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:
Nov. 21, 2000
Filed:
Oct. 04, 1999
Applicant:
Inventor:
Craig V Hughes, Valrico, FL (US);
Assignee:
Custom Chemicals Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
B03D / ; B03D / ;
U.S. Cl.
CPC ...
209166 ; 252 61 ;
Abstract
An improved phosphate ore beneficiation process is disclosed which comprises the employment of a novel combination of surfactants which, when combined with fatty acid collectors, enhances recovery of phosphate minerals in anionic flotation, even when used in plant water. The disclosed surfactants include petroleum sulfonates and ethoxylated alcohol ether sulfates.