PROCESS FOR PRODUCING HIGHLY CONCENTRATED PASTES OF ALPHA-SULFOFATLY ACID ALKYL ESTER ALKALI METAL SALTS

PCT No. PCT/EP91/00939 Sec. 371 Date Nov. 24, 1992 Sec. 102(e) Date Nov. 24, 1992 PCT Filed May 21, 1991 PCT Pub. No. WO91/18870 PCT Pub. Date Dec. 12, 1991.In the production of highly concentrated pastes of alpha -sulfofatty acid alkyl ester alkali metal salts by reaction of fatty acid alkyl esters...

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Bibliographic Details
Main Authors GUNTER PANTHEL, ERICH DORRA, DIETMAR COLIGNON
Format Patent
LanguageEnglish
Published 11.12.1991
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ADHESIVES
ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES
CANDLES
CHEMISTRY
DETERGENT COMPOSITIONS
DETERGENTS
DYES
FATTY ACIDS THEREFROM
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC CHEMISTRY
PAINTS
POLISHES
RECOVERY OF GLYCEROL
RESIN SOAPS
SOAP OR SOAP-MAKING
USE OF SINGLE SUBSTANCES AS DETERGENTS
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Summary:PCT No. PCT/EP91/00939 Sec. 371 Date Nov. 24, 1992 Sec. 102(e) Date Nov. 24, 1992 PCT Filed May 21, 1991 PCT Pub. No. WO91/18870 PCT Pub. Date Dec. 12, 1991.In the production of highly concentrated pastes of alpha -sulfofatty acid alkyl ester alkali metal salts by reaction of fatty acid alkyl esters with gaseous SO3, subsequent after-reaction in liquid phase and neutralization with aqueous alkali hydroxide solutions, the sulfonation product and aqueous alkali metal hydroxide solution are introduced during neutralization into an aqueous phase initially containing at least 55% by weight washing-active substance at a pH value in the range from 2 to 8 and washing-active substance contents of 60 to 70% by weight are established.
Bibliography:Application Number: CN19911003562