发明申请
US20100086987A1 SURFACE TREATED CALCIUM CARBONATE AND ITS USE IN WASTE WATER TREATMENT
有权
表面处理碳酸钙及其在废水处理中的应用
- 专利标题： SURFACE TREATED CALCIUM CARBONATE AND ITS USE IN WASTE WATER TREATMENT
- 专利标题（中）： 表面处理碳酸钙及其在废水处理中的应用
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申请号： US12449885申请日： 2008-03-19
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公开(公告)号： US20100086987A1公开(公告)日： 2010-04-08
- 发明人: Patrick A.C. Gane , Joachim Schölkopf , Daniel Gantenbein , Daniel E. Gerard
- 申请人： Patrick A.C. Gane , Joachim Schölkopf , Daniel Gantenbein , Daniel E. Gerard
- 优先权： EP07005856.5 20070321
- 国际申请： PCT/EP2008/053337 WO 20080319
- 主分类号： C02F1/28
- IPC分类号： C02F1/28 ; B01J20/04 ; C02F1/56 ; C02F1/62 ; C02F1/66 ; C09K3/00 ; C12N1/00
摘要：
The present invention relates to a process for the purification of water, wherein a surface-reacted natural calcium carbonate is brought into contact with the water to be purified, the surface-reacted natural calcium carbonate being the reaction product of a natural calcium carbonate with an acid and carbon dioxide, which is formed in situ by the acid treatment and/or supplied externally.
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