Glyceride oil treatment with oxide and bleaching earth

Abstract

The storage properties of edible oils are improved by first contacting the oil, in solution in a non-polar solvent, with a metal or metalloid oxide adsorbent in a column, and subsequently treating the oil with a bleaching earth after the solvent has been removed.
Inventors: Strauss; Hans Joerg (Hamburg, DT), Gupta; Achintya Kumar Sen (Schenefeld, DT), Rost; Johannes Erich (Hamburg, DT)
Assignee: Lever Brothers Company (New York, NY)
Appl. No.: 05/497,987
Filed: August 16, 1974

http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PT...RefSrch=yes&Query=PN%2F3955004

Oil bleaching method and composition for same

Abstract

The present invention contemplates a method for treating oils having undesirable color impurities and an oil bleaching composition suitable for use in this method. The method comprises contacting the oil with the oil bleaching composition for a time period sufficient to reduce the amount of color impurities of the oil. The oil bleaching composition includes a neutral bleaching clay and a chelating polycarboxylic acid. The spent bleaching composition resists spontaneous combustion.
Inventors: Brooks; David D. (Crystal Lake, IL), Brophy; Shirley A. (Ingleside, IL), Goss; George R. (Quincy, IL)
Assignee: Oil-Dri Corporation of America (Chicago, IL)
Appl. No.: 07/280,127
Filed: December 5, 1988

http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PT...RefSrch=yes&Query=PN%2F5004570

Process for bleaching naturally-occurring oils and fats

Abstract

A process for bleaching an oil or fat is disclosed wherein a polar bleaching agent is employed in the presence of a phase transfer catalyst.
Inventors: Jones; Keith (Wirral, GB2), McDonnell; Francis R. M. (South Wirral, GB2), Morgan; Stuart N. (Liverpool, GB2), Thornthwaite; David W. (Wirral, GB2)
Assignee: Lever Brothers Company (New York, NY)
Appl. No.: 06/200,250
Filed: October 24, 1980

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PT...&RS=TTL/bleaching+AND+TTL/oils

5,004,570 Full-Text Oil bleaching method and composition for same
Abstract

The present invention contemplates a method for treating oils having undesirable color impurities and an oil bleaching composition suitable for use in this method. The method comprises contacting the oil with the oil bleaching composition for a time period sufficient to reduce the amount of color impurities of the oil. The oil bleaching composition includes a neutral bleaching clay and a chelating polycarboxylic acid. The spent bleaching composition resists spontaneous combustion.
Inventors: Brooks; David D. (Crystal Lake, IL), Brophy; Shirley A. (Ingleside, IL), Goss; George R. (Quincy, IL)
Assignee: Oil-Dri Corporation of America (Chicago, IL)
Appl. No.: 07/280,127
Filed: December 5, 1988

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PT...l&RS=TTL/bleaching+AND+TTL/oil

2 4,325,883 Full-Text Process for bleaching naturally-occurring oils and fats

Abstract

A process for bleaching an oil or fat is disclosed wherein a polar bleaching agent is employed in the presence of a phase transfer catalyst.
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PT...&RS=TTL/bleaching+AND+TTL/oils

3,955,004 Full-Text Glyceride oil treatment with oxide and bleaching earth
Abstract

The storage properties of edible oils are improved by first contacting the oil, in solution in a non-polar solvent, with a metal or metalloid oxide adsorbent in a column, and subsequently treating the oil with a bleaching earth after the solvent has been removed.
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PT...l&RS=TTL/bleaching+AND+TTL/oil

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