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Title:
PROCESSING METHOD FOR LITHIUM ION BATTERY SCRAP
Document Type and Number:
WIPO Patent Application WO/2017/159745
Kind Code:
A1
Abstract:
This processing method for lithium ion battery scrap includes: a leaching step for leaching lithium ion battery scrap, performing solid-liquid separation on the leachate obtained as a result of the leaching, and obtaining a first separated liquid; an iron removal step for adding an oxidizing agent to the first separated liquid to adjust the pH thereof to 3.0-4.0 and then performing solid-liquid separation and removing the iron in the first separated liquid to obtain a second separated liquid; and an aluminum removal step for neutralizing the second separated liquid to a pH of 4.0-6.0 and then performing solid-liquid separation and removing the aluminum in the second separated liquid to obtain a third separated liquid.

Inventors:
ITO,Junichi (JX Nippon Mining & Metals Corporation1 Wakaizumi-cho,Tsuruga-sh, Fukui 27, 〒9140027, JP)
ARAKAWA,Junichi (JX Nippon Mining & Metals Corporation1 Wakaizumi-cho,Tsuruga-sh, Fukui 27, 〒9140027, JP)
YOKOTA,Takuya (JX Nippon Mining & Metals Corporation1-2,Shirogane-cho 1-chome,Hitachi-sh, Ibaraki 56, 〒3170056, JP)
HIGUCHI,Naoki (JX Nippon Mining & Metals Corporation1-2,Shirogane-cho 1-chome,Hitachi-sh, Ibaraki 56, 〒3170056, JP)
Application Number:
JP2017/010482
Publication Date:
September 21, 2017
Filing Date:
March 15, 2017
Export Citation:
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Assignee:
JX NIPPON MINING & METALS CORPORATION (1-2Otemachi 1-chome, Chiyoda-ku Tokyo, 64, 〒1008164, JP)
International Classes:
C22B7/00; B09B3/00; C22B3/30; C22B3/38; C22B3/44; C22B23/00; C22B26/12; H01M10/54
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (Shimbashi i-mark Bldg, 6-2 Shimbashi 2-Chome Minato-k, Tokyo 04, 〒1050004, JP)
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