Patents
Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802)
09/1995
09/05/1995US5447542 Process for separating and purifying substances by crystallization from the melt
09/05/1995US5447541 Process for separating and purifying substances by crystallization from the melt under high pressure
08/1995
08/30/1995EP0669389A1 Process for recovering ethylene comprising a precooling step
08/30/1995CN1107381A Improved adsorption separation process for simulation moving bed
08/29/1995US5446232 Removing oxygen from hydrocarbon gases
08/29/1995US5446231 Extracting nitriles with solvent of water and methanol, separating hydrocarbon
08/29/1995US5446224 Integrated process for producing iso-butene and alkyl tert-butyl ethers
08/29/1995US5446220 Using mixture of dinitrophenol compound, hydroxylamine, and a phenylenediamine
08/29/1995US5445715 Distillation of mixtures in presence of tetraethyl ortho silicate as volatility promoter
08/24/1995WO1995022587A1 Process for producing thermally cracked products from hydrocarbons
08/23/1995EP0668106A2 Olefin production
08/23/1995CN1107132A Olefin production
08/22/1995US5444176 Removing acid gases, separating into first portion comprising methane, hydrogen, nitric oxide, and hydrocarbons containing up to three carbon atoms, and second portion comprising nitric dioxide and hydrocarbons having four carbons, oil absorption
08/22/1995US5443697 Separation of heptane from 1-heptene by extractive distillation
08/16/1995EP0667327A1 Open loop mixed refrigerant cycle for ethylene recovery
08/16/1995EP0667326A1 Mixed refrigerant cycle for ethylene recovery
08/16/1995EP0666895A1 Process for recovering olefins from cat-cracked gas without accumulating undesirable oxides of nitrogen.
08/16/1995EP0666767A1 High purity benzene production using extractive distillation
08/16/1995EP0649387A4 Synthesis of zeolite films bonded to substrates, structures and uses thereof.
08/16/1995CN1106777A Process for the removal of arsine carbonyl sulphide from hydrocarbon feedstocks containing light olefin(s)
08/15/1995US5442040 Using activated carbon adsorber
08/15/1995US5441608 Presence of extractive agent alters relative volatility of close boiling compounds; requires fewer theoretical plates for separation
08/10/1995WO1995021146A1 Removal of carbon monoxide from hydrocarbon streams
08/10/1995DE4405883C1 Verfahren zur Herstellung von thermisch gecrackten Produkten und Anwendung des Verfahrens zur Verminderung der Verkokung von Wärmeaustauschflächen Process for the preparation of thermally cracked products and use of the method for reducing the coking of heat-exchange surfaces
08/09/1995CN1106370A Improved method for producing high pure para-xylene through adsorption separation
08/09/1995CN1106310A Method for recovering ethylene from vent gas from ethylene oxide plant vent gas
08/03/1995WO1995020557A1 A process for preparing 3-methyl-2-pentene
08/02/1995EP0665205A1 Reactive separation process
08/02/1995CN1106055A 催化裂化工艺 FCC Process
07/1995
07/28/1995CA2140074A1 Reactive separation process
07/27/1995WO1995019946A1 Method for removing contaminants from hydrocarbon streams
07/26/1995EP0664279A1 Compositions and methods for inhibiting polymerization of ethylenically unsaturated monomers
07/25/1995US5436402 Method for preparing p-isobutylstyrene
07/25/1995US5435436 Bottoms flashed in respective cooling loops; vaporization in heat exchange with an overhead condensing zone; compression loops
07/20/1995CA2135426A1 Compositions and methods for inhibiting polymerization of ethylenically unsaturated monomers
07/19/1995EP0625134B1 Method of producing light c2+ -hydrocarbons from cracked gas
07/19/1995EP0553210B1 A polymerisation inhibitor system comprising air and a N-phenyl-1,4-benzoquinoneimine compound
07/18/1995US5434330 Purification of natural and synthesis gas by formation of clathrates with water
07/18/1995US5434329 Treatment of spent refinery caustic
07/18/1995US5434323 Method for reducing the agglomeration tendency of hydrates in production effluents
07/18/1995US5433928 Absorption column with internal mixing chamber for absorption of acetylene
07/15/1995CA2135428A1 Methods for inhibiting ethylenically unsaturated monomers
07/12/1995CN1105010A Process and device for the separation of an unsaturated hydrocarbon from a fluid mixture with other hydrocarbons
07/12/1995CN1029310C Method for producing fine naphthalene
07/11/1995US5432243 Process for the polymerization of olefins
07/06/1995WO1995018087A1 Recovery of reactants and products in production of alkenyl bridged ring compounds
07/06/1995WO1995018086A1 Crystallization of 2,6-dimethylnaphthalene
07/04/1995US5430225 Used to separate alkenes and or alkynes from hydrocarbon mixtures
07/04/1995US5430224 Supercritical perstraction process
07/04/1995US5430218 Dehydrogenation using dehydrogenation catalyst and polymer-porous solid composite membrane
07/04/1995US5430041 Amino acid derivatives having antiviral activity
06/1995
06/27/1995US5427689 Separation of polar substances from hydrocarbons
06/22/1995WO1995016652A1 Production of polymerization grade dicyclopentadiene
06/21/1995EP0658615A2 Process to recover benzene from mixed hydrocarbons
06/20/1995US5426258 Process for reducing the agglomeration tendency of hydrates in the production effluent
06/20/1995US5426257 Compositions and methods for inhibiting vinyl aromatic monomer polymerization
06/20/1995US5425855 Separation of ethyl benzene from p-xylene by extractive distillation
06/14/1995EP0657406A1 Process for the separation of propene-propane mixtures
06/14/1995DE4341875A1 Residual liquid hydrocarbon charge recovery from adsorbent used for removing sulphur cpds.
06/07/1995CA2134849A1 Process to recover benzene from mixed hydrocarbons
06/06/1995US5421972 Electrostatic separation of acetonitrile involves dispersing, mixing, coalescing and settling cycle
06/06/1995US5421167 Enhanced olefin recovery method
06/02/1995CA2136496A1 Method for the separation of propylene/propane mixtures
05/1995
05/31/1995EP0655492A2 Catalytic cracking process
05/30/1995US5419884 Regenerative mercury removal process
05/24/1995EP0654459A1 Purification of hydrocarbon streams
05/24/1995CN1102824A Method of refining cracked gasoline and crude benzole by liquid-phase coking distillation method with clays
05/24/1995CN1028515C Chromatographic separation process for recovering either (2,6-DET) or (3,5-DET) from mixture thereof with another det isomer
05/23/1995US5417812 Separation of ethyl benzene from xylenes by azeotropic distillation
05/18/1995WO1995013511A1 Cryogenic separation
05/18/1995CA2174514A1 Cryogenic separation
05/17/1995EP0562005B1 Integrated solvent extraction/membrane extraction with retentate recycle for improved raffinate yield
05/16/1995US5416258 Methods for inhibiting ethylenically unsaturated monomers
05/10/1995EP0652194A1 Process for the separation of oxygenated compounds from hydrocarbons, combining a distillation step and a permeation step and its use in etherification
05/10/1995CN1028358C Extracting sym-tetratolyl from carbon 10 heavy aromatic
05/09/1995US5414194 Method of production of novel molybdenum-sulfide dimers and reactions of the same
05/09/1995US5414192 Process for separating linear and branched hydrocarbons using aryl-bridged polysilsesquioxanes
05/09/1995US5414191 Method of removing alkyltetralins from an alkylbenzene mixture
05/09/1995US5414190 Dewatering feed gas of methane, C2+ hydrocarbons, nitrogen, carbon dioxide and water in regenerable adsorption stage; removing carbon dioxide in membrane separating stage; distilling to separate hydrocarbons, residual carbon dioxide
05/09/1995US5414189 Isolation of high purity diamondoid fractions and components
05/09/1995US5414188 Method and apparatus for the separation of C4 hydrocarbons from gaseous mixtures containing the same
05/09/1995US5414183 Nitrogen removal from light hydrocarbon feed in olefin isomerization and etherication process
05/09/1995US5414170 Mixed phase front end C2 acetylene hydrogenation
05/09/1995CA1335491C Method for extracting organic compounds from air/permanent gas mixtures
05/03/1995EP0650516A1 Acetylene converter moderators
04/1995
04/27/1995WO1995011208A1 Method for separating hydrocarbons
04/26/1995EP0649387A1 Synthesis of zeolite films bonded to substrates, structures and uses thereof
04/26/1995EP0334941B1 Increasing the level of 2-methyl-2-butene in isoamylene
04/25/1995CA1335324C Polymerization inhibitor composition for vinyl aromatic compounds
04/20/1995WO1995010493A1 Process for the purification of medium-chain olefins
04/20/1995CA2135802A1 Process for the purification of medium-chain olefins
04/19/1995EP0648721A1 Process for the purification of medium-chain olefins
04/19/1995EP0648720A1 Process for the removal of arsine and carbonyl sulphide from hydrocarbon feedstocks containing light olefin(s)
04/13/1995WO1995010011A1 Improved thermodynamic separation
04/13/1995DE4334256A1 Process for recovering a C2H4-rich product fraction from a hydrocarbon-containing starting fraction
04/12/1995EP0647157A1 Regeneration of acetylene converter catalysts by hydrogen stripping.
04/11/1995US5405505 Separation of benzene from close boiling hydrocarbons by azeotropic distillation
04/11/1995US5405504 Effective agents are 1-propanol, 2-ethoxyethanol and methanol
04/05/1995EP0646603A1 Production of alkene polymers
04/05/1995EP0646104A1 PROCESS FOR IMPROVING PURITY OF -i(PARA)-XYLENE PRODUCT.