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:
Feb. 27, 1990
Filed:
Dec. 09, 1987
Applicant:
Inventor:
Robert E Snow, Lakeland, FL (US);
Assignee:
IMC Fertilizer, Inc., Northbrook, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B03D / ;
U.S. Cl.
CPC ...
209166 ; 209167 ;
Abstract
This invention is directed to an improved froth flotation separation for beneficiating phosphate containing ores wherein an ore is preliminarily conditioned with an anionic agent and then subjected to froth flotation separation to concentrate the phosphate containing fraction. The improvement comprises the addition of sodium silicate near the end of the conditioning step before the beginning of the froth flotation.