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