Method for separating copper from nickel and cobalt

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United States of America Patent

PATENT NO 12000018
APP PUB NO 20200216327A1
SERIAL NO

16648826

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Abstract

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Provided is a method for separating copper from nickel and cobalt with which it is possible to selectively and efficiently separate copper, as well as nickel and cobalt, from an alloy including copper, nickel, and cobalt such as an alloy having high corrosion resistance that includes copper, nickel, and cobalt obtained by dry treatment of waste lithium ion cells. An alloy including copper, nickel, and cobalt is brought into contact with sulfuric acid in the joint presence of a sulfurizing agent, and a solid containing copper and a leachate containing nickel and cobalt are obtained.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO METAL MINING CO LTD11-3 SHIMBASHI 5-CHOME MINATO-KU TOKYO 1058716 ?1058716

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asano, Satoshi Niihama, JP 92 425
Higaki, Tatsuya Niihama, JP 28 54
Kobayashi, Hiroshi Niihama, JP 902 9719
Takenouchi, Hiroshi Niihama, JP 23 222

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