOSE: To provide 1-metallo-5,9-tetradecadiene to be used for the preparation of gossyplure. CONSTITUTION: This 1-metallo-5,9-tetradecadiene is expressed by the formula of C14H25M. In the formula, M is MgX, MgR', BR2, AIR2 or (Ar)2Zr(X...
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JPH0648964A |
PURPOSE: To efficiently disproportionate an olefin by finding a catalyst for disproportionating the olefin having high catalytic activity and long catalytic life and using the resultant catalyst. CONSTITUTION: The objective method for di...
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JPH06501491A |
Molybdenum and tungsten complexes useful as precursors for catalysts useful in the metathesis of olefins are disclosed. New compounds have the formula: M(R1)2(NR2)2(R3)x.
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JPH0611648B2 |
A crystalline zeolite SSZ-23 is prepared using an adamantane quaternary ammonium as a template.
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JPH0640955A |
PURPOSE: To efficiently disproportionating an olefin by using an olefin disproportionating catalyst having high catalytic activity and a catalytic life. CONSTITUTION: In disproportionating an olefin in the presence of a catalyst containi...
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JPH0640958A |
PURPOSE: To provide a method capable of selectively producing a 2,6- dialkylnaphthalene in a high yield constantly over a long period. CONSTITUTION: In production of a 2,6-dialkylnaphthalene by transalkylation, isomerization or dispropor...
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JPH0625025A |
PURPOSE: To produce a 2,6-dialkylnaphthalene in high efficiency by a transalkylation technique using a solid catalyst and exhibiting stable activity over a long period. CONSTITUTION: A 2,6-dialkylnaphthalene is produced by reacting napht...
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JPH062578B2 |
A crystalline zeolite SSZ-25 is prepared using an adamantane quaternary ammonium ion as a template.
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JPH062683B2 |
The invention relates to a process for the preparation of cycloalkadienes in the liquid phase by metathesis reaction in the presence of a supported catalyst based on Re2O7/Al2O3, which is characterised in that a cyclopolyoctenylene havin...
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JPH05320074A |
PURPOSE: To effectively produce 2,6-dialkylnaphthalene by controlling depression of catalyst activity and stably keeping a long term catalyst activity. CONSTITUTION: In producing 2,6-dialkylnaphthalene by subjecting naphthalene or a 2-al...
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JPH05310609A |
PURPOSE: To provide a process for producing a 2,6-dialkylnaphthalene in high efficiency by a selective alkylation technique using a catalyst other than Lewis acid such as AlCl3 and exhibiting stable activity over a long period in a fixed...
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JPH05310610A |
PURPOSE: To produce 2,6-diethylnaphthalene useful as a raw material for 2,6- naphthalenedicarboxylic acid, etc., in high efficiency at a low cost. CONSTITUTION: The production process is composed of a reaction process to react naphthalen...
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JPH05294853A |
PURPOSE: To obtain 4-methylbiphenyl or 4,4'-dimethylbiphenyl high yield and selectivity by transalkylation using a solid acid catalyst containing a solid ultra-strong acid or heteropoly-acid. CONSTITUTION: Biphenyl or 4-methylbiphenyl is...
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JPH0580262B2 |
The present invention relates to a novel method to produce Si/HZSM-5 catalyst and to use it in enhancing the output ratio of p-dimethylbenzene, p-diethylbenzene or p-ethyl-toluene through the alkylation or disproportionation of toluene a...
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JPH0579050B2 |
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JPH0575456B2 |
Olefins are converted into other olefins having different numbers of carbon atoms by contact with a catalyst comprising a silica support containing molybdenum oxide and a promoting amount of at least one titaniferous agent and activated ...
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JPH0572327B2 |
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JPH05506863A |
An improvement in a process for the transalkylation of at least one polyalkylbenzene in the presence of a transalkylation catalyst, which comprises providing the catalyst as a slurry of catalyst particles. This improvement enables one to...
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JPH0569095B2 |
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JPH0567613B1 |
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JPH05506400A |
A hydrocracking process using a catalyst containing a hydrogenation component, zeolite beta, and between 1 and 15 weight percent of a Y zeolite having a unit cell size less than about 24.40 angstroms.
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JPH05238967A |
PURPOSE: To efficiently and inexpensively produce 2,6-diethylnaphthalene useful as a raw material for 2,6-naphthalenedicarboxylic acid, etc. CONSTITUTION: This method for producing 2,6-diethylnaphthalene comprises a reaction process for ...
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JPH0565493B2 |
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JPH05221887A |
PURPOSE: To obtain a method for producing a 2,6-dialkylnaphthalene with good efficiency according to a selective alkylating technique using a catalyst other than a Lewis acid such as AlCl3 and exhibiting stable activity for a lone period...
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JPH05208139A |
PURPOSE: To provide a totally novel catalyst for metathesis reactions comprising an org. tungsten compd. and preparation thereof. CONSTITUTION: A catalyst is characterized by comprising an after-treated tungsten complex contg. diol ligan...
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JPH0556331B2 |
Process for the production of the insect sex attractant, gossyplure, is provided. The process comprises first disproportionating 1,5-cyclooctadiene and 1-hexene to give 1,5,9-tetradecatriene, then metallating the triene to form a 1- meta...
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JPH05201887A |
PURPOSE: To obtain the subject compound useful as a raw material, etc., for polymers in high yield by ethylating naphthalene and monoethylnaphthalenes, isomerizing and trans-ethylating the resultant product, controlling the amount of the...
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JPH05192577A |
PURPOSE: To obtain a heterogeneous catalyst suitable for metathetic reaction of olefins by vaporizing a tungsten-contg. reagent, then routing the vapor thereof into a reaction space, keeping the vapor pressure of the reagent sufficiently...
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JPH0551342B2 |
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JPH0549652B2 |
An improved process for the alkylation of benzene in the presence of an alkylation catalyst. The catalyst bed may be caused to move in a direction countercurrent to the movement of the benzene and olefin, or a portion of the catalyst bed...
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JPH05178611A |
PURPOSE: To provide a method easily producing a metal-containing zeolite having excellent catalytic functions such as acidic function and/or metallic function and excellent catalytic properties such as stability of hydrothermal resistanc...
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JPH05163170A |
PURPOSE: To efficiently obtain the subject compound using a catalyst other than a Lewis acid like AlCl3 by selectively alkylating technique through fixed bed passing reaction with long-term stabilized activity. CONSTITUTION: The objectiv...
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JPH05140003A |
PURPOSE: To profitably obtain a 4-alkyl-4'-diethyl biphenyl useful as a raw material for heat-resistant high molecular materials from an industrially inexpensive polyethyltoluene mixture in a high selectivity and in a high production eff...
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JPH05140004A |
PURPOSE: To profitably obtain a 4-ethyl-4'-alkyl biphenyl useful as a raw material for heat-resistant high molecular materials from an industrially inexpensive polyethyltoluene mixture in a high selectivity and in a high production effic...
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JPH05503033A |
The invention pertains to rhenium (VII) compounds which are catalysts for metathesis of ordinary olefins (hydrocarbons) and functionalized olefins in a homogeneous phase and to methods of synthesizing these compounds. The rhenium compoun...
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JPH05103995A |
PURPOSE: To keep activity for a long period and to increase yield by using a catalyst consisting essentially of a specified silica gel and carrying specified amts. of tungsten oxide and group I oxide as the first catalytic component and ...
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JPH05502040A |
(57) [Summary] Since this publication is application data before electronic filing, summary data is not recorded.
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JPH0585956A |
PURPOSE: To provide a process for the production of ethylbiphenyl having excellent operability without necessitating the waste-water disposal while suppressing the production of 9-methylfluorene which is hardly decomposable undesirable b...
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JPH0585963A |
PURPOSE: To produce 2,6-diethylnaphthalene on an industrial scale at a low cost in high yield by using mordenite as a catalyst and carrying out trans- ethylation using ethylnaphthalene as an ethylation agent as it is. CONSTITUTION: 2,6-D...
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