发明名称 |
Surface treated calcium carbonate and its use in waste water treatment |
摘要 |
<p>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.</p> |
申请公布号 |
EP1982759(B1) |
申请公布日期 |
2011.09.07 |
申请号 |
EP20070005856 |
申请日期 |
2007.03.21 |
申请人 |
OMYA DEVELOPMENT AG |
发明人 |
GANE, PATRICK A. C.;SCHOELKOPF, JOACHIM;GANTENBEIN, DANIEL;GERARD, DANIEL E. |
分类号 |
B01J20/04;C02F1/28;C02F1/56;C02F103/28;C02F103/32 |
主分类号 |
B01J20/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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