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. 16, 1988
Filed:
Sep. 29, 1986
Applicant:
Inventor:
Vikram P Mehrotra, Terre Haute, IN (US);
Assignee:
International Minerals & Chemical Corp., Terre Haute, IN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B03D / ;
U.S. Cl.
CPC ...
209166 ; 252 61 ;
Abstract
A new froth flotation collecting agent and an improved flotation process for beneficiating silica-containing ores, particularly phosphate ores, are provided. In the process, silica particles are selectively separated, by froth flotation, as a froth phase from mineral particles, particularly phosphate particles, remaining in an aqueous concentrate phase in the presence of a silica-activating ion and a mixed collecting agent containing an anionic collector and a cationic collector.