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Class Information
Number: 585/853
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By addition of extraneous agent, e.g., solvent, etc. > Alkaline metal-containing
Description: Subject matter wherein an extraneous agent contains lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, calcium, strontium, or barium or a compound thereof.

Sub-classes under this class:

Class Number Class Name Patents
585/854 Elemental metal, oxide, or hydroxide 52

Patents under this class:

Patent Number Title Of Patent Date Issued
8080156 Mercury removal from crude oil Dec. 20, 2011
7919665 Mercury removal from hydrocarbons Apr. 5, 2011
7772336 Method for producing .alpha.-methylstyrene and heat-resistant styrene-based copolymer using the .alpha.-methylstyrene Aug. 10, 2010
7507869 Method for extracting oil from plant material Mar. 24, 2009
7473815 Process for removal of catalyst residues from poly-.alpha.-olefins Jan. 6, 2009
7135604 Process for separating carbon dioxide from an oxygenate-to-olefin effluent stream Nov. 14, 2006
7102049 Process for operating a quench device in an oxygenate-to-olefin production unit Sep. 5, 2006
5866750 Method for removal of metal alkoxide compounds from liquid hydrocarbon Feb. 2, 1999
5710357 Process for recovering olefins from cat-cracked gas without accumulating undesirable oxides of nitrogen Jan. 20, 1998
5639934 Process for the desulfurization of sulfur-containing compositions by hydrothermal reaction Jun. 17, 1997
5582808 Borohydrides to inhibit polymer formation in petrochemical caustic scrubbers Dec. 10, 1996
5510565 Mercury removal from liquid hydrocarbon fraction Apr. 23, 1996
5476987 Method of removing halogenated aromatic compound from hydrocarbon oil Dec. 19, 1995
5444176 Process for recovering olefins from cat-cracked gas without accumulating undesirable oxides of nitrogen Aug. 22, 1995
5378783 Dicyclopentadiene activation method and polymerization composition Jan. 3, 1995
5336835 Product/process/application for removal of mercury from liquid hydrocarbon Aug. 9, 1994
5292992 Process for removing conjugated dienes from alpha-olefins Mar. 8, 1994
5245095 Extraction of carotenoids from natural sources Sep. 14, 1993
5223589 Process for separating durene from substituted benzene hydrocarbons Jun. 29, 1993
5220104 Method for the prevention of fouling in a caustic solution Jun. 15, 1993
5191149 Method of refining liquified petroleum gases into aerosol propellants Mar. 2, 1993
5177299 Recovery of high octane components from isomerates Jan. 5, 1993
5157205 Process for removing aldehydes and/or vinyl esters from gaseous or liquid process streams Oct. 20, 1992
5146041 Method of separating isobutylene from a C-4 hydrocarbon fraction using montmorillonite catalysts Sep. 8, 1992
5106484 Purifying feed for reforming over zeolite catalysts Apr. 21, 1992
4938935 Alteration of the character of hydrogen fluoride droplets rendering them more susceptible to a water drench Jul. 3, 1990
4808299 Removal of copper and iron from oil Feb. 28, 1989
4772758 Process for the production of technically pure, chlorine-free cyclohexadecadiene Sep. 20, 1988
4642408 Method for the removal of nickel, aluminum and chlorine from olefin oligomers Feb. 10, 1987
4571445 Process for removal of sulfur compounds from conjugated diolefins Feb. 18, 1986
4455447 Process for upgrading hydrocarbon streams comprising conjugated diolefins Jun. 19, 1984
4438289 Reduction of cyclopentadiene from isoprene streams Mar. 20, 1984
4433194 Purification of cyclohexane Feb. 21, 1984
4392004 Reduction of cyclopentadiene from isoprene streams Jul. 5, 1983
4161496 Novel method of treating a charge hydrocarbon stream containing isobutene and also butadiene Jul. 17, 1979
4125568 Removal of carbonyl impurities Nov. 14, 1978
4104318 Process for removing organic oxygen-containing impurities from an organic composition in the presence of steam Aug. 1, 1978
4076762 Continuous process for the removal of other hydrocarbons from saturated aliphatic hydrocarbons Feb. 28, 1978
4066713 Process for the addition of organic acids to acetylenic compounds contained in inorganic or organic hydrocarbon streams Jan. 3, 1978
4060567 Method of reducing .alpha.-acetylene content of hydrocarbon Nov. 29, 1977
4045506 Separation of hydrocarbon mixtures by catalytic dealkylation Aug. 30, 1977
4024170 Liquid clathrates May. 17, 1977
3998902 Purification of unsaturated compounds Dec. 21, 1976
3964993 Removal of HF from the sludge resulting from the treatment of a hydrocarbon Jun. 22, 1976

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