Patent ID: 6206947
Filing Date: 2001-03-27
Classification: A01K

Abstract:
A process for making an animal litter composition comprising:preparing a solution comprising 500 mL of 3 M sulfuric acid, from 100 to 500 mL of a aluminum sulfate solution made by dissolving 285 grams of anhydrous aluminum sulfate in 1 liter of water, from 40 to 160 mL of a stock urea solution containing 0.5 grams urea/mL, and from 90 to 610 mL of water to dilute;adding about 250 mL of said solution to each kilogram of powdered gypsum and mixing to form granules; andheating said granules to a temperature sufficient to melt said urea and to convert the gypsum to calcium sulfate hemihydrite or calcium sulfate anhydrite.