Particulate borate-soap compositions
AssigneeUnited States Borax & Chemical Corporation
InventorsRichard C. Speak, Donald J. Ferm
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Abstract
Particulate borate-soap compositions containing sodium bicarbonate are produced by reaction of a fatty acid with a mixture of hydrated sodium tetraborate and alkali metal carbonate in a fatty acid: carbonate mole ratio of about 1:1 to 1:2. The product comprises particles of borate coated with soap and sodium bicarbonate in which the soap represents about 5 to 35% by weight of the composition.
Claims20
The method of producing a particulate borate soap composition comprising heating C.sub.8 -C.sub.18 fatty acid at a temperature of from about 40.degree. to 100.degree. C. at which temperature said fatty acid is a liquid and intimately mixing said liquid fatty acid with a mixture of finely divided alkali metal carbonate and hydrated sodium tetraborate to form the alkali metal salt of said fatty acid and thereby produce a particulate hydrated sodium tetraborate-soap-alkali metal bicarbonate composition containing about 25 to 50% as anhydrous sodium tetraborate, wherein the mole ratio of said fatty acid to alkali metal carbonate is in the range of from 1:1 to about 1:2, said finely divided alkali metal carbonate is substantially of a particle size smaller than 100 mesh, and the soap content of the resultant particulate product is in the range of about 5 to 35% by weight.
Particulate borate soap consisting essentially of hydrated sodium tetraborate particles coated with a mixture of soap and alkali metal bicarbonate, said borate soap containing about 5 to 35% by weight soap and about 25 to 50% anhydrous sodium tetraborate.
Dependencies are inferred from the claim text.