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US 4,376,716 AGranted
Preparation of stable sodium carbonate dispersions
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorRobert Kaiser
Life of this patent
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Abstract
A method for preparing a stable sodium carbonate micro dispersion in hexane by subjecting a starting material composed of a colloidal sodium carbonate dispersion in oil to the steps of flocculation, redispersion, centrifugation and vacuum distillation.
Claims1
A method of preparing a stable microdispersion of sodium carbonate particles in hexane which comprises the steps of:
- (A) forming a mixture of (1) hexane and (2) a phosphoro-sulfurized polybutene stabilized, non-volatile, sodium carbonate oil dispersion;
- (B) adding acetone to said mixture to form a flocculated colloidal precipitate;
- (C) separating said precipitate from said mixture by decanting the said acetone;
- (D) mixing said separated precipitate with hexane to form a colloidal suspension;
- and
- (E) concentrating the said colloidal suspension by centrifugation and distilllation to effect the formation of said stable microdispersion of sodium carbonate in hexane.
3 more elements
Dependencies are inferred from the claim text.