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Class Information
Number: 585/803
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By plural serial diverse separations > To recover alicyclic
Description: Subject matter wherein a recovered material is an alicyclic hydrocarbon, e.g., a terpene, carotene, etc.

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8222474 Fractional extraction of butadiene Jul. 17, 2012
7973209 Fractionation recovery processing of light olefins free of carbon dioxide Jul. 5, 2011
7959766 Method for obtaining cyclododecatriene by evaporation Jun. 14, 2011
7820033 Method for adjusting yields in a light feed FCC reactor Oct. 26, 2010
7696396 Method for extraction and concentration of carotenoids using supercritical fluids Apr. 13, 2010
7638662 Emollients and cosmetic preparations Dec. 29, 2009
7402716 Hybrid cubic/hexagonal diamondoids Jul. 22, 2008
7094937 Compositions comprising cyclohexamantane Aug. 22, 2006
7034194 Compositions comprising decamantanes and processes for their separation Apr. 25, 2006
6909021 Method of extracting lutein from green plant materials Jun. 21, 2005
6861569 Processes for the purification of higher diamondoids and compositions comprising such diamondoids Mar. 1, 2005
6844477 Processes for the purification of higher diamondoids and compositions comprising such diamondoids Jan. 18, 2005
6831202 Compositions comprising octamantanes and processes for their separation Dec. 14, 2004
6828469 Compositions comprising heptamantane and processes for their separation Dec. 7, 2004
6815569 Compositions comprising tetramantanes and processes for their separation Nov. 9, 2004
6812371 Compositions comprising nonamantanes and processes for their separation Nov. 2, 2004
6812370 Compositions comprising hexamantanes and processes for their separation Nov. 2, 2004
6812001 Isolation of carotenoid crystals from microbial biomass Nov. 2, 2004
6805800 Method for recovering pigments from algal cultures Oct. 19, 2004
6737552 Method for extracting lutein from green plant materials May. 18, 2004
6576805 Cat cracker gas plant process for increased olefins recovery Jun. 10, 2003
6353144 Process for chromatographic separation of a C5-C8 feed or an intermediate feed into three effluents, respectively rich in straight chain, mono-branched and multi-branched paraffins Mar. 5, 2002
6271433 Cat cracker gas plant process for increased olefins recovery Aug. 7, 2001
6187903 Method of preparing dimeric fatty acids and/or esters thereof containing low residual interesters and the resulting dimeric fatty acids and/or dimeric fatty esters Feb. 13, 2001
6153804 Production of cyclopentane and/or cyclopentene from partially hydrogenated pyrolysis gasoline Nov. 28, 2000
6011192 Membrane-based conditioning for adsorption system feed gases Jan. 4, 2000
5965785 Amine blend neutralizers for refinery process corrosion Oct. 12, 1999
5962756 Natural carotenoid concentrates from plant material and a process for preparing the same Oct. 5, 1999
5789647 Process for the extraction of natural carotenoid dyes Aug. 4, 1998
5714664 Process using amine blends to inhibit chloride corrosion in wet hydrocarbon condensing systems Feb. 3, 1998
5714658 Process for the extraction of carotenes from natural sources Feb. 3, 1998
5659106 Catalytic distillation process for mercaptan and olefin removal Aug. 19, 1997
5461184 Method for diamondoid extraction using a solvent system Oct. 24, 1995
5458741 Separation of benzene from close boiling hydrocarbons by extractive distillation Oct. 17, 1995
5434329 Treatment of spent refinery caustic Jul. 18, 1995
5401891 Production of polymerization grade dicyclopentadiene Mar. 28, 1995
5245095 Extraction of carotenoids from natural sources Sep. 14, 1993
5245104 Method and apparatus for producing and separating diamondoid compounds from natural gas streams Sep. 14, 1993
H1185 Process for absorption of diamondoids from natural gas May. 4, 1993
5191062 Steam purging of granular EPDM resins Mar. 2, 1993
5157200 Process for the fractionation of a gaseous mixture containing hydrogen light aliphatic hydrocarbons and light aromatic hydrocarbons Oct. 20, 1992
5126274 Method and apparatus for measuring diamondoid compound concentration in hydrocarbonaceous gas streams Jun. 30, 1992
5120899 Diamondoid recovery from natural gas fields Jun. 9, 1992
5019665 Shape-selective process for concentrating diamondoid-containing hydrocarbon solvents May. 28, 1991
4982049 Purification of hydrocarbonaceous fractions Jan. 1, 1991
4952749 Removal of diamondoid compounds from hydrocarbonaceous fractions Aug. 28, 1990
4952747 Removal of diamondoid compounds from hydrocarbonaceous fractions Aug. 28, 1990
4952748 Purification of hydrocarbonaceous fractions Aug. 28, 1990
4915707 Process for purifying limonene for fuel and the like Apr. 10, 1990
4915784 Process and apparatus for removing contaminants from pulp digester vent gas Apr. 10, 1990

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