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:
Jun. 23, 1981
Filed:
Jun. 25, 1979
Applicant:
Inventors:
Etienne Larribau, Lons, FR;
Pierre Tozzolino, Pau, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03D / ;
U.S. Cl.
CPC ...
209166 ; 252 61 ;
Abstract
Process using collectors for the flotation of minerals which allow the separation or enrichment of certain minerals, even at pH values around 7. These collectors are organic sulphides of the type R--S--R', in which the two groups R and R' are different and at least one of them preferably carries a substituent including oxygen or sulphur. The collectors are desirably used in a proportion of 10-100 ppm in relation to the weight of the mineral subject to flotation.