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:
Apr. 30, 1985
Filed:
Mar. 01, 1983
Applicant:
Inventors:
Piotr Swiatkowski, Huddinge, SE;
Thomas Wiklund, Nacka, SE;
Assignee:
KenoGard AB, Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03D / ;
U.S. Cl.
CPC ...
209166 ; 252 61 ;
Abstract
A flotation collector composition comprises a combination of fatty acids, amidocarboxylic acids or amidosulfonic acids and partial esters of phosphoric acid and alkoxylated alcohols. The collector composition is used for upgrading nonsulfide minerals containing alkaline earth metals by froth flotation. Minerals such as apatite, calcite, scheelite, fluorspar, magnesite and baryte can be separated from the gangues using the collector composition.