| Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802) | 
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| 01/05/1983 | EP0068587A1 Process to remove nitrogen from natural gas | 
| 01/05/1983 | EP0068218A1 Process for the preparation of pure alkyl-tert.-alkyl ethers and hydrocarbonaceous raffinates freed for the major part from isoolefines and alkanols | 
| 01/05/1983 | EP0068194A1 Process for the separation of pure tert. olefines from hydrocarbon mixtures | 
| 01/04/1983 | US4367364 Process for separating normal paraffins using silicalite adsorbent | 
| 01/04/1983 | US4367363 Production of acetylene | 
| 01/04/1983 | US4367360 Method for product isolation and catalyst recovery in aluminum chloride catalyzed isomerization of sym-octahydrophenanthrene to sym-octahydroanthracene | 
| 01/04/1983 | US4367354 Temperature control of a selective hydrogenation process | 
| 01/04/1983 | US4367353 Unsaturated hydrocarbons, two streams | 
| 01/04/1983 | CA1138899A1 Process for removal of carbonyl sulfide in liquified hydrocarbon gases with absorption of acid gases | 
| 12/29/1982 | EP0067870A1 Removal of hydrocarbon compositions | 
| 12/29/1982 | EP0067812A1 Scavenging hydrogen sulfide from hydrocarbon gases. | 
| 12/22/1982 | EP0067404A2 Method for obtaining uniform stream in adsorption column | 
| 12/22/1982 | EP0067372A1 Liquid chromatography process | 
| 12/15/1982 | EP0066940A1 Automatic C02 removal system and operation thereof | 
| 12/14/1982 | US4363704 Phthalic anhydride or maleic anhydride and a solvent | 
| 12/14/1982 | CA1137426A1 Process and apparatus for recovering hydrocarbons from air-hydrocarbon vapor mixtures | 
| 12/08/1982 | EP0066310A1 Sulphur recovery process | 
| 12/07/1982 | US4362537 Method for the removal of polymer from a purge medium in a monoolefin adsorption - desorption separation process | 
| 12/07/1982 | CA1137119A1 Separation of benzene in dealkylation processes | 
| 11/24/1982 | EP0065194A1 Process for obtaining a conjugated diolefine from a C4-C5 hydrocarbon mixture | 
| 11/24/1982 | EP0065112A1 Production of olefines | 
| 11/23/1982 | CA1136164A1 Process for the separation of dienic and/or aromatic hydrocarbons present in hydrocarbon fractions | 
| 11/16/1982 | US4359596 Liquid salt extraction of aromatics from process feed streams | 
| 11/16/1982 | US4359380 Adsorption process | 
| 11/16/1982 | US4359328 For recovering adsorbable gas comonents of enhanced purity | 
| 11/10/1982 | EP0064301A1 Catalyst, method for the treatment of a gaseous mixture and use of the catalyst for selectively hydrogenating acetylene | 
| 11/09/1982 | US4358367 Paraffins | 
| 11/09/1982 | US4358362 Method for enhancing catalytic activity | 
| 11/09/1982 | US4358297 Using zeolites containing the oxide of cadmium or zinc; hydrocarbons; desorption by heating with a reducing gas | 
| 11/09/1982 | CA1135287A1 Method of and apparatus for the separation of natural gas | 
| 11/03/1982 | EP0063815A1 Process for the production of alcohols and ethers | 
| 11/03/1982 | EP0063813A1 Process for the production of mixtures containing isopropyl-tert.-butyl ether and tert.-butyl alcohol | 
| 10/26/1982 | US4356339 Process for isolating and recovering butene-1 of high purity | 
| 10/26/1982 | US4356155 Sulfur process | 
| 10/26/1982 | CA1134396A1 Simultaneous cooling and removal of water from hydrocarbon gas mixtures | 
| 10/26/1982 | CA1134121A1 Vapor recovery | 
| 10/20/1982 | EP0062789A2 Process for separating condensable aliphatic hydrocarbons and acid gases from natural gas | 
| 10/19/1982 | CA1133951A1 Isolation of isobutene from c4-hydrocarbon mixtures containing isobutene | 
| 10/13/1982 | EP0062626A1 Process for the distillation of vinyltoluene | 
| 10/13/1982 | EP0062624A1 Process for removing insoluble cross-linked polymers from the equipment used to produce vinylaromatic compounds | 
| 10/12/1982 | US4353840 Reversible absorption | 
| 10/05/1982 | US4352685 Process for removing nitrogen from natural gas | 
| 09/28/1982 | US4351981 Separation of para-xylene | 
| 09/28/1982 | US4351980 Removal of olefin from aliphatic hydrocarbon by treatment with active solid | 
| 09/22/1982 | EP0060357A1 Heat pump fractionation process | 
| 09/21/1982 | USRE31037 Group ib and transition metal oxides | 
| 09/21/1982 | US4350511 Distillative separation of carbon dioxide from light hydrocarbons | 
| 09/21/1982 | CA1132141A1 Process for producing a substantially sulphur-free, butene-1 rich stream | 
| 09/14/1982 | US4349418 Quinoline and isoquinoline, solvent extraction | 
| 09/07/1982 | US4348544 Recovery of propane from HF alkylation vent gas | 
| 09/07/1982 | US4348260 Method for inhibiting polymerization of conjugated dienes | 
| 09/07/1982 | US4348214 Hydrogen sulfide removal with sulfur-containing esters | 
| 08/31/1982 | US4347392 Process for the selective hydrogenation of a hydrocarbon fraction with 2 or 3 carbon atoms per molecule | 
| 08/31/1982 | CA1130754A1 Polymerization inhibitor for vinyl aromatic compounds | 
| 08/31/1982 | CA1130539A1 Continuous countercurrent fluid-solids contacting process stabilized by a magnetic field | 
| 08/17/1982 | US4345105 Hydrogenation to propylene | 
| 08/17/1982 | US4344842 Reactive iron oxide agents for scavenging hydrogen sulfide from hydrocarbon liquids | 
| 08/17/1982 | CA1129764A1 Recovery of c.sub.2 hydrocarbons from demethanizer overhead | 
| 07/28/1982 | EP0056718A2 Pretreatment of catalytic conversion feedstocks | 
| 07/27/1982 | US4341600 Polymerization inhibitor for vinyltoluene | 
| 07/27/1982 | CA1128552A1 Process for the simultaneous manufacture of pure mtb and a substantially isobutene-free mixture of c.sub.4-hydrocarbons | 
| 07/27/1982 | CA1128549A1 Production of 3-methylphenol | 
| 07/27/1982 | CA1128424A1 Fractionation in an adsorptive hydrocarbon separation process | 
| 07/22/1982 | WO1982002347A1 Scavenging hydrogen sulfide from hydrocarbon liquids | 
| 07/22/1982 | WO1982002346A1 Scavenging hydrogen sulfide from hydrocarbon gases | 
| 07/22/1982 | WO1982002342A1 Removal of hydrocarbon compositions | 
| 07/21/1982 | EP0056197A1 Process for removal of sulfur from moisture-bearing, sulfur-containing hydrocarbon process streams | 
| 07/20/1982 | CA1127961A1 Interrelated rectification of gaseous mixtures | 
| 07/13/1982 | CA1127623A1 Crystalline silicates and methods for preparing same | 
| 07/13/1982 | CA1127560A1 Cumene recovery | 
| 07/13/1982 | CA1127379A1 Process for the removal of acid gases from a gas mixture | 
| 07/07/1982 | EP0055361A1 Process for the simultaneous preparation of alkyl tert.-butyl ether and recovery of butadiene | 
| 07/06/1982 | US4338477 Removal of catalyst residues from a gas | 
| 07/06/1982 | US4338101 Adsorption, desorption, condensation, absorption in liquid, circulation | 
| 07/06/1982 | CA1127135A1 Crystalline aluminosilicate zeolite, synthesis and use thereof | 
| 06/22/1982 | US4336410 Process for absorptive separation of cyclohexene | 
| 06/22/1982 | US4336110 Separation of benzene from cyclohexane | 
| 06/22/1982 | US4336106 Apparatus for the solvent extraction of aromatic hydrocarbons from a hydrocarbon mixture | 
| 06/22/1982 | CA1126152A1 Cryogenic expander recovery process | 
| 06/22/1982 | CA1125993A1 Method for removing hydrogen sulphide from gaseous mixture containing hydrogen sulphide and carbon dioxide | 
| 06/15/1982 | CA1125728A1 Catalytic distillation process and catalyst | 
| 06/09/1982 | EP0053571A1 Purification of hydrocarbons by treatment with polyamines | 
| 06/09/1982 | EP0053293A1 Process for the thermal dimerization of butadiene | 
| 06/08/1982 | US4333801 Recovery of a cumene/alpha-methylstyrene fraction from a mixture thereof with phenol and water | 
| 06/02/1982 | EP0053086A1 Method for removal of sulfur compounds from a gas stream | 
| 06/02/1982 | EP0052838A1 Process for eliminating acid gases, especially carbon dioxyde, from gaseous mixtures | 
| 05/26/1982 | EP0052271A1 Process for the purification of hydrogen chloride produced by the thermal cracking of 1,2-dichloroethane | 
| 05/25/1982 | US4331826 Process for separating p-xylene from a hydrocarbon mixture | 
| 05/25/1982 | US4331824 Process for preparation of high purity isobutylene | 
| 05/25/1982 | US4331461 Cryogenic separation of lean and rich gas streams | 
| 05/25/1982 | CA1124187A1 N-paraffin - isoparaffin separation process | 
| 05/25/1982 | CA1124169A1 Cryogenic distillative separation of acid gases from methane | 
| 05/18/1982 | US4330305 Washing with a solvent of methyl isopropyl ethers of polyethylene glycols | 
| 05/11/1982 | US4329160 Suppression of COS formation in molecular sieve purification of hydrocarbon gas streams | 
| 05/11/1982 | CA1123412A1 Crystalline silicates | 
| 05/11/1982 | CA1123334A1 Cryogenic process for separating synthesis gas | 
| 05/04/1982 | US4328382 Process for separating off olefins from gases containing olefins | 
| 04/28/1982 | EP0050381A1 Process for the simultaneous separation in aromatics and non-aromatics of a heavy hydrocarbon stream and a light hydrocarbon stream | 
| 04/27/1982 | CA1122589A1 Process for obtaining natural terpenes having an antipsoriatic activity | 
| 04/27/1982 | CA1122553A1 Process for the separation of aromatic compounds from hydrocarbon mixtures |