Patents
Patents for C07C 5 - Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms (14,771)
11/1999
11/04/1999CA2330036A1 Process for the hydrogenation of phenyl acetylene in a styrene-containing medium with the aid of a catalyst
11/03/1999CN1233531A Catalyst containing zeolite EUO and use of catalyst in process for isomerizing aromatic compounds containing 8 carbon atoms per molecule
11/03/1999CN1046122C 脱氢方法 Dehydrogenation process
11/03/1999CN1046121C 脱氢方法 Dehydrogenation process
11/02/1999US5977426 Crystallization of 2,6-dimethylnaphthalene
11/02/1999US5976352 Process for thermal conversion of hydrocarbons to aliphatic hydrocarbons which are more unsaturated than the starting products, combining a steam cracking step and a pyrolysis step
10/1999
10/27/1999EP0951443A1 Hydrocarbon conversion using large crystal zeolite catalyst
10/27/1999CN1045951C Process for continuous olefin hydrocarbon isomerization with catalyzing regeneration
10/27/1999CN1045950C Process for selective hydrogenation
10/26/1999US5973218 Process for producing cycloolefin
10/26/1999US5972203 Hydrocarbon conversion catalyst and its use
10/21/1999WO1999052842A1 Xylene isomerization
10/20/1999EP0950650A2 Process for the preparation of 2,6 dimethylnaphthalene
10/20/1999EP0950019A1 Zeolite ssz-45
10/20/1999EP0949971A1 Use of microporous anorganic membrane catalysts
10/20/1999EP0705238B1 Regeneration and stabilization of dehydrogenation catalyst
10/20/1999EP0687248B1 Crystallization of 2,6-dimethylnaphthalene
10/19/1999US5969205 Feeding heated alkenes having terminal double bonds, hydrogen, recycle stream into reactor charged with noble metal catalyst, isomerizing in liquid phase, dividing product stream, isolating alkenes having internal double bonds
10/19/1999US5969203 Multistage distillation; improved yield
10/19/1999US5969202 Hydrogenation of aromatic hydrocarbons using ruthenium catalyst, water and zinc sulfate
10/19/1999US5968344 Conversion with high selectivity using bifunctional catalyst comprising hydrodehydrogenating group viii metal on an acidic silica-alumina gel which provides isomerization activity
10/19/1999US5968342 Zeolite catalyst and method of converting hydrocarbons using the same
10/19/1999US5968341 Activated silica enriched mazzite, production method and application thereof
10/19/1999CA2175327C Regeneration of catalyst for the simultaneous selective hydrogenation of diolefins and nitriles
10/14/1999DE19915590A1 Activation of catalyst containing group VIII metal for isomerization of 8 carbon aromatic compounds
10/13/1999EP0949347A1 Use of steels with low content of alloying elements for applications involving non-coking properties
10/13/1999EP0949229A1 Process for the isomerisation of aromatic compounds with eight carbon atoms using a catalyst of the structural type EUO
10/13/1999EP0948475A1 Method for producing olefins, in particular propylenes, by dehydrogenation
10/12/1999CA2034610C Platinum-enriched surface layer catalyst for the isomerization of alkanes
10/07/1999WO1999049968A1 Dehydrogenation catalysts comprising at least iron, alkali metal and a noble metal
10/07/1999WO1999049967A1 Catalyst for dehydrogenating 1,1-diphenylethanes and substituted 1,1-diarylethanes
10/07/1999WO1999049966A1 Catalyst for dehydrogenating ethyl benzene to produce styrene
10/07/1999DE19814459A1 Simultaneous production of 1,1-diphenylethylene and styrene, useful in copolymer production
10/07/1999DE19814457A1 Production of 1,1-diphenyl ethylene useful in production of copolymers with styrene
10/07/1999DE19814081A1 Katalysator zur Dehydrierung von 1,1-Diphenylethan und substituierten 1,1-Diarylethanen Catalyst for the dehydrogenation of 1,1-diphenyl ethane and 1,1-substituted Diarylethanes
10/07/1999DE19814080A1 Katalysator zur Dehydrierung von Kohlenwasserstoffen, insbesondere zur Dehydrierung von Ethylbenzol zu Styrol, sowie Verfahren zu seiner Herstellung A catalyst for dehydrogenation of hydrocarbons, especially for the dehydrogenation of ethylbenzene to styrene, as well as methods for its preparation
10/06/1999EP0946299A1 Selective hydrogenation catalysts containing palladium and at least one element selected among tin and lead
10/06/1999EP0783470B1 Upgrading of fischer-tropsch heavy end products
10/06/1999CN1230462A Low-temperature alkyl arene dehydrogenating catalyst
10/06/1999CN1230461A Alkyl arene dehydrogenating catalyst
10/05/1999US5962757 Dehydrogenation catalyst and process
10/05/1999US5962755 Process for the isomerization of benzene containing feed streams
09/1999
09/30/1999WO1999048604A1 Fixed catalytic bed reactor
09/30/1999CA2325435A1 Fixed catalytic bed reactor
09/29/1999CN1045306C Method for reducing benzol content in petroleum
09/29/1999CN1045286C Tech. for prepn. of high pureness metadimethyl benzene
09/28/1999US5958822 Possessing a sulfonic acid fluoride, chloride or ester group or a sulfonic acid or a salt of a sulfonic acid group at one end and respectively a hydrolyzable or hydrolyzed silane group at the other end. catalysts for alkylation, acylation,
09/28/1999US5958370 Zeolite SSZ-39
09/23/1999WO1999047476A1 Method of making dimethylnaphtalenes
09/23/1999CA2323884A1 Method of making dimethylnaphthalenes
09/22/1999EP0710152B1 Process for producing a modified oxide catalyst
09/21/1999US5955642 Multi-stage alkylation zone having a plurality of series connected catalyst beds containing a as silicalite, coupled with intermediate separation and recirculation steps and liquid phase transalkylation over a zeolite catalyst having a
09/21/1999US5955641 Alkylation of toluene with pentene/1-/ using acid catalyst; reforming pentyltoluene using platinum/alumina catalyst; cyclization, decyclization
09/21/1999US5955397 Selective hydrogenation catalysts containing palladium, also tin and/or lead, and the preparation and use thereof
09/21/1999CA2093511C Process for producing dialkylnaphthalene
09/21/1999CA2010654C Process for isomerization of a hydrocarbon stream
09/16/1999WO1999046041A1 Hydrocarbon hydrogenation and catalyst therefor
09/16/1999WO1999046039A1 Improved catalyst support material
09/16/1999DE19830171C1 Preparation of phytosqualane from vegetable oil residue, useful for cosmetic and pharmaceutical purposes, e.g. in shampoos, foam baths, creams, lotions and salves
09/15/1999EP0941230A1 1,3-diphosphinopropane ligands and transition metal complexes formed therefrom, their preparation and use
09/15/1999EP0739239B1 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide
09/15/1999EP0536325B1 Wax isomerization using catalyst of specific pore geometry
09/15/1999CN1228402A Process for preparing olefines by 2C or 3C alkyne gas phase selective hydrogeneration
09/14/1999US5952534 Manufacturing of 2,6-dimethylnaphthalene
09/14/1999US5952430 Process for selective hydrogenation of poly(monovinyl aromatic)-poly(conjugated diene) block copolymers
09/14/1999US5952257 MTW zeolite for cracking feedstock into olefins and isoparaffins
09/10/1999WO1999044738A1 Solid acid catalyst, method for preparing the same and reaction using the same
09/08/1999EP0830315B1 Process for preparing ferrierite
09/08/1999EP0600935B1 Hydrogenation process
09/07/1999US5948946 Use of sol-gel derived porous microposite of perfluorinated ion-exchange polymer and metal oxide to isomerize terminal olefins
09/01/1999EP0939070A1 Process for the preparation of six-ring carbocyclic compounds
09/01/1999EP0938460A1 Process for olefin isomerization
09/01/1999CN1227534A Process for forming cyclopentane from dicyclopentadiene
09/01/1999CN1044868C C8 arene isomerization catalyst and its preparation method
08/1999
08/31/1999CA2046295C Process for producing lube oil from olefins by isomerization over a silicoaluminophosphate catalyst
08/26/1999WO1999042404A1 Polymetallic oxide materials
08/26/1999DE19807269A1 Multimetal oxides used as catalysts in oxidative dehydrogenation of propane to propene
08/25/1999EP0937697A2 Improvements in catalysts
08/25/1999CN1226883A Process for separating and purifying alkali metal salts of hydroxynaphthalenecarboxylic acids
08/25/1999CN1044787C Producing isobutene catalyst by oxidizing and dehydrogenating isobutane
08/24/1999US5942652 Ethane pyrolysis
08/24/1999US5942650 Selective absorbtion of acetonitrile from aromatic stream with nonacidic molecular sieve of specific zeolites with pore size of less than 5.5 angstroms prevents downstream poisoning of acid catalysts in alkyl aromatic production
08/19/1999WO1999041337A1 Improved wax hydroisomerization process
08/19/1999WO1999041335A1 A lube basestock with excellent low temperature properties and a method for making
08/19/1999WO1999041334A1 Process for improving basestock low temperature performance using a combination catalyst system
08/19/1999WO1999041008A1 Reactor vessel
08/19/1999CA2320106A1 Process for improving basestock low temperature performance using a combination catalyst system
08/19/1999CA2319146A1 Improved wax hydroisomerization process
08/18/1999EP0793634B1 Hydrocarbon conversion process using a zeolite bound zeolite catalyst
08/18/1999CN1226227A Method for producing high purity isobutylene from butane plus fraction containing isobutylene and butylene-1
08/18/1999CN1225917A Method for preparing straight chain mono-olefins by supercritical catalyst dehydrogenation
08/18/1999CN1044704C Preparation of cycloolefin
08/12/1999WO1999040050A1 Process for preparing cyclic monomers
08/11/1999EP0934920A2 Preparation of hydrogenated compounds using noble metal Raney catalysts
08/10/1999US5935897 Hydrogenation, oxidation, dehydrogenation catalysts
08/04/1999EP0737176B1 Process for isomerizing linear olefins to isoolefins
08/04/1999CN1225081A Recovery of styrene from pyrolysis gasoline by extractive distillation
08/04/1999CN1044469C Method for producing a cycloolefin
07/1999
07/28/1999EP0931588A1 Catalytic composition for the hydrogenation of olefinically unsaturated compounds
07/28/1999EP0931040A1 Process and catalyst for the catalytic oxidative dehydrogenation of alkyl aromatics and paraffins