Preparation and use of high quality esterquats from rice bran fatty acids
AssigneeClariant International Ltd.
InventorsSushant Dattaram Wadekar, Prerak Rajendrakumar Contractor
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Abstract
Esterquats find major applications as fabric softeners. After Tallow fatty acids and Palm oil fatty acids, fatty acids from sustainable sources like Rice bran fatty acids (RBFA) are desired. RBFA is formed as a by-product during refining of Rice bran oil and hence it is contained in the non edible portion of the oil. The production of high quality esterquats from this by-product is challenging, but the invention describes a process to produce high quality esterquats having low odour and a low acid value. This enhances easy formulation of various products and better customer acceptance. Liquid esterquats produced from RBFA enable e.g. cold processing for fabric softener formulations.
Claims17
A process for production of an esterquat composition, wherein the process comprises the steps of:
- (i) esterification of a fatty acid or a mixture of fatty acids with an alkanolamine to form an ester amine or a mixture of ester amines;
- and
- (ii) quaternization of the amino group of the resultant ester amine or the amino groups of the mixture of ester amines with a quaternizing agent,
- wherein the fatty acid or mixture of fatty acids is a rice bran fatty acid or a mixture of rice bran fatty acids, and are from non-edible sources generated during refinement of a rice bran oil, and
- wherein the fatty acid or mixture of fatty acids is directly esterified, is subjected to a chemical processing before being esterified, is changed before being esterified by using one or more separation techniques, or a combination thereof.
Dependencies are inferred from the claim text.