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:
Jan. 26, 1993
Filed:
Mar. 29, 1991
Applicant:
Inventors:
John C Miller, Hawthorn Woods, IL (US);
William E Welch, Chicago Heights, IL (US);
Assignee:
Exxon Chemical Patents, Inc., Linden, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B03D / ; B03D / ;
U.S. Cl.
CPC ...
252 61 ; 562605 ; 252321 ; 209166 ; 209167 ;
Abstract
Flotation aids, for use in ore flotation and beneficiation processes, comprising polyamines in the presence of fluorosubstituted organic compounds, either mixed therewith or at least partially-neutralized thereby, such that the resulting compositions separate silicate impurities and the like while also modifying and/or suppressing the froth generated. The synergistic nature of such compositions, certain embodiments of which are structurally novel, provide a cost-effective route to higher yields and increased production rates.