Henkel Corporation

Cognis Deutschland Gmbh & Co. Kg

Cognis Corporation

C William Blewett

A Fred Elsasser

Ansgar Behler

Alfred Westfechtel

Norbert Huebner

Lothar Friesenhagen

Setsuo Sato

Norbert Klein

Jeffrey A Barnhorst

Charles M White

Gerrit Pelzer

A Frederick Elsasser

Thomas B Downing

Steven A Kennedy

Carlos Alberto De Moura

Michael Sublett

Methods of recovering free fatty acids having a low ester content from alkanol-containing solutions and oil mixtures containing tocopherols are disclosed which involve atmospheric or vacuum stripping at low temperatures. The recovered fatty acids have a high acid value, and have high commercial value in the production of high quality (high acid value) products, e.g., dimerized fatty acids, useful in polyamide resins.

Method of recovering free fatty acids having low ester content and high acid value

A process for making branched, substantially unsaturated fatty alcohols involving: (a) providing a C fatty acid; (b) dimerizing the C fatty acid to form a monomer fraction containing branched, substantially unsaturated fatty acids; (c) removing the monomer fraction; (d) esterifying the branched, substantially unsaturated fatty acids contained in the monomer fraction into branched, substantially unsaturated fatty acid methyl esters; and (e) hydrogenating the branched, substantially unsaturated fatty acid methyl esters with their double bonds intact, to form the branched, substantially unsaturated fatty alcohols.

Process for making branched, substantially unsaturated fatty alcohols

Process for the preparation of dimeric fatty acid C1-4 alkyl esters

Sulfur and soap contaminants are removed from carboxylic acid esters by a process comprising the steps of: (1) contacting a carboxylic acid ester with an aqueous base at a temperature of from about 225&deg; F. to about 280&deg; F. while removing water to form a dry, crude ester; (2) contacting the dry, crude ester with an absorbent selected from the group consisting of silica gel, hydro-silica gel and mixtures thereof; (3) separating the absorbent from the ester.

Process for making carboxylic acid esters

Alkoxylated alcohols containing no insoluble matter which would prevent the spray application of such materials are obtained by reacting an alcohol and epoxide in the presence of a catalytic amount of a calcined hydrotalcite catalyst to form a crude alkoxylated product. The crude product is then passed through silica gel to remove insoluble by-products.

Method of alkoxylating alcohols

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Lakeside Park, KY, United States of America

C William Blewett