Invention Grant
- Patent Title: Method of recovering valuable metal from scrap conductive oxide
- Patent Title (中): 从废物导电氧化物中回收贵重金属的方法
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Application No.: US12524947Application Date: 2008-02-08
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Publication No.: US08685225B2Publication Date: 2014-04-01
- Inventor: Yuichiro Shindo , Kouichi Takemoto
- Applicant: Yuichiro Shindo , Kouichi Takemoto
- Applicant Address: JP Tokyo
- Assignee: JX Nippon Mining & Metals Corporation
- Current Assignee: JX Nippon Mining & Metals Corporation
- Current Assignee Address: JP Tokyo
- Agency: Howson & Howson LLP
- Priority: JP2007-036491 20070216; JPPCT/JP2007/062900 20070627
- International Application: PCT/JP2008/052107 WO 20080208
- International Announcement: WO2008/099773 WO 20080821
- Main IPC: C25F1/04
- IPC: C25F1/04

Abstract:
Proposed is a method of recovering valuable metal from scrap containing conductive oxide including the steps of using scrap containing conductive oxide and performing electrolysis while periodically inverting the polarity, and recovering the scrap as hydroxide. With the foregoing method of recovering valuable metal from scrap containing conductive oxide, oxide system scrap is conductive oxide and a substance that can be reduced to metal or suboxide with hydrogen. This method enables to efficiently recover valuable metal from sputtering target scrap containing conductive oxide or scrap such as mill ends of conductive oxide that arise during the production of such a sputtering target.
Public/Granted literature
- US20100101963A1 Method of Recovering Valuable Metal from Scrap Conductive Oxide Public/Granted day:2010-04-29
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