Patents
Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802)
03/1985
03/12/1985US4504593 Process for manufacturing supported bimetallic or plurimetallic catalysts comprising one or more metals from group VIII and at least one metal from group IV and the resultant catalysts thereof
03/12/1985US4504295 Nitrogen rejection from natural gas integrated with NGL recovery
03/12/1985US4504287 Method of purifying a gas mixture containing undesirable gas compounds
03/12/1985CA1183874A1 Process inhibitor for readily polymerizable ethylenically unsaturated aromatic compounds
03/05/1985US4503267 Extraction of phenolics from hydrocarbons
03/05/1985US4503265 Distillation, simultaneous secondary etherification
03/05/1985CA1183432A1 Polymer modification system for vinylaromatic monomer production apparatus
02/1985
02/26/1985US4501600 Process to separate nitrogen from natural gas
02/19/1985CA1182774A1 Obtaining a conjugated diolefin from a mixture of c.sub.4 or c.sub.5 hydrocarbons
02/14/1985WO1985000595A1 Process to separate nitrogen from natural gas
02/13/1985EP0133174A1 Process for separating aggressive gases from gas mixtures
02/13/1985EP0132984A1 Process to separate nitrogen from natural gas
02/13/1985EP0132915A1 Method of preparing solid adsorbent for unsaturated hydrocarbon and process for separation of unsaturated hydrocarbon from gas mixture
02/12/1985US4499321 Separation of isomers using a zeolite containing oxides of lithium and another metal
02/12/1985US4499315 Hydrogenation, aromatization
02/12/1985US4498910 Safe adsorption process for the separation of hydrocarbons from oxygen containing gas
02/05/1985US4497972 Process for the separation of ethylbenzene
02/05/1985US4497640 Process for the dehydration of gases containing hydrocarbons
02/05/1985CA1182038A1 Gas separation process
01/1985
01/29/1985US4496744 Multidentate macromolecular complex salt clathrates
01/29/1985US4496528 Process for the preparation of zeolite ZK 5
01/29/1985US4496381 Fractignal condenstion of cracked gases
01/29/1985CA1181772A1 Method for separating hydrocarbons by liquid extraction
01/22/1985CA1181387A1 Preparation of binderless 3a adsorbents
01/16/1985EP0131128A1 Nitrogen rejection from natural gas integrated with NGL recovery
01/15/1985US4493906 Copper on support
01/15/1985US4493715 Adsorption on alkali metal oxide modified alumina
01/09/1985EP0130850A1 Process for the presulfurization of hydrocarbon treatment catalysts
01/09/1985EP0130740A1 Separation of ortho aromatic isomers
01/09/1985EP0130672A1 Sorption fractionation process for olefin separation
01/09/1985EP0130244A1 Extractive distillation process for the purification of diolefins
01/08/1985US4492675 Inhibition of polymerization of undesirable thermal polymers
01/08/1985US4492613 Methanol, cyclohexane
01/02/1985EP0130043A2 Magnetizable adsorbents
01/02/1985EP0129900A2 Process for the recovery of 1-butene from mixtures of hydrocarbons containing 2-butenes
01/02/1985EP0129704A1 Separation of methane rich-gas, carbon dioxide and hydrogen sulfide from mixtures with light hydrocarbons
01/02/1985CA1180301A Process for separating relatively easily soluble hydrocarbons from a hydrocarbon mixture
01/01/1985US4491566 Automatic CO2 removal system and operation thereof
01/01/1985US4491563 Process for deodorizing a paraffinic hydrocarbon feedstock
01/01/1985US4491516 Petroleum hydrocarbons and water mixtures
01/01/1985US4490985 Method of dehydrating natural gas
12/1984
12/25/1984US4490572 Removal of organic fluorides from HF alkylation products
12/25/1984US4490481 Supported palladium-gold catalyst, and its manufacture
12/19/1984EP0128766A2 Process for preparation of high-silica faujasite type zeolite
12/19/1984EP0128580A1 Process for drying gas streams
12/18/1984US4488953 Purification of recycled paraffins in photochlorination process
12/18/1984US4488937 Separation of m-xylene from o-xylene by extractive distillation
12/11/1984US4487982 Inhibiting polymerization of vinyl aromatic monomers
12/11/1984US4487981 Adding n,n' dimer of phenothiazine and an alkyl catechol or alkyl hydroquinone
12/11/1984US4487688 Selective sorption of lubricants of high viscosity index
12/11/1984CA1179291A1 Distillation apparatus
12/06/1984WO1984004700A1 Method for purifying gas from sulphurous compounds
12/06/1984WO1984004699A1 Catalyst for the gaseous phase oxidation of sulphurous compounds
12/05/1984EP0127410A2 Selective catalytic dealkylation of 1,4-dialkylbenzene
12/05/1984EP0127087A1 Process for the separation of a mixture of C4 hydrocarbons mainly comprising n-butenes and butanes
12/04/1984US4486618 Process for separating C6 olefin hydrocarbons
12/04/1984CA1178919A1 Method and apparatus for inhibiting the formation of polymerized vinylaromatic compounds during distillative purification of vinylaromatic monomer
12/04/1984CA1178789A1 Removal of condensable aliphatic hydrocarbons and acidic gases from natural gas
11/1984
11/28/1984EP0126309A1 Process for recovering C4-hydrocarbons using a dephlegmator
11/27/1984US4484933 Purging, countercurrent circulation, cooling, fixed beds, molecular sieves, adsorption, heating, regeneration
11/21/1984EP0125833A2 Removal of impurities from hydrocarbons and alcohols
11/20/1984US4484015 Selective hydrogenation
11/20/1984CA1178290A1 Copper or silver complexes with fluorinated diketonates and unsaturated hydrocarbons
11/14/1984EP0125111A1 The separation of olefin mixtures by copper (I) complexation
11/14/1984EP0125110A1 Separation and recovery of carbon monoxide and unsaturated hydrocarbons by copper (I) complexes
11/14/1984EP0124835A2 BIS tertiary amino alkyl derivatives as solvents for acid gas removal from gas streams
11/13/1984US4482777 Separation of ortho bi-alkyl substituted monocyclic aromatic isomers
11/13/1984US4482776 Separation of ortho aromatic isomers by selective adsorption with an aluminophosphate
11/13/1984US4482775 Isomerization of C4 alkenes
11/06/1984US4481375 Binuclear rhodium complex as a hydroformylation and hydrogenation catalyst
11/06/1984CA1177438A1 Process for extractive distillation
11/06/1984CA1177381A1 Cryogenic process for removing acidic gases from gas mixtures
11/06/1984CA1177380A1 Cryogenic process for fractionally removing acidic gases from gas mixtures
10/1984
10/31/1984EP0123438A1 Separation of alkenes from alkadienes
10/30/1984US4479812 Sorption fractionation system for olefin separation
10/24/1984EP0122367A2 Distillation column
10/23/1984US4479023 Isobutylene, butadiene, alumina support, vapor phase
10/23/1984US4478723 Alternately supplying mixture of compounds and desorbent into absorbent column
10/23/1984US4478721 High efficiency continuous separation process
10/23/1984US4478720 Fractionation process for mixtures by elution chromatography with liquid in supercritical state and installation for its operation
10/16/1984US4476713 Liquid chromatographic separation of hydrocarbons
10/10/1984EP0121109A2 Process for the removal of CO2 and/or H2S from gases
10/09/1984US4476345 N-Paraffin-isoparaffin separation process using wash of recycle purge gas
10/09/1984US4476097 Acid containing hydrocarbon gas
10/09/1984US4476027 Precipitation as ferric sulfide and separation
10/09/1984CA1175863A1 Hf alkylation process and apparatus
10/02/1984US4474647 Distillation
10/02/1984US4474646 Dinitrophenois
10/02/1984CA1175339A1 Distillative separation of methane and carbon dioxide
10/02/1984CA1175210A1 Process for the purification of hydrogen chloride obtained by the thermal cracking of 1,2- dichloroethane
09/1984
09/26/1984EP0119789A2 Solid adsorbent for unsaturated hydrocarbon and process for separation of unsaturated hydrocarbon from gas mixture
09/26/1984EP0119389A1 Process for preventing the formation of polymeric by-products at the preparation of 5-vinyl-norbornene(2)
09/18/1984CA1174634A1 Extractive distilling with reworking of residue
09/12/1984EP0118354A1 Chemical process for the purification of a mixture of isoprene trimers
09/12/1984EP0118092A1 Process for removing a halogen component derived from a catalyst from an organic compound containing said halogen component
09/11/1984US4471153 Adding organoaluminum, zinc, or magnesium compound, an organonickel compound
09/11/1984US4471152 Separation of olefin mixtures by Cu (I) complexation
09/11/1984US4470879 Fractionator control in an alkylation process
09/04/1984US4469913 Separation of naphthalene derivatives
09/04/1984US4469911 Isobutene removal from C4 streams