Patents
Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802)
12/1980
12/16/1980CA1091700A1 Selective hydrogenation process
12/16/1980CA1091616A1 Polymerization inhibitor for vinyl aromatic compounds
12/16/1980CA1091615A1 Use of n-methyl-morpholine-3-one in the extractive distillation of hydrocarbons
12/10/1980EP0020051A1 Process for the purification of non-reacting gases
12/09/1980US4238463 Method for desulfurizing gases with iron oxide
12/09/1980US4238321 Selective adsorption on a molecular sieve; desorption by hydrogen gas
12/02/1980US4237331 Separating isobutylenes from an olefin stream by forming carbonyl compounds in the presence of a catalyst comprising a palladium component, a copper component and a boric acid
12/02/1980US4237330 Isolation of butadiene from a C4 -hydrocarbon mixture
12/02/1980US4237326 Solution of methylated benzoquinone-4-oxime
12/02/1980CA1090831A1 Process for obtaining isobutylene of a purity higher than 99.5 wt.
12/02/1980CA1090697A1 Ethylene separation process
11/1980
11/27/1980WO1980002558A1 Separating ethane from methane
11/25/1980US4236037 Process for the separation of olefins
11/25/1980US4235613 Preparation of sales gas
11/18/1980US4234750 HF Alkylation process
11/18/1980US4234460 Active carbon, copper
11/18/1980US4234410 Hydrogenation
11/18/1980CA1089880A1 Polymerization inhibitor for vinyl aromatic compounds
11/12/1980EP0018680A1 A process for the separation of para-xylene
11/11/1980US4233141 Process for removal of carbonyl sulfide in liquified hydrocarbon gases with absorption of acid gases
11/11/1980US4233038 Multizonal molecular sieve regeneration, countercurrent, cocurrent
11/11/1980CA1089194A1 Process for simultaneous removal of hydrogen sulfide and water from a gas mixture without substantial removal of carbon dioxide or hydrocarbons
11/04/1980US4232182 Process for purifying isoprene
11/04/1980US4232177 Catalytic distillation process
10/1980
10/29/1980EP0018183A1 Process for the purification of natural gas
10/28/1980US4230897 Process for selectively hydrogenating a hydrocarbon cut containing at least one diolefinic hydrocarbon and at least one acetylenic hydrocarbon using a palladium catalyst with crystallites of at least 50 angstroms
10/28/1980US4230894 Isomer separation by catalytic cracking using a selective zeolite
10/28/1980US4230666 Hydrocarbon purification apparatus
10/28/1980US4230638 Separation of cyclohexylbenzene from a cyclohexylbenzene-cyclohexanone-phenol admixture
10/28/1980US4230535 Heat exchanging, condensation
10/28/1980US4230469 Distillation of methane from a methane-containing crude gas
10/21/1980US4229612 Using clays as adsorbents prevents hydrogenation catalyst poisoning
10/21/1980US4229607 Process for recovery of ethylene oligomers
10/15/1980EP0017297A1 Cryogenic process for separating synthesis gas
10/15/1980EP0017174A1 Process for separating a gaseous mixture
10/15/1980EP0017118A1 Process for obtaining a conjugated diolefin from a C 4 or C 5 hydrocarbon mixture
10/15/1980EP0017116A1 Process for obtaining a conjugated diolefin from a mixture containing C 4- or C 5-hydrocarbons
10/14/1980US4227992 Process for separating ethylene from light olefin mixtures while producing both gasoline and fuel oil
10/14/1980US4227891 Scrubbing with plasticizer absorbent, vacuum distillation, distillation
10/07/1980CA1087086A1 Process for treating pressurized gases to remove unwanted components
10/01/1980EP0016474A1 Process for obtaining a conjugated diolefin from a C 4 or C 5 hydrocarbon mixture
10/01/1980EP0016284A1 Process for the production of a sulphur-free butene-1 rich stream
09/1980
09/30/1980CA1086777A1 Process for removing unwanted acid substances from reaction products
09/30/1980CA1086673A1 Three stage catalytic treatment, under hydrogen pressure of highly unsaturated heavy cuts
09/23/1980CA1086330A1 Process for the addition of organic acids to acetylenic compounds contained in inorganic or organic hydrocarbon streams
09/18/1980WO1980001909A1 Method of separation of isobutylene from c4 hydrocarbon fraction
09/17/1980EP0015831A1 Process for the preparation of at least partially sulfonated naphthalene, and use of this product in the purification of naphthalene
09/17/1980EP0015513A1 Process for obtaining isobutene from mixtures of C4-hydrocarbons containing isobutene
09/16/1980CA1085879A1 Continuous process for the removal of non-paraffinic hydrocarbons from paraffinic hydrocarbons
09/09/1980CA1085309A1 Process for separating para-xylene
09/03/1980EP0014770A1 Process for working up the cumene recovered from the Hock-synthesis of phenol
08/1980
08/19/1980US4218570 Method for purification of organic reaction products
08/19/1980US4218229 Separation of ethylene-containing hydrocarbon mixtures by low temperature rectification
08/19/1980US4217759 Cryogenic process for separating synthesis gas
08/12/1980CA1083612A1 Method of reducing the alpha-acetylene content of hydrocarbon
08/12/1980CA1083611A1 1-alkyl-4-isopropylbenzene desorbents for para-xylene
08/05/1980US4216345 By chlorination of linear paraffins then catalytic alkylation of benzene, purified with molecular sieves to provide an odorless product
08/05/1980CA1083067A1 Temperature control of integrated fractionation and claytreating of hydrocarbons
07/1980
07/29/1980US4215066 Binuclear rhodium complex as a hydroformylation and hydrogenation catalyst
07/29/1980US4215011 Cloth pockets
07/29/1980CA1082745A1 Method for the removal of carbonyl sulfide from liquid propane
07/29/1980CA1082744A1 Process for the separation of olefins
07/23/1980EP0013286A1 Hydrogenation catalyst, its preparation and use
07/22/1980CA1081918A1 Inert removal from chlorinated hydrocarbon production system
07/09/1980EP0013049A1 Process for acid gas removal
07/09/1980EP0012986A1 Process for separating and recovering gaseous components from a gas mixture by physical washing
07/08/1980CA1081130A1 Process for separating normal and isoparaffins
07/01/1980US4210771 Or normal hydrocarbon feedstock blended with the zeolite desorption effluent
07/01/1980US4210426 Process for recovering propene and propene/propane mixtures from the off-gases from the hydroformylation of propene
07/01/1980CA1080755A1 Fractionation of aromatic streams
07/01/1980CA1080442A1 Elimination of assine
06/1980
06/25/1980EP0012613A1 A process for producing 3-alkylphenols and 1,3-dihydroxybenzene
06/25/1980EP0012570A2 Selective reaction of 1,4-disubstituted benzene compounds
06/24/1980US4209656 Sulfuric acid catalyzed alkylation process
06/24/1980US4209499 From choline chloride
06/24/1980CA1080133A1 Removal of h2s and/or co2 from a light hydrocarbon stream by use of gas permeable membrane
06/24/1980CA1080115A1 Distillation of methane from a methane-containing crude gas
06/17/1980US4208541 Method for the removal of carbonyl sulfide from liquid propane
06/17/1980US4208540 Process for separation and recovery of isobutene
06/17/1980US4208305 Crystalline silicates and process of preparation
06/17/1980US4208268 Method of processing thermal cracked by-product oil
06/17/1980CA1079494A1 Adsorption-absorption vapor recovery system
06/11/1980EP0011997A1 Method for removing hydrogen sulphide from gaseous mixtures containing hydrogen sulphide and carbon dioxide
06/10/1980CA1079179A1 Method for separating carbon dioxide from methane
05/1980
05/27/1980US4205195 Process for the dimerization of C8 -C20 olefins and the olefin dimers obtained thereby
05/27/1980US4205189 Method for producing 3-alkylphenols and 1,3-dihydroxybenzene
05/27/1980CA1078300A1 Purification of natural gas
05/27/1980CA1078145A1 Removal of co2 and/or h2s from cracked gases
05/20/1980US4203742 Heat exchanging, liquefaction
05/20/1980US4203741 Separate feed entry to separator-contactor in gas separation
05/14/1980EP0010939A1 Process for the recovering of ethane and heavier hydrocarbon components from methane-rich gases
05/13/1980CA1077401A1 Separation and recovery of ethylbenzene from c8 aromatic mixtures using rubidium-x sieves
05/06/1980US4201633 Solvent extraction using n,n'-dimetnylethylene ures
05/06/1980CA1077066A1 Process for the direct separation of isobutylene from mixtures of hydrocarbons
04/1980
04/30/1980EP0010223A1 Process for decomposing a gas mixture
04/16/1980EP0009630A1 Process for obtaining butadiene from a mixture of C4-hydrocarbons
04/15/1980CA1075721A1 Process for the addition of alcohols to acetylenic compounds contained in organic or inorganic hydrocarbon streams
04/15/1980CA1075720A1 Method for quenching cracked gases
04/15/1980CA1075630A1 Use of water/methanol mixtures as solvents for aromatics extraction
04/08/1980US4197413 Alkylation over selective zeolite, oxidation to hydroperoxide, rearrangement