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Class Information
Number: 585/868
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By addition of extraneous agent, e.g., solvent, etc. > Inorganic o-containing agent
Description: Subject matter in which an extraneous agent added to purify, separate, or recover the hydrocarbon is inorganic and contains oxygen, e.g., water, phosphoric acid, etc.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8658750 System and method for selective trimerization Feb. 25, 2014
7989668 Lowering nitrogen-containing Lewis bases in molecular sieve oligomerisation Aug. 2, 2011
7923595 Process for the treatment of a product stream Apr. 12, 2011
7914669 Reactive extraction of sulfur compounds from hydrocarbon streams Mar. 29, 2011
7507869 Method for extracting oil from plant material Mar. 24, 2009
7326822 Method for treating sour gas Feb. 5, 2008
7304124 Process for stripping volatile substances from dispersion comprising polymer particles and process for producing toner Dec. 4, 2007
7038101 Method for product separation and purification in iso-butylene dimerization process May. 2, 2006
6844480 Method of separating dimethyl ether from an olefin stream Jan. 18, 2005
6734333 Recovery of tertiary butyl alcohol May. 11, 2004
6596913 Recovery of tertiary butyl alcohol Jul. 22, 2003
6559248 Process of removing contaminants from an olefin stream using extractive distillation May. 6, 2003
6476284 Method of dehalogenating hydrocarbon containing carbon-carbon double bond Nov. 5, 2002
6459009 Two-stage quench tower for use with oxygenate conversion process Oct. 1, 2002
6245956 Method for separating sulfone from a hydrocarbon stream having a small concentration of sulfone Jun. 12, 2001
5990372 Adsorbent for the removal of trace quantities from a hydrocarbon stream and process for its use Nov. 23, 1999
5877385 Process including extractive distillation and/or dehydrogenation to produce styrene from petroleum feedstock including ethyl-benzene/xylene mixtures Mar. 2, 1999
5866750 Method for removal of metal alkoxide compounds from liquid hydrocarbon Feb. 2, 1999
5861473 Method for cleaning elastomeric articles Jan. 19, 1999
5849982 Recovery of styrene from pyrolysis gasoline by extractive distillation Dec. 15, 1998
5720857 Separation of 1,2,4-trimethylbenzene from 1,2,3-trimethylbenzene by azeotropic distillation Feb. 24, 1998
5453561 Reactive separation process Sep. 26, 1995
5414193 Removal of organic volatiles from polymer solutions and dispersions May. 9, 1995
5336832 Recovery of HF from hydrocarbon streams Aug. 9, 1994
5322927 Method for producing polymers Jun. 21, 1994
5284993 Alkylation catalyst regeneration Feb. 8, 1994
5275702 Distillation method of separating organic solvents Jan. 4, 1994
5237122 Alkylation catalyst regeneration Aug. 17, 1993
5220105 Process for purifying d-limonene Jun. 15, 1993
5220100 Method of removing lithium compounds from a polymer Jun. 15, 1993
5220104 Method for the prevention of fouling in a caustic solution Jun. 15, 1993
5220103 Process for the preparation of a cumene feed for cumene oxidation Jun. 15, 1993
5191149 Method of refining liquified petroleum gases into aerosol propellants Mar. 2, 1993
5177297 Method of removing a polymerization catalyst Jan. 5, 1993
5177301 Method of separating isobutylene from a C-4 hydrocarbon fraction using a heteropoly acid on an inert support Jan. 5, 1993
5162597 Olefin disproportionation and application thereof Nov. 10, 1992
5157205 Process for removing aldehydes and/or vinyl esters from gaseous or liquid process streams Oct. 20, 1992
5120902 Process for the preparation of a cumene feed for cumene oxidation Jun. 9, 1992
5120901 Olefin purification process Jun. 9, 1992
5057291 Oxygen removal from gas streams Oct. 15, 1991
4956513 Recovery of BF.sub.3 from olefin oligomer process Sep. 11, 1990
4940833 Olefin monomer separation process Jul. 10, 1990
4940831 Purification of cis-olefins Jul. 10, 1990
4864072 Solvent recovery from solutions of organic aluminum compound Sep. 5, 1989
4822578 Removal of hydrocarbon impurities from natural gas-derived methane and/or ethane Apr. 18, 1989
4781820 Aromatic extraction process using mixed polyalkylene glycols/glycol ether solvents Nov. 1, 1988
4748292 Method for removing polyhalogenated hydrocarbons from non-polar organic solvent solutions May. 31, 1988
4652343 Process for the separation of mixtures of paraffin or respectively paraffins of 6-14 carbon atoms and alcohol or respectively alcohols of 4-8 Mar. 24, 1987
4642408 Method for the removal of nickel, aluminum and chlorine from olefin oligomers Feb. 10, 1987
4593148 Process for removal of arsine impurities from gases containing arsine and hydrogen sulfide Jun. 3, 1986

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