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.

Date of Patent:
Dec. 24, 1991

Filed:

Jun. 26, 1990
Applicant:
Inventors:

Peter W Austin, Bury, GB;

Peter M Quan, Rochdale, GB;

Peter A Tasker, Dobcross, GB;

Derek Thorp, Hopwood, GB;

Assignees:

Imperical Chemical Industries PLC, London, GB;

Nerco Inc., Portland, OR (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75743 ; 75722 ; 423D / ; 423131 ; 423112 ;
Abstract

A process for extracting metal values such as gallium and/or indium from aqueous solutions by contacting said solutions with a water immiscible organic solvent having dissolved therein a heterocyclic thione.


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Austin, Peter. (1991). Heterocyclic thione (U.S. Patent No. 5074911). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5074911

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