Patents
Patents for C07C 11 - Acyclic unsaturated hydrocarbons (14,240)
06/1999
06/30/1999CN1220987A Quench oil viscosity control in pyrolysis fractionator
06/24/1999WO1999031201A1 Process for recovering olefins
06/24/1999DE19756292A1 Katalysator zur Umwandlung paraffinischer Kohlenwasserstoffe in korrespondierende Olefine Catalyst for the conversion of paraffinic hydrocarbons into corresponding olefins
06/22/1999US5914379 Compression of ethylenically unsaturated monomers
06/17/1999WO1999029807A1 Production of olefins
06/17/1999WO1999029805A1 Production of propylene
06/17/1999WO1999029701A1 Heterocyclyl ligand containing ruthenium and osmium catalysts
06/17/1999WO1999029641A1 Process for separating linear internal olefins from branched internal olefins
06/17/1999WO1999029420A1 Catalyst for converting paraffinic hydrocarbon into corresponding olefin
06/17/1999CA2313327A1 Process for separating linear internal olefins from branched internal olefins
06/16/1999EP0922748A1 Process for the separation of a C5-C8 feed in three fractions rich in normal , mono-branched and multi-branched paraffins
06/16/1999EP0922018A1 Method for producing high purity isobutylene from a butane plus fraction containing isobutylene and butylene-1
06/15/1999US5912394 Catalyst for the dehydrogenation of C6 -C15 paraffins and to a process for making such catalysts
06/15/1999US5912191 Isomerization and etherification
06/09/1999EP0921181A1 Production of propylene
06/09/1999EP0921180A1 Production of olefins
06/09/1999CN1219161A Process for selective production of acetic acid
06/09/1999CN1218787A Preparing method for propylene
06/09/1999CN1218786A Process for producing ethylene and propene by catalytic thermal cracking
06/08/1999US5910618 Process for preparing 2,3-dimethyl-2-butene
06/03/1999WO1999026905A1 Process for the oligomerization of isobutylene
05/1999
05/27/1999WO1999025668A1 Method for producing essentially unbranched octenes and dodecenes by oligomerising unbranched butenes
05/20/1999WO1999009118A8 Catalytic distillation and hydrogenation of heavy unsaturates in an olefins plant
05/19/1999EP0842239B1 Method for monomer recovery
05/19/1999EP0799090B1 Aluminosilicate carrier for metathesis catalysts
05/19/1999CN1216941A Use of alkaline earth metal contg. small pare non-zeolitic molecular sieve catalysts in oxygenate conversion
05/18/1999US5905180 Catalytic oxidative dehydrogenation process and catalyst
05/18/1999CA2085582C Process for adsorbing sulfur species from propylene/propane using regenerable adsorbent
05/12/1999EP0915072A1 Process for preparing propene
05/12/1999EP0794932B1 Dimerization catalyst and process using alkyl aluminium alkoxide
05/12/1999EP0768996B1 Catalyst and process for the catalytically oxidative dehydrogenation of alkyl aromatics
05/12/1999EP0696265B1 Olefin isomerisation method
05/11/1999US5902920 Silicalite as the catalyst is pretreated with steam; isobutene selectively produced from n-butenes
05/11/1999US5902918 Using redox catalyst prepared by admixing catalytic component bismuth oxide and titanium oxide in the presence of lanthanum and an alkali metal oxide and alkaline earth metal oxide
05/11/1999CA2164742C Alkyne hydrogenation process
05/06/1999EP0913453A1 Process for the selective hydrogenation of unsatured compounds
05/06/1999EP0913198A1 Process for preparation of catalysts useful for organic compounds convertion reactions
05/05/1999CN1215723A Process for manufacture of carotenoids
05/04/1999US5900521 Catalysts for converting methane or purified natural gas, preparation thereof, and process for preparation of ethylene using the catalysts
05/04/1999CA2136625C Use of acid extracted molecular sieve catalysts in oxygenate conversion
04/1999
04/28/1999EP0911378A2 Quench oil viscosity control in pyrolysis fractionator
04/28/1999EP0911308A1 Process for the preparation of olefins by direct conversion of multiple hydrocarbons
04/28/1999CN1215386A Process for the dimerization of lower olefins
04/28/1999CN1215041A Process for direct-conversion preparation olefines from multiple fed hydrocarbon
04/27/1999US5898092 Rhenium oxide and (di)alkyl(di)aryloxyaluminum compound on porous catalyst support; impregnation, roasting
04/27/1999US5898091 Selective hydrogenation, etherification, separation of oxygen containing impurities and methasis
04/27/1999US5897866 Process for the extraction of lycopene using phospholipid in the extraction medium
04/27/1999CA1340514C Lower alkene polymers
04/22/1999DE19746040A1 Propene production giving high yield and selectivity by disproportionation of but-1-ene, but-2-ene and isobutene using a metathesis catalyst based on a transistion metal
04/22/1999DE19745851A1 Acetylene odorized with organic sulfur compounds, useful as fuel gas in welding
04/21/1999EP0909804A2 A process for production of ethylene and propylene by catalytic pyrolysis of heavy hydrocarbons
04/21/1999EP0909582A1 Cracking catalytic for the production of light olefins and its preparation
04/21/1999EP0909216A1 Zeolite catalyst and its use in hydrocarbon conversion
04/20/1999US5895830 Adding heavy paraffins to oligomerization zone to prevent catalyst fouling and raise octane number of resulting oligomers
04/17/1999CA2249019A1 Preparation of propene
04/15/1999WO1999018055A1 Method for increasing light olefin yield by conversion of a heavy hydrocarbon fraction of a product to light olefins
04/14/1999EP0908449A1 Preparation of carotenoids
04/14/1999EP0908436A1 Process for the dimerization of lower olefins
04/14/1999EP0842241A4 Improved process for selective hydrogenation of highly unsaturated compounds and isomerization of olefins in hydrocarbon streams
04/14/1999EP0683760B1 Dehydrogenation processes and equipment therefor
04/14/1999CN1214035A Hydrocarbon separation
04/07/1999EP0906257A1 Mixtures containing monomers and stabilizers
04/07/1999CN1213361A Process for preparation of alpha-olefins
04/06/1999CA2000182C Ethylene oligomerization process and catalyst
04/03/1999CA2248450A1 Manufacture of carotenoids
04/01/1999WO1999015603A1 Composition preventing polymerisation of ethylenically unsaturated monomers
04/01/1999WO1999015482A1 Fixed bed process for conversion of methanol with silico alumina phosphate molecular sieve catalyst
03/1999
03/31/1999EP0905111A1 Removal of polynuclear aromatic compounds from a vapor effluent from a dehydrogenation reaction zone
03/31/1999EP0904838A2 Method for preparing a shell-type catalyst
03/31/1999EP0904833A1 Membrane-type reaction vessel
03/31/1999EP0580847B1 Catalyst and process for hydrocarbon dehydrogenation
03/30/1999US5889187 Catalytic hydrogenation process and a catalyst for use in the process
03/30/1999US5888471 Synthetic crystalline porous material containing oxides of silicon, titanium and gallium
03/30/1999CA2248817A1 Process for preparing a shell-type catalyst
03/30/1999CA1340474C A1c13-catalyzed process for preparing poly-n-butenes from mixed butenes
03/29/1999CA2217225A1 Removal of polynuclear aromatic compounds from a vapor effluent from a dehydrogenation reaction zone
03/25/1999WO1999002472A8 Manufacture of alpha-olefins
03/24/1999EP0737177B1 Method for making trans non-conjugated diolefins
03/24/1999CN1211968A Mixture containing monomers and stabilizers
03/23/1999CA2001537C Process for producing alpha olefins
03/18/1999DE19740895A1 Production of propene and 1-butene
03/17/1999EP0901454A1 Process for the selective production of acetic acid
03/17/1999EP0793633B1 Method for converting a chlorinated alkane into a less chlorinated alkene
03/16/1999US5883272 Supplying silica and alumina from precursor compounds; heat treatment
03/16/1999US5883038 Supported catalysts for converting methane or purified natural gas, preparation thereof, and process for preparation of ethylene using said catalysts
03/10/1999EP0900181A1 Branched surfactant manufacture
03/09/1999US5880320 Multistage process involving forming cracked gas and liquid, fractioning cracked gas in demethanization zone to produce ethylene, reacting ethylene and benzene to produce ethylbenzene, converting to styrene
03/09/1999US5879535 Two-stage process for obtaining significant olefin yields from residua feedstocks
03/03/1999EP0899012A1 New catalysts suitable for the conversion reactions of organic compounds
03/03/1999EP0898554A1 Process for the manufacture of surfactants containing branch chain alkyl groups
03/03/1999CN1209795A Process for preparing propyne
03/03/1999CN1209759A Catalytic oxidative dehydrogenation process and catalyst
03/02/1999US5877380 Quench oil viscosity control in pyrolysis fractionator
03/02/1999US5877376 Conversion of ethylene into butene-1 using additives based on quarternary ammonium salts
03/02/1999US5877372 Isobutylene oligomerization using isooctane diluent
03/02/1999US5877365 Process and plant for the conversion of olefinic C4 cuts to polyisobutene and to propylene
03/02/1999CA2152194C Hydrogenation process and catalyst therefor
02/1999
02/25/1999WO1999009118A1 Catalytic distillation and hydrogenation of heavy unsaturates in an olefins plant
02/24/1999CN1209077A Etherification-hydrogenation process
02/24/1999CN1208669A Catalyst for prodn. of ethylene by oxidating mixture of methane and ethane as raw material