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Class Information
Number: 585/864
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By addition of extraneous agent, e.g., solvent, etc. > Organic agent
Description: Subject matter wherein the agent is a carbon compound characterized by the presence in a molecule thereof of two carbon atoms bonded together or one atom of carbon bonded to at least one atom of hydrogen or halogen or one atom of nitrogen by a single or double bond.

Sub-classes under this class:

Class Number Class Name Patents
585/866 Acid, anhydride, ester or ether 123
585/865 Heterocyclic or polymeric 133
585/867 Hydrocarbon 131

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8673134 Removal of nitrogen compounds from FCC distillate Mar. 18, 2014
8608950 Process for removing metals from resid Dec. 17, 2013
8608952 Process for de-acidifying hydrocarbons Dec. 17, 2013
8608949 Process for removing metals from vacuum gas oil Dec. 17, 2013
8608943 Process for removing nitrogen from vacuum gas oil Dec. 17, 2013
8580107 Process for removing sulfur from vacuum gas oil Nov. 12, 2013
8574427 Process for removing refractory nitrogen compounds from vacuum gas oil Nov. 5, 2013
8574426 Extraction of polycyclic aromatic compounds from petroleum feedstocks using ionic liquids Nov. 5, 2013
8455709 Heavy hydrocarbon removal systems and methods Jun. 4, 2013
8058498 Device for removing oxygen-containing organic compounds from mixtures of various hydrocarbon compounds Nov. 15, 2011
8013197 Absorption and conversion of acetylenic compounds Sep. 6, 2011
7968758 Process for the dissociation of MTBE Jun. 28, 2011
7956230 Reduction of organic halide contamination in hydrocarbon products Jun. 7, 2011
7910786 Process for the dissociation of MTBE Mar. 22, 2011
7875759 Process for extracting natural gas liquids from natural gas Jan. 25, 2011
7744749 Diesel oil desulfurization by oxidation and extraction Jun. 29, 2010
7737318 Process for fine purification of 1-butenic streams Jun. 15, 2010
7692053 Process for obtaining crude 1,3-butadiene from a C.sub.4 cut Apr. 6, 2010
7582312 Methods to produce lung surfactant formulations via lyophilization and formulations and uses thereof Sep. 1, 2009
7553406 Process for removing polar impurities from hydrocarbons and mixtures of hydrocarbons Jun. 30, 2009
7465846 Extraction of oxygenates from a hydrocarbon stream Dec. 16, 2008
7462277 Continuous method for separating a C.sub.4 cut Dec. 9, 2008
7442847 Removing diamondoid components from natural gas at reduced temperatures Oct. 28, 2008
7435318 Ionic liquids as selective additives for separation of close-boiling or azeotropic mixtures Oct. 14, 2008
7432411 Continuous method for obtaining butenes from a C.sub.4 fraction Oct. 7, 2008
7388121 Process to separate butadiene dimers Jun. 17, 2008
7355087 Production of 1-alkenes from mixed olefin streams using catalytic distillation Apr. 8, 2008
7304200 Method for separation of substances by extraction or by washing them with ionic liquids Dec. 4, 2007
7223331 Method for settling suspended fine inorganic solid particles from hydrocarbon slurry and additive for use therewith May. 29, 2007
7205438 Solvent recovery blends from diene production Apr. 17, 2007
7204927 Settling aids for solids in hydrocarbons Apr. 17, 2007
7182839 Preventing deposition of fouling agents onto equipment Feb. 27, 2007
7161055 Method of extracting and isolating minor components from vegetable oil Jan. 9, 2007
7141712 Recovery of palm phytonutrients Nov. 28, 2006
7097815 Hydroprocessing process Aug. 29, 2006
7060866 High pressure separation of dimethyl ether from an olefin stream Jun. 13, 2006
7048847 Settling aids for solids in hydrocarbons May. 23, 2006
6866772 Extraction of aromatics from hydrocarbon oil using furfural-co-solvent extraction process Mar. 15, 2005
6863779 Distillation of styrene Mar. 8, 2005
6844480 Method of separating dimethyl ether from an olefin stream Jan. 18, 2005
6838587 Method of removing oxygenate contaminants from an olefin stream Jan. 4, 2005
6797846 Fibrous crystal aggregates, preparation method thereof and use thereof Sep. 28, 2004
6781026 Aromatics purification from petroleum streams Aug. 24, 2004
6734332 Process for enriching cis or trans-isomers in an olefin stream May. 11, 2004
6720468 Process for the removal of conjugated olefins from a monoolefin stream Apr. 13, 2004
6664433 Process for the purification of aromatic hydrocarbons and process for the preparation of high-purity aromatic hydrocarbons Dec. 16, 2003
6617483 Polyalkylene glycol compositions for enhanced aromatic extraction Sep. 9, 2003
6613197 Method for isolation of barely volatile organic compounds Sep. 2, 2003
6572831 Materials treatment Jun. 3, 2003
6570045 Methods of solidifying low-boiling-point hydrocarbon and handling the same, and regeneration thereof May. 27, 2003

1 2 3 4 5

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