发明名称 |
NOVEL METHOD FOR PREPARING PRECIPITATED SILICAS, NOVEL PRECIPITATED SILICAS AND THEIR USES, IN PARTICULAR FOR STRENGTHENING POLYMERS |
摘要 |
The invention relates to a novel process for the preparation of a precipitated silica, in which: a silicate is reacted with at least one acidifying agent, so as to obtain a suspension of precipitated silica, said suspension of precipitated silica is filtered, so as to obtain a filtration cake, said filtration cake is subjected to a liquefaction operation comprising the addition of an aluminum compound, after the liquefaction operation, a drying stage is carried out, characterized in that methylglutaric acid is added to the filtration cake, during or after the liquefaction operation. It also relates to novel precipitated silicas and to their uses. |
申请公布号 |
EP2890638(A1) |
申请公布日期 |
2015.07.08 |
申请号 |
EP20130756466 |
申请日期 |
2013.09.02 |
申请人 |
RHODIA OPERATIONS |
发明人 |
BOIVIN, CÉDRIC;GUY, LAURENT;PERIN, ERIC;LAMIRI, KILANI |
分类号 |
C01B33/193;C08K3/36;C09C1/28 |
主分类号 |
C01B33/193 |
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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