发明授权
- 专利标题： Method for producing ammonium tungstate aqueous solution
- 专利标题（中）： 钨酸铵水溶液的制备方法
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申请号： US13582644申请日： 2010-03-05
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公开(公告)号： US08974674B2公开(公告)日： 2015-03-10
- 发明人: Hideaki Ito , Takeshi Itakura , Yoshiharu Yamamoto , Kazuo Sasaya , Takuya Okuno , Fumiatsu Sato , Syunsuke Yamanaka , Akihiko Ikegaya
- 申请人： Hideaki Ito , Takeshi Itakura , Yoshiharu Yamamoto , Kazuo Sasaya , Takuya Okuno , Fumiatsu Sato , Syunsuke Yamanaka , Akihiko Ikegaya
- 申请人地址： JP Nagoya-shi JP Tokyo JP Itami-shi JP Osaki-shi
- 专利权人： National University Corporation Nagoya University,A.L.M.T. Corp.,Sumitomo Electric Hardmetal Corp.,Sumitomo Electric Industries, Ltd.
- 当前专利权人： National University Corporation Nagoya University,A.L.M.T. Corp.,Sumitomo Electric Hardmetal Corp.,Sumitomo Electric Industries, Ltd.
- 当前专利权人地址： JP Nagoya-shi JP Tokyo JP Itami-shi JP Osaki-shi
- 代理机构： Venable LLP
- 代理商 Michael A. Sartori; Annette K. Kwok
- 国际申请： PCT/JP2010/053659 WO 20100305
- 国际公布： WO2011/108112 WO 20110909
- 主分类号： C01G41/00
- IPC分类号： C01G41/00 ; B01J49/00 ; C02F1/42
摘要：
A method for producing an ammonium tungstate aqueous solution includes the steps of: adding sulfuric acid to a solution containing tungstate ions; bringing the solution having the sulfuric acid added therein, into contact with an anion exchange resin; and bringing the anion exchange resin into contact with an aqueous solution containing ammonium ions.
公开/授权文献
- US20120328506A1 METHOD FOR PRODUCING AMMONIUM TUNGSTATE AQUEOUS SOLUTION 公开/授权日：2012-12-27
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