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:
Sep. 24, 1991
Filed:
Dec. 15, 1989
Applicant:
Inventor:
William H Andrews, Waverley, AU;
Assignee:
Wimmera Industrial Minerals Pty. Ltd., Victoria, AU;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B03D / ;
U.S. Cl.
CPC ...
209166 ; 209167 ; 423-3 ;
Abstract
The specification discloses a process for substantially reducing the radioactivity of heavy mineral concentrates or mineral mixtures. The process comprises the removal of radioactive minerals present in the heavy mineral concentrate or mixture by a selective flotation procedure. The process yields a single flotation fraction containing the radioactive minerals.