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Class Information
Number: 585/845
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By addition of extraneous agent, e.g., solvent, etc. > Cu
Description: Subject matter wherein an extraneous agent contains copper or a compound thereof.










Sub-classes under this class:

Class Number Class Name Patents
585/846 Ammoniacal, e.g., cu ammonium acetate (caa), etc. 4
585/849 Cu halide with added material other than water 18
585/848 Plural metal or nonhalide cu compound-containing 50


Patents under this class:

Patent Number Title Of Patent Date Issued
8143470 Method of purifying olefins using pyrrolidinium-based or piperidinium-based ionic liquids comprising copper (I) halide Mar. 27, 2012
7411107 Alkene separation process Aug. 12, 2008
7361800 Process for the separation of olefins from paraffins using membranes Apr. 22, 2008
7357902 Process for the removal of oxygen from olefin-containing process streams Apr. 15, 2008
7314965 Catalysts containing copper and zinc for the purification of ethylene Jan. 1, 2008
7019188 Use of ionic liquids to separate olefins, diolefins and aromatics Mar. 28, 2006
6849774 Separation of dienes from olefins using ionic liquids Feb. 1, 2005
6395952 Chemical absorption process for recovering olefins from cracked gases May. 28, 2002
6339182 Separation of olefins from paraffins using ionic liquid solutions Jan. 15, 2002
6297414 Deep selective hydrogenation process Oct. 2, 2001
5866749 Sulfur and thiol removal from reactive hydrocarbons Feb. 2, 1999
5859304 Chemical absorption process for recovering olefins from cracked gases Jan. 12, 1999
5639935 Process for recovering olefins from gaseous mixtures Jun. 17, 1997
5625116 Process for the removal of carbon monoxide from alpha-olefins and saturated hydrocarbons Apr. 29, 1997
5516966 Methods of preparing cuprous and cupric carboxylates May. 14, 1996
5498824 Methods of preparing cuprous and cupric carboxylates Mar. 12, 1996
5446232 Removing oxygen from hydrocarbon gases Aug. 29, 1995
5421994 Process for the recovery of mercury and arsenic in a hydrocarbon cut Jun. 6, 1995
5401392 Process for eliminating mercury and possibly arsenic in hydrocarbons Mar. 28, 1995
5245106 Method of eliminating mercury or arsenic from a fluid in the presence of a mercury and/or arsenic recovery mass Sep. 14, 1993
5202521 Monoolefin/paraffin separation by selective absorption Apr. 13, 1993
5191153 Method for preparing olefin complexing reagents and use thereof Mar. 2, 1993
5157203 Separation of organic sulfides from olefins Oct. 20, 1992
4943673 Novel metal-diketone absorbents for olefins Jul. 24, 1990
4911825 Process for elimination of mercury and possibly arsenic in hydrocarbons Mar. 27, 1990
4691074 Monochlorobiphenyl:cuprous aluminum tetrachloride Sep. 1, 1987
4605812 Process for removal of arsenic from gases Aug. 12, 1986
4599472 Purification of iodine-containing mixtures and compositions useful therefor Jul. 8, 1986
4593148 Process for removal of arsine impurities from gases containing arsine and hydrogen sulfide Jun. 3, 1986
4493906 Catalyst for the selective hydrogenation of acetylenes Jan. 15, 1985
4471152 Separation of olefin mixtures by Cu (I) complexation Sep. 11, 1984
4458095 Use of zinc and copper (I) salts to reduce sulfur and nitrogen impurities during the pyrolysis of plastic and rubber waste to hydrocarbons Jul. 3, 1984
4440956 Selective hydrogenation of acetylenes in the presence of butadiene and catalyst used in the hydrogenation Apr. 3, 1984
4434317 Separation and recovery of unsaturated hydrocarbons by copper (I) complexes Feb. 28, 1984
4424121 Selective removal of nitrogen-containing compounds from hydrocarbon mixtures Jan. 3, 1984
4400564 Separation of monoolefins from diolefins Aug. 23, 1983
4398052 Separation of monoolefins from other monoolefins Aug. 9, 1983
4385005 Process for separating unsaturated hydrocarbons using copper or silver complexes with fluorinated diketonates May. 24, 1983
4266086 Process for removing .alpha.-acetylenes from diolefins May. 5, 1981
4237331 Olefin oxidation process Dec. 2, 1980
4105588 Preparation of copper and silver particles for ethylene purification Aug. 8, 1978
3979280 Separation of unsaturated compounds from liquid hydrocarbon mixtures containing same Sep. 7, 1976











 
 
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