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:
Dec. 01, 1981
Filed:
Nov. 27, 1978
Applicant:
Inventors:
John S Rendall, Stanford-le-Hope, GB;
Maurice J Cahalan, Pangbourne, GB;
Assignee:
RTL Contactor Holding S.A., Zug, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ; C01B / ;
U.S. Cl.
CPC ...
423-6 ; 423-7 ; 423 10 ; 423319 ; 4233 / ;
Abstract
The invention describes the extraction of values, especially metal values such as copper and uranium, from minerals by passing the mineral in admixture with a leaching agent for the values through a contactor and extracting the values with an extractant stream immiscible with the mixture and of lesser density so that the values are captured by the extractant and can be withdrawn with the extractant and, if desired, isolated by any suitable means.