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. 05, 1977
Filed:
Jul. 10, 1975
Societe Metallurgique Le Nickel SLN, Paris, FR;
Abstract
A method of extracting constituent metal values from sea nodules containing copper, cobalt, iron and nickel is disclosed. The method involves melting the nodules under reducing conditions to obtain a concentrate containing said metals and reacting the metal concentrate in an aqueous medium with gaseous chlorine to obtain an aqueous solution containing the chlorides of said metal. Copper is thereafter precipitated from the aqueous solution and subsequently electrorefined, while the iron and cobalt are extracted from the aqueous solution by means of organic extractants and then re-extracted from the organic phases by aqueous phases.
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