Process for lowering the bulk density of alkali making built synthetic detergent compositions
AssigneeColgate-Palmolive Company
InventorsFrank R. Smith, Jr., Edward J. Kenney, Walter A. DiSalvo
Life of this patent
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Abstract
Spray dried beads, having a low bulk density and high in alkali metal carbonate content and useful for post-treatment with additional amounts of nonionic detergent to produce a heavy duty detergent compositon of a bulk density in the range of 0.2 to 0.35 gram per milliliter, are made by admixing a small percentage of alkali metal soap of higher fatty acid with a 40-75% solids content aqueous crutcher mix comprising the alkali metal carbonate and up to about 2% by weight nonionic detergent heating the crutcher mix to 170.degree.-190.degree. F. and spray drying the mixture.
Claims11
A method of spray drying alkali metal carbonate beads useful to be post-treated with a polyethoxylated nonionic organic detergent to produce a heavy duty detergent composition, the bulk density of said bead being in the range of about 0.2 to 0.35 gram per milliliter comprising admixing with a 40-75% solids content aqueous crutcher mix containing said alkali metal carbonate from about 0.75 to 4% of an alkali metal soap of a higher fatty acid and up to about 2% by weight nonionic detergent, heating and spray drying the resulting mixture, the carbonate content being approximately 20-75% by weight, and thereafter post-treating said mix with additional amounts of said nonionic detergent such that the final bead contains about 5-15% of said nonionic.
Dependencies are inferred from the claim text.