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Class Information
Number: 568/754
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 > Phenols (h of -oh may be replaced by a group ia or iia light metal) > Purification or recovery > Of phenol prepared by cleavage of hydroperoxide or other peroxide
Description: Processes wherein the compound separated is one from the reaction mixture obtains by the catalytic decomposition of a hydroperoxide or some other peroxide.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8389776 Treatment of phenol Mar. 5, 2013
8298378 Method for treating waste water containing oxygen-containing compound having phenolic hydroxyl group of carbonyl group Oct. 30, 2012
7902408 BPA process improvement Mar. 8, 2011
7759524 Process for producing phenol and methyl ethyl ketone Jul. 20, 2010
7488853 Process for producing phenols Feb. 10, 2009
7446232 Process for oxidizing alkylaromatic compounds Nov. 4, 2008
7282613 Process for producing phenol and methyl ethyl ketone Oct. 16, 2007
7102036 Process and catalyst for purifying phenol Sep. 5, 2006
7067680 Process for preparing organic hydroperoxide having a reduced amount of contaminants Jun. 27, 2006
7034192 Method for removal of acetol from phenol Apr. 25, 2006
7019180 Method of purifying phenol Mar. 28, 2006
7002048 Method for removal of acetol from phenol Feb. 21, 2006
6984761 Co-production of phenol, acetone, .alpha.-methylstyrene and propylene oxide, and catalyst therefor Jan. 10, 2006
6965056 Removal of salts in the manufacture of phenolic compound Nov. 15, 2005
6824687 Extraction of phenol from wastewater Nov. 30, 2004
6825387 Low sodium cleavage product Nov. 30, 2004
6720461 Removal of salts in the manufacture of phenolic compound Apr. 13, 2004
6657087 Process and apparatus for the work-up by distillation of cleavage product mixtures produced in the cleavage of alkylaryl hydroperoxides Dec. 2, 2003
6635789 Production and purification of phenol Oct. 21, 2003
6630608 Process for preparing phenols Oct. 7, 2003
6620980 Method for recovery of phenol from aqueous streams Sep. 16, 2003
6583326 Process for separating phenol from a mixture comprising at least hydroxyacetone, cumene, water and phenol Jun. 24, 2003
6576798 Method and system for purifying cumene hydroperoxide cleavage products Jun. 10, 2003
6573408 System and method for purifying cumene hydroperoxide cleavage products Jun. 3, 2003
6489519 Process for removal of impurities from phenol by means of at least one acid catalyst Dec. 3, 2002
6489518 Process for reducing the salt content of fractions comprising high boilers obtained in the preparation of phenol from cumene, by extraction Dec. 3, 2002
6486365 Production and purification of phenol: hydroxyacetone removal by hydrotalcite Nov. 26, 2002
6441251 Production of phenol Aug. 27, 2002
6441252 Apparatus for producing phenol using reactive distillation Aug. 27, 2002
6433232 Process for producing hydroxyaromatic compound Aug. 13, 2002
6410804 Production of phenol using reactive distillation Jun. 25, 2002
6388144 Method for reducing methylbenzofuran levels in high purity phenol May. 14, 2002
6297406 Production of phenol Oct. 2, 2001
6201157 Method for production of phenol and acetone by decomposition of cumene hydroperoxide Mar. 13, 2001
6180834 Process for the extraction of the salts contained in the neutralized separated product obtained in the preparation of phenol by the oxidation of cumene Jan. 30, 2001
6169216 Production of phenol Jan. 2, 2001
6169215 Production of phenol Jan. 2, 2001
6066767 Method of purifying cumene hydroperoxide decomposition products from hydroxyacetone and from other carbonyls May. 23, 2000
6057483 High selective method of phenol and acetone production May. 2, 2000
6034282 Method of phenol tar desalting Mar. 7, 2000
6025530 Phenol tar cracking process Feb. 15, 2000
5847235 Method of phenol tar desalting Dec. 8, 1998
5811598 Process for the recovery of phenol from an aqueous stream containing NA.sub. SO.sub.4 Sep. 22, 1998
5672775 Method of separating phenol from highly concentrated phenol solution Sep. 30, 1997
5672777 Catalysts for production of phenol and its derivatives Sep. 30, 1997
5600026 Process for production of cresols Feb. 4, 1997
5538599 Phenol separation Jul. 23, 1996
5538599 Phenol separation Jul. 23, 1996
5512175 Assembly for removing hydrophilic contaminants, method of the same, and apparatus for producing phenol Apr. 30, 1996
5510543 Removal and neutralization of acid catalyst from products of cumene hydroperoxide cleavage Apr. 23, 1996

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