发明名称 |
HIGH PH DISPERSIBLE NONO-ALUMINAS |
摘要 |
<p>A process for producing nano sized boehmite aluminas which are stable at alkaline pH values wherein an aqueous medium of a peptized boehmite alumina is treated with a water dispersible polycarboxylic acid polymer and optionally with an organic water dispersible base having a molecular weight ranging from 500 to 3000 and having no more than three basic groupings to produce a treated boehmite alumina which forms a stable sol at a pH of greater than 6, the treated boehmite alumina having a dispersed particle size of less than 500 nm in the sol.</p> |
申请公布号 |
EP1742876(A2) |
申请公布日期 |
2007.01.17 |
申请号 |
EP20050780035 |
申请日期 |
2005.04.21 |
申请人 |
SASOL NORTH AMERICA INC. |
发明人 |
MARTIN, THOMAS, J.;POPE, DAVE, S. |
分类号 |
C01F7/02;C01F7/44 |
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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