Invention Grant
- Patent Title: Sodium tungstate production method
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Application No.: US14775824Application Date: 2014-03-06
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Publication No.: US10011890B2Publication Date: 2018-07-03
- Inventor: Takeshi Itakura , Akihiko Ikegaya , Yoshiharu Yamamoto
- Applicant: A.L.M.T. Corp.
- Applicant Address: JP Tokyo
- Assignee: A.L.M.T. Corp.
- Current Assignee: A.L.M.T. Corp.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2013-052810 20130315
- International Application: PCT/JP2014/055808 WO 20140306
- International Announcement: WO2014/142003 WO 20140918
- Main IPC: C22B34/36
- IPC: C22B34/36 ; C01G41/00 ; C22B7/00
Abstract:
A method of producing sodium tungstate of this invention including allowing cemented carbide scrap containing tungsten to react with a molten salt containing sodium sulfate and having added thereto a metal oxide, to thereby obtain sodium tungstate.
Public/Granted literature
- US20160024615A1 SODIUM TUNGSTATE PRODUCTION METHOD Public/Granted day:2016-01-28
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