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