发明公开
- 专利标题： PROCESS FOR PRODUCTION OF AQUEOUS AMMONIUM TUNGSTATE SOLUTION
- 专利标题（中）： 方法产生氨水钨溶液
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申请号： EP10847014申请日： 2010-03-05
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公开(公告)号： EP2543639A4公开(公告)日： 2013-11-20
- 发明人: ITO HIDEAKI , ITAKURA TAKESHI , YAMAMOTO YOSHIHARU , SASAYA KAZUO , OKUNO TAKUYA , SATO FUMIATSU , YAMANAKA SYUNSUKE , IKEGAYA AKIHIKO
- 申请人： UNIV NAGOYA NAT UNIV CORP , ALMT CORP , SUMITOMO ELEC HARDMETAL CORP , SUMITOMO ELECTRIC INDUSTRIES
- 专利权人： UNIV NAGOYA NAT UNIV CORP,ALMT CORP,SUMITOMO ELEC HARDMETAL CORP,SUMITOMO ELECTRIC INDUSTRIES
- 当前专利权人： UNIV NAGOYA NAT UNIV CORP,ALMT CORP,SUMITOMO ELEC HARDMETAL CORP,SUMITOMO ELECTRIC INDUSTRIES
- 优先权： JP2010053659 2010-03-05
- 主分类号： C01G41/00
- IPC分类号： C01G41/00 ; G10L13/08 ; G10L15/06
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.
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