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Class Information
Number: 568/810
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Oxygen containing (e.g., perchlorylbenzene, etc.) > Hydroxy containing (h of -oh may be replaced by a group ia or iia light metal) > Benzene ring containing > Purification or recovery
Description: Processes which include separating the compound from impurities or from the reaction mixture.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8212085 Method for purifying optically active 1-(2-trifluoromethylphenyl)ethanol Jul. 3, 2012
8134032 Crystalline modifications of (1R,2R)-3-(3-dimethylamino-1-ethyl-2-methyl-propyl)-phenol Mar. 13, 2012
8013191 Method for removing impurities from phenol Sep. 6, 2011
7977516 Process of obtainment of trans-resveratrol and/or emodin and nutraceutical compositions containing them Jul. 12, 2011
7795478 Process for producing optically active fluorobenzyl alcohol Sep. 14, 2010
7781623 Method for producing cardanol (II) Aug. 24, 2010
7666977 Poly(carbonate-co-urea) copolymers and melt transesterification method of preparing these copolymers Feb. 23, 2010
RE40938 Process for isolation, purification, and recrystallization of lutein from saponified marigold oleoresin and uses thereof Oct. 13, 2009
RE40931 Process for isolation, purification, and recrystallization of lutein from saponified marigold oleoresin and uses thereof Oct. 6, 2009
RE40912 Process for isolation, purification, and recrystallization of lutein from saponified marigold oleoresin and uses thereof Sep. 8, 2009
7244772 Process for preparing polyurethane polyol and rigid foams therefrom Jul. 17, 2007
6660884 Catalysts, methods for making said catalysts, and methods for making chiral compounds with high enantioselectivity Dec. 9, 2003
6586639 Functional alcohol releasing substance Jul. 1, 2003
6491795 Process for recovering benzyl benzoate Dec. 10, 2002
6437176 Method for preparing aromatic carboxylic acids, aromatic aldehydes, and aromatic alcohols Aug. 20, 2002
6423290 Method for recovering an organic solvent from an acidic waste stream such as in integrated chip manufacturing Jul. 23, 2002
6361983 Process for the isolation of 1,3-propanediol from fermentation broth Mar. 26, 2002
6326521 Process for the preparation of benzyl alcohol Dec. 4, 2001
6218581 Process of producing optically active alcohol Apr. 17, 2001
6207867 Method for purifying .beta.-phenylethyl alcohol Mar. 27, 2001
6197994 Silica gel supported bis-cinchona alkaloid derivatives and a preparation method and use thereof Mar. 6, 2001
6187965 Process for recovering high boiling solvents from a photolithographic waste stream comprising at least 10 percent by weight of monomeric units Feb. 13, 2001
6166260 Tandem reduction and host-guest complexation Dec. 26, 2000
5994597 Process for recovering high boiling solvents from a photolithographic waste stream comprising less than 10 percent by weight monomeric units Nov. 30, 1999
5986095 Enantioselective preparation of halophenyl alcohols and acylates Nov. 16, 1999
5981807 Production of optically active 2-halo-1-(substituted phenyl)ethanol and substituted styrene oxide Nov. 9, 1999
5965780 Method for extracting 2-phenylethanol Oct. 12, 1999
5919991 Solid phase extraction of phenethyl alcohol Jul. 6, 1999
5888400 Process for preparing low-salt preparations of condensation products Mar. 30, 1999
5756862 Production of optically active 2-halo-1-(substituted phenyl)ethanol and substituted styrene oxide May. 26, 1998
5714642 Resolution of immixtures of stereoisomeric alcohols Feb. 3, 1998
5679766 Purification process of novolar resins using acid treated chelating cation exchange resin Oct. 21, 1997
5600027 Process for producing optically active alcohol containing phenyl group Feb. 4, 1997
5538599 Phenol separation Jul. 23, 1996
5538599 Phenol separation Jul. 23, 1996
5449841 Process for purifying polyols Sep. 12, 1995
5395983 Process for producing 1-phenyl-1,3-propanediols having high optical purtiy Mar. 7, 1995
5395985 Compound and separating agent Mar. 7, 1995
5312950 Method for purification of alcohols May. 17, 1994
5262571 Cycloalkyl-based chiral auxiliaries and method making the same Nov. 16, 1993
5233103 Preparation of organoaluminum compounds and linear alcohols derived therefrom Aug. 3, 1993
5171868 Epoxidate treatment Dec. 15, 1992
5118881 Process for preparing environmentally safe dicofol and its formulations Jun. 2, 1992
5095155 Process for the separation of isomers of diastereomeric alcohols Mar. 10, 1992
5081319 Process for the preparation of 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethanol Jan. 14, 1992
5075512 Process for purifying technical grade 1,1-bis(chlorophenyl)-2,2,2-trichloroethanol Dec. 24, 1991
5059718 Oxo process for increasing yield of oxo alcohol Oct. 22, 1991
5043495 Process of separation and purification of a propargyl alcohols Aug. 27, 1991
5019658 Separation of pure optical stereoisomers by pressure crystallization May. 28, 1991
4990692 Removal of cyclohexanol Feb. 5, 1991

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