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. 07, 1987
Filed:
Jun. 05, 1985
Applicant:
Inventors:
El aid Jdid, Vandoeuvre-les-Nancy, FR;
Pierre Blazy, Nancy, FR;
Jacques Bessiere, Gondreville, FR;
Jean C Tracez, Sceaux, FR;
Philippe Haicour, Paris, FR;
Assignee:
Ceca S.A., Villacoublay, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423 11 ; 423-8 ; 423-9 ; 423 10 ; 4233 / ;
Abstract
The invention concerns the recovery of heavy metals from concentrated solutions. The process comprises complexing the metals with an organophosphorous complexing agent and recovering the metallic complex by sedimentation, filtration, flotation and the like. The process can be used to recover uranium and rare earths from phosphoric acid solutions.