Sodium aluminum sulfate for use in animal litters
AssigneeUsalco, LLC
InventorsJames M. Dulko, Bruce Wonder
Life of this patent
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Abstract
A method for producing a mixed salt of sodium and aluminum includes providing a solution comprising water, sodium chloride and sulfuric acid, heating the solution to a temperature between 180° F. and 300° F. so that the sodium chloride reacts with the sulfuric acid to form sodium bisulfate and hydrochloric acid and then continue heating until the solution is essentially free of the hydrochloric acid, adding aluminum or an aluminum compound to the solution to form the mixed salt comprising a sodium aluminum sulfate compound and solidifying the mixed salt to form the sodium aluminum sulfate compound.
Claims18
A method for producing a mixed salt of sodium and aluminum, the method comprising:
- providing a solution comprising water, sodium chloride and sulfuric acid;
- heating the solution to a temperature between 180° F. and 300° F. (82° C. and 149° C.) so that the sodium chloride reacts with the sulfuric acid to form sodium bisulfate and hydrochloric acid and continue heating until the solution is essentially free of the hydrochloric acid;
- adding aluminum or an aluminum compound to the solution to form the mixed salt comprising a sodium aluminum sulfate compound;
- and
- solidifying the mixed salt to form the sodium aluminum sulfate compound.
Dependencies are inferred from the claim text.