The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 1992
Filed:
Dec. 25, 1989
Cecil P Harrison, Florence, AL (US);
Cullen G Tittle, Tuscumbia, AL (US);
Tennessee Valley Authority, Muscle Shoals, AL (US);
Abstract
A process for granulating finely divided particulate sulfate or chloride salts of potassium to produce therefrom agricultural products having exceptionally satisfactory physical and chemical properties in regard to bulk blending with other fertilizer blend materials and also in regard to storage and handling properties. The instant methods involve introducing fine-sized, particulate feedstock together with recycle material into a conventional granulator and granulating the solids with use of a water solution comprised of the potassium salt to be granulated and portions of lignosulfonate, which solution has been found to bind the solids material together in a manner and form highly desirable. Drying of the resulting granulation material is required. Nominal grades of the sulfate and chloride granular products are about 47 and 57 percent by weight K.sub.2 O equivalent, respectively.