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:
Jan. 06, 1976
Filed:
May. 21, 1973
Applicant:
Inventors:
William S Kane, Wicomic, VA (US);
Paul H Cardwell, Zanoni, VA (US);
Assignee:
Deepsea Ventures, Inc., Gloucester Point, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25c / ;
U.S. Cl.
CPC ...
2041 / ; 204107 ; 204108 ; 204112 ; 204113 ; 75117 ; 75119 ; 75121 ; 7510 / ; 7510 / ; 423 24 ; 423 49 ; 423139 ; 423140 ;
Abstract
This invention provides a process for selectively removing metal values from ocean floor nodule ore by a two-stage procedure. In the first stage, the ore is leached with an aqueous solution of sulfuric acid or a hydrogen halide to preferentially remove nickel and copper. In the second stage, the ore is leached with a reducing agent to preferentially remove cobalt and manganese. The two leach solutions can then be further treated to separate the individual metal values, e.g., by liquid ion exchange procedures.