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:
May. 19, 1987
Filed:
Mar. 27, 1984
Applicant:
Inventors:
Jean-Claude Gautier, Ablon sur Seine, FR;
Serge Lecolier, Janville sur Juine, FR;
Claude Soriaux, Mennecy, FR;
Sammy Chevalier, Paris, FR;
Assignee:
Societe Nationale des Poudres et Explosifs, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75117 ; 7510 / ; 423 24 ; 423D / ; 548364 ; 548367 ;
Abstract
Liquid/liquid extraction process for copper from an aqueous sulphuric acid solution acting on the concentrated mineral or semi-finished product to be treated. The extraction is carried out in an organic solvent containing in solution an extraction agent derived from 2-phenyl-4-acyl-(3H)-pyrazol-3-ones, with the phenyl group subsitituted or unsubstituted. Application to the upgrading of minerals.