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Class Information
Number: 568/918
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) > Acyclic > Purification or recovery > By plural liquid phase separation
Description: Processes wherein the -OH containing compound is recovered from a plural phase liquid mixture in which one phase has a high concentration of the -OH containing compound and another phase has a low concentration of the -OH containing compound.










Sub-classes under this class:

Class Number Class Name Patents
568/919 Alkali metal containing compound in one phase 11


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8704014 Process for purifying ethanol Apr. 22, 2014
8704015 Process for recovering ethanol Apr. 22, 2014
8653308 Process for utilizing a water stream in a hydrolysis reaction to form ethanol Feb. 18, 2014
8617861 Method for producing butanol using extractive fermentation with electrolyte addition Dec. 31, 2013
8580038 Process for the recovery of a fermentation product Nov. 12, 2013
8575405 Reducing acetals during ethanol separation process Nov. 5, 2013
8569552 Recovery of butanol from a mixture of butanol, water, and an organic extractant Oct. 29, 2013
8563788 Recovery of butanol from a mixture of butanol, water, and an organic extractant Oct. 22, 2013
8558034 Reducing acetals during ethanol separation process using high pressure distillation column Oct. 15, 2013
8558037 Method of producing butanol Oct. 15, 2013
8552224 Processes for maximizing ethanol formation in the hydrogenation of acetic acid Oct. 8, 2013
8546622 Process for making ethanol from acetic acid using acidic catalysts Oct. 1, 2013
8481792 Reducing acetals and/or esters during ethanol separation process Jul. 9, 2013
8455703 Use of ionic liquids with tetracyanoborate anions as a solvents for extraction of alcohols from aqueous solutions Jun. 4, 2013
8440869 Use of ionic liquids containing tricyanomethide anions as solvents for the extraction of alcohols from aqueous solutions May. 14, 2013
8440866 Process for separating ethanol having low acid May. 14, 2013
8399719 Process for producing a water stream from ethanol production Mar. 19, 2013
8373008 Recovery of butanol from a mixture of butanol, water, and an organic extractant Feb. 12, 2013
8373009 Recovery of butanol from a mixture of butanol, water, and an organic extractant Feb. 12, 2013
8344189 Processes for the recovery of fuel-grade ethanol from dilute aqueous streams Jan. 1, 2013
8318988 Process for purifying a crude ethanol product Nov. 27, 2012
8314272 Process for recovering ethanol with vapor separation Nov. 20, 2012
8309773 Process for recovering ethanol Nov. 13, 2012
8304587 Process for producing ethanol using an extractive distillation column Nov. 6, 2012
8304586 Process for purifying ethanol Nov. 6, 2012
8288596 Manufacture of purified alcohols Oct. 16, 2012
8273927 Alcohol fractionation Sep. 25, 2012
8222466 Process for producing a water stream from ethanol production Jul. 17, 2012
8143460 Apparatus and method for increasing alcohol yield from grain Mar. 27, 2012
8129573 Method for purifying fermentation alcohol Mar. 6, 2012
8088958 Methods for recovery of alcohols from dilute aqueous alcohol feed streams Jan. 3, 2012
8053610 Method for purifying fermentation alcohol Nov. 8, 2011
7834225 Method and device for separation of liquid mixtures without thermal distillation Nov. 16, 2010
7795376 Single solvent polymer extraction methods Sep. 14, 2010
7667082 Apparatus and method for increasing alcohol yield from grain Feb. 23, 2010
7332092 Method of separating E and Z isomers of an alkene alcohol and derivatives thereof Feb. 19, 2008
7301055 Process for removing methanol from formaldehyde-containing solutions Nov. 27, 2007
7211703 Method of separating E and Z isomers of an alkene alcohol and derivatives thereof May. 1, 2007
7157610 Process for recovering methanol Jan. 2, 2007
7141611 High molecular weight primary aliphatic alcohols obtained from natural products and uses thereof Nov. 28, 2006
7122709 Method for obtaining ethanol Oct. 17, 2006
7034060 Polycosanols from Ericerus pela wax Apr. 25, 2006
7034193 Method for purifying spent acid Apr. 25, 2006
7002045 Ortho ester-based surfactant, its preparation and use Feb. 21, 2006
6984666 Polycosanols from Ericerus pela wax Jan. 10, 2006
6818799 Process for removing tar from spent acid Nov. 16, 2004
6770790 Purification of tertiary butyl alcohol Aug. 3, 2004
6683116 Polycosanols from Ericerus pela wax Jan. 27, 2004
6596776 High molecular weight primary aliphatic alcohols obtained from natural products and uses thereof Jul. 22, 2003
6572831 Materials treatment Jun. 3, 2003

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