GB331880A - Improvements in the production of fats - Google Patents

Abstract

331,880. Hilditch, T. P. March 11, 1929. Esters.--Synthetic fats are praduced by esteri. fying a mixture of fatty acids containing about <1>/3 to <2>/3 of saturated fatty acids and the balance unsaturated acids, by heating with a deficiency of glycerol, and if desired under reduced pressure. A suitable mixture of fatty acids may be obtained by saponifying a vegetable fat or fats, and if necessary ruiding a proportion of animal fats or acids to adjust the content of saturated acids in the mixture to within the desired limits. In examples, a mixture containing specified proportions of palmitic, stearic, oleic, and linoleic acids yields on esterification a synthetic lard; a mixture containing palmitic and oleic acids (in which some of the oleic acid may be replaced by linoleic acid) gives on esterification a fat resembling natural lard; a fat resembling tallow is produced by esterifying a mixture of palmitic, stearic, and oleic acids, in which a part of the oleic acid may be replaced by linoleic acid; the fatty acids liberated from cacao butter are recombined with glycerol, to produce a product closely resembling mutton tallow. During the esterificafion an excess of about 10-20 per cent of fatty acid mixture is preferably employed, above that theoretically required in the reaction.