发明授权
US4820501A Method for removing organic materials dissolved in purified phosphoric
acid
失效
去除溶解在纯化磷酸中的有机物质的方法
- 专利标题: Method for removing organic materials dissolved in purified phosphoric acid
- 专利标题(中): 去除溶解在纯化磷酸中的有机物质的方法
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申请号: US162123申请日: 1988-02-29
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公开(公告)号: US4820501A公开(公告)日: 1989-04-11
- 发明人: Masaki Nakatani
- 申请人: Masaki Nakatani
- 申请人地址: JPX Shin-nanyo
- 专利权人: Tosoh Corporation
- 当前专利权人: Tosoh Corporation
- 当前专利权人地址: JPX Shin-nanyo
- 优先权: JPX62-52142 19870309
- 主分类号: C01B25/237
- IPC分类号: C01B25/237 ; C01B25/235 ; C01B25/46 ; C01B25/16
摘要:
A method for removing organic materials dissolved in purified phosphoric acid by decomposing it with hydrogen peroxide, characterized in that after the treatment with hydrogen peroxide, the purified phosphoric acid is contacted with reducing phosphorus compounds.
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