A separation removing method of aluminum, and a recovery method of a valuable metal from a lithium ion battery

Title:

A separation removing method of aluminum, and a recovery method of a valuable metal from a lithium ion battery

Document Type and Number:

Japanese Patent JP5958316

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide, on an occasion for recovering, by using a sulfuric acid solution, valuable metals from defective products of anode materials produced during manufacturing processes or anode materials, etc. retrieved from used lithium ion batteries, for example, a method capable of effectively and efficiently separating and removing aluminum eluted into the sulfuric acid solution while inhibiting recovery losses of concomitantly exuding valuable metals.SOLUTION: After an anode material has been immersed within a sulfuric acid solution, the pH of the sulfuric acid solution is adjusted within a range of 3.5-6.5 by adding thereto a bicarbonate or carbonate, and aluminum eluted into the sulfuric acid solution is separated and filtered as aluminum hydroxide.

Inventors:

Yukie Kawakami
Hitoshi Ishida
Satoshi Asano

Application Number:

JP2012268269A

Publication Date:

July 27, 2016

Filing Date:

December 07, 2012

Export Citation:

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