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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.:

US 4251498 B1

PDFFull Text
Date of Patent:
Feb. 17, 1981

Filed:

Jan. 02, 1979

Preparation of granular sodium tripolyphosphate products from screen

Applicant:
Inventors:

Paul L Hensler, Lawrence, KS (US);

Delmar F Church, Lawrence, KS (US);

Robert W Beger, Mount Zion, IL (US);

Assignee:

FMC Corporation, Philadelphia, PA (US);

Attorneys:

Miles; Christine M.

Ianno; F.

Primary Examiner:

O R Vertiz

Assistant Examiner:

Gregory A Heller

Int. Cl.
CPC ...
C01B / ; C01B / ;
U.S. Cl.
CPC ...
423315 ; 423305 ;
Abstract

Screen undersize sodium tripolyphosphate (STPP) particles are compacted, milled and moisturized by adding a sufficient amount of water thereon to produce a material containing on the average between about 15% and about 35% by weight moisture. The moisturized material is calcined to a temperature within the range of from about 300.degree. to about 600.degree. C., to produce a granular STPP product having a low friability, high absorptivity, and a bulk density within the range of from about 0.65 to about 0.87 g/cc.

Find Patent Forward Citations

Hensler, Paul. (1981). Preparation of granular sodium tripolyphosphate products from screen (U.S. Patent No. 4251498). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4251498

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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