Patents
Patents for C07C 11 - Acyclic unsaturated hydrocarbons (14,240)
11/1999
11/04/1999WO1999055647A1 Method for separating a c4 hydrocarbon mixture
11/04/1999WO1999055646A1 Production of dimers
11/04/1999CA2330143A1 Production of dimers
11/03/1999EP0953556A1 Improved process for the production of linear alpha-olefines
11/03/1999CN1233608A Improved process for prodn. of linear alpha-olefins
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
11/02/1999CA2136627C Use of zeolites in the conversion of oxygenates in hydrocarbons
11/02/1999CA2018943C Alkene coupling
10/1999
10/28/1999DE19818810A1 Separation of 4 carbon hydrocarbon mixture with recovery of highly pure 1,3-butadiene fraction
10/27/1999EP0951463A1 Improved chemical absorption process for recovering olefins from cracked gases
10/27/1999CN1045951C Process for continuous olefin hydrocarbon isomerization with catalyzing regeneration
10/20/1999EP0950042A1 Two-stage process for obtaining significant olefin yields from residua feedstocks
10/20/1999EP0775099B1 Bf3 promoter process
10/20/1999EP0742787B1 Process for preparing 2-ethyl-2-methylbutanoic acid from 3-methyl-2-pentene
10/19/1999US5969203 Multistage distillation; improved yield
10/19/1999US5968342 Zeolite catalyst and method of converting hydrocarbons using the same
10/14/1999WO1999051552A1 Apparatus for separation and purification of saturated hydrocarbon and method for separation and purification
10/14/1999WO1999051550A1 Oligomerization of propylene
10/14/1999WO1999051549A1 Catalyst and process for converting methanol to hydrocarbons
10/14/1999WO1999051548A1 Process for producing light olefins
10/14/1999DE19814330A1 New alkatriene compounds useful as insect attractants, especially for controlling Bupalus piniarius
10/14/1999CA2327688A1 Catalyst and process for converting methanol to hydrocarbons
10/14/1999CA2327246A1 Process for producing light olefins
10/13/1999EP0948475A1 Method for producing olefins, in particular propylenes, by dehydrogenation
10/13/1999CN1045590C Hydrazine derivative and application of same
10/13/1999CN1045585C Production of a high purity ether product
10/12/1999CA2015067C Process for separating 1-tetradecene from triethylaluminum
10/06/1999EP0946609A1 Polymerization of ethylene with specific iron or cobalt complexes, novel pyridinebis(imines) and novel complexes of pyridinebis(imines) with iron and cobalt
10/06/1999EP0946494A1 Preparation of nylon salts from diamine carbamates and dicarboxylic acids
10/06/1999EP0946469A1 Oligomer mixtures derived from cyclopentene, method for the production and use thereof
10/06/1999EP0946299A1 Selective hydrogenation catalysts containing palladium and at least one element selected among tin and lead
10/05/1999US5962762 Use of transition metal containing small pore molecular sieve catalysts in oxygenate conversion
10/05/1999US5960643 Production of ethylene using high temperature demethanization
09/1999
09/30/1999WO1999007655A8 A combination process for manufacturing ethylene, ethylbenzene and styrene
09/30/1999DE19813720A1 Verfahren zur Herstellung von Olefinen A process for the production of olefins
09/29/1999EP0945415A1 Process for the preparation of olefins
09/29/1999EP0861221B1 Coproduction of vinylidene alcohols and vinylidene hydrocarbons
09/29/1999CN1229696A Catalyst for conversion of ethylene into light alpha olefins
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,
09/27/1999CA2264305A1 Preparation of olefins
09/23/1999WO1999047628A1 Synthesis of branched polyethylene fluids for use in lubricant compositions
09/23/1999WO1999047627A1 Synthesis of branched polyethylene fluids for use in lubricant compositions
09/22/1999CN1045199C Method for preparing fuller's olefine C60/C70 by mass production
09/22/1999CN1045197C Method for preparing line-type olefine
09/21/1999US5955640 Integrated process for the production of butene-1
09/21/1999US5955639 Ethylene/alpha-olefin copolymer
09/21/1999US5955555 Polymerization of ethylene
09/21/1999US5955397 Selective hydrogenation catalysts containing palladium, also tin and/or lead, and the preparation and use thereof
09/15/1999CN1228404A Preparation of propene and, if desired, 1-butene
09/15/1999CN1228402A Process for preparing olefines by 2C or 3C alkyne gas phase selective hydrogeneration
09/14/1999US5952538 Use of short contact time in oxygenate conversion
09/14/1999US5952382 Inhibiting the biological effects of an overregulation of retinoid acid receptors and/or of a hypervitaminosis a; treating skin disorder, eye vision defects, skin aging
09/14/1999US5952257 MTW zeolite for cracking feedstock into olefins and isoparaffins
09/14/1999CA2023704C Process for the preparation of terpenes
09/10/1999WO1999044971A1 Cryogenic separation process for the recovery of components from the products of a dehydrogenation reactor
09/08/1999EP0940413A2 Process for the inhibition of pop-corn polymerization
09/08/1999EP0939673A1 Dealuminised nu-86 zeolite and its use in the conversion of hydrocarbons
09/08/1999EP0830315B1 Process for preparing ferrierite
09/07/1999US5948946 Use of sol-gel derived porous microposite of perfluorinated ion-exchange polymer and metal oxide to isomerize terminal olefins
09/07/1999US5948945 Vinylation of an organic acidic-hydrogen compound, which entails reacting an organic acidic-hydrogen compound with acetylene wherein reactor regions initiating decomposition of acetylene are treated with an effective amount of a chemically
09/01/1999EP0938460A1 Process for olefin isomerization
08/1999
08/31/1999US5945544 Process for production of N-vinyllactam
08/26/1999WO1999042404A1 Polymetallic oxide materials
08/25/1999EP0937697A2 Improvements in catalysts
08/25/1999EP0937017A1 Unsaturated hydrocarbon separation and recovery process
08/25/1999CN1226547A Method for separating C5-C8 materials or intermediate materials
08/25/1999CN1044787C Producing isobutene catalyst by oxidizing and dehydrogenating isobutane
08/24/1999US5942652 Ethane pyrolysis
08/24/1999US5942649 Method for monomer recovery
08/19/1999WO1999041328A1 Mitigating fouling and reducing viscosity
08/19/1999CA2322047A1 Mitigating fouling and reducing viscosity
08/18/1999EP0936206A1 Process for preparing proylene and 1-butene
08/18/1999EP0700317B1 Catalyst for metathesis reactions and use of it
08/18/1999CN1226227A Method for producing high purity isobutylene from butane plus fraction containing isobutylene and butylene-1
08/17/1999CA2015068C Vinylidene dimer process
08/12/1999CA2260304A1 Preparation of propene and, if desired, 1-butene
08/11/1999EP0871599A4 Catalytic oligomerization
08/10/1999US5935293 Fast quench reactor method
08/05/1999WO1999038822A1 Process for the synthesis of chemical industrial feedstock and high-octane fuel, and high-octane fuel composition
08/04/1999EP0933345A1 Three step process for producing light olefins from crude methane and/or ethane
08/04/1999EP0738249B1 Novel hydrocarbon lube and distillate fuel additive
08/04/1999EP0737176B1 Process for isomerizing linear olefins to isoolefins
08/04/1999CN1224705A Three step process for producing light olefins from methane and/or ethane
07/1999
07/21/1999EP0930285A1 Process for preparing butene-1
07/21/1999EP0749406B1 Process for the preparation of optically active cycloolefins
07/21/1999CN1223603A Zeolite catalyst and its use in hydrocarbon conversion
07/21/1999CN1044226C Alkene isomerisation method
07/21/1999CN1044225C Process and equipment for the separation of an unsaturated hydrocarbon from a fluid mixture with other hydrocarbons
07/21/1999CN1044224C Process for isomerisation of olefin through soaking up metallic catalyst containing sulfureous organic compound before filling into reactor
07/20/1999US5925799 Catalytic distillation and hydrogenation of heavy unsaturates in an olefins plant
07/20/1999CA2140075C Process for conversion of ethers to alcohols and olefins
07/15/1999WO1999035110A1 Ethylene plant refrigeration system
07/14/1999CN1222406A Prep. of catalyst for inversion reaction of organic compound
07/14/1999CN1044094C Catalyst for changing methone into high-level hydrocarbon and use thereof
07/14/1999CA2257454A1 Process for obtaining 1-butene
07/13/1999CA2168387C Alkyne hydrogenation catalyst and process
07/13/1999CA2006092C Preparation of propylene
07/07/1999CN1222133A Branched surfactant prepn.
07/07/1999CN1221653A Process for preparing shell-type catalyst
06/1999
06/30/1999CN1221397A Process for manufacture of surfactants containing branch chain alkyl groups