发明公开
EP0015809A2 Improved process and system for purifying brown phosphoric acid
失效
Verbahs Verfahren und System zur Reinigung braunerPhosphorsäure。
- 专利标题： Improved process and system for purifying brown phosphoric acid
- 专利标题（中）： Verbahs Verfahren und System zur Reinigung braunerPhosphorsäure。
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申请号： EP80400241.8申请日： 1980-02-20
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公开(公告)号： EP0015809A2公开(公告)日： 1980-09-17
- 发明人: McConomy, Thomas A. , Wells, Bruce D.
- 申请人： CALGON CORPORATION
- 申请人地址： Route 60-Campbell's Run Road Robinson Township Pennsylvania 15205 US
- 专利权人： CALGON CORPORATION
- 当前专利权人： CALGON CORPORATION
- 当前专利权人地址： Route 60-Campbell's Run Road Robinson Township Pennsylvania 15205 US
- 代理机构： Corre, Jacques Denis Paul
- 优先权： US13495 19790221
- 主分类号： C01B25/235
- IPC分类号： C01B25/235
摘要：
A system and process for decolorizing and purifying brown phosphoric acid using an activated carbon characterized by having a net pore volume of at least 0.40 cc./g. for those pores with diameters from 35 to 1000 A and wherein phosphonic acid is filtered through a bed of activated carbon contained in an housing.
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