发明名称 |
GROUND CALCINED ALUMINA FOR INPUT IN A PRECURSOR COMPOSITION FOR REFRACTORY MATERIAL, AND METHOD FOR OBTAINING SAME |
摘要 |
<p>The invention concerns an additive-containing ground calcined alumina used as constituent of a refractory material precursor characterized in that it comprises an organofunctional silane, the organic function being typically an epoxy function, an alkyl function, an alcohol function or a diol function. Preferably said organofunctional silane is an oxyranyl-alkyl-silane, of chemical formula C<SUB>9</SUB>H<SUB>20</SUB>O<SUB>5</SUB>Si. Said additive-containing alumina can be obtained by adding said organofunctional silane during grinding to take advantage of its anti-caking properties, the intimate and homogeneous mixture being obtained as a result of grinding. It may also result from a post-grinding mixing.</p> |
申请公布号 |
EP1436230(A1) |
申请公布日期 |
2004.07.14 |
申请号 |
EP20020785552 |
申请日期 |
2002.10.17 |
申请人 |
ALUMINIUM PECHINEY |
发明人 |
MARTIN, NICOLAS;BARTHELEMY, CHRISTIAN |
分类号 |
C01F7/02;C04B35/628;C01F7/44;C04B35/101;C04B35/63;C04B35/632;C04B35/634;C09C1/40;(IPC1-7):C01F7/02 |
主分类号 |
C01F7/02 |
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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