发明名称 |
PROCESS FOR PREPARING AQUEOUS COLLOIDAL SILICA SOLS OF HIGH PURITY FROM ALKALI METAL SILICATE SOLUTIONS |
摘要 |
The present invention relates to a process for preparing aqueous colloidal silica sols of high purity from silicate solutions, to aqueous colloidal silica sols with a specific profile of impurities, and to the use thereof. The invention further encompasses high-purity aqueous silica obtained as an intermediate in the course of the purification process, high-purity silicon dioxide obtainable by dewatering, and the use thereof. |
申请公布号 |
EP2678399(B1) |
申请公布日期 |
2016.07.13 |
申请号 |
EP20120705088 |
申请日期 |
2012.02.09 |
申请人 |
EVONIK DEGUSSA GMBH |
发明人 |
FUHRMANN, CLAUDIA;OEHM, DIETER;PANZ, CHRISTIAN;PAULAT, FLORIAN;SCHÜTTE, RÜDIGER;RAULEDER, HARTWIG;MARKOWZ, GEORG;LANG, JÜRGEN ERWIN;FRINGS, BODO |
分类号 |
C09K3/14;C01B33/12;C01B33/143;C01B33/148;C01B33/193;C09G1/02 |
主分类号 |
C09K3/14 |
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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