发明名称 |
QUASI-CRYSTALLINE HYDRATED MAGNESIUM-ALUMINIUM HYDROXY CARBOXYLATES, THEIR PREPARATION AND THEIR USE |
摘要 |
The present invention provides new compositions of matter, referred to as quasi-crystalline carboxylates (QCCs), their preparation and use. The materials comprise a quasi-crystalline hydrated magnesium-aluminium hydroxy carboxylate and are characterised by the presence of at least a strong reflection in the powder X-ray diffraction pattern at a basal spacing in the range of 5 to 15 Å. The invention further relates to a process for preparing the QCCs, Mg-Al solid solutions and anionic clays under acidic conditions. The QCC is prepared by aging an acidic mixture of a magnesium carboxylate and an aluminium source. Calcination of the QCC results in a Mg-Al solid solution; rehydration of this solid solution gives an anionic clay. |
申请公布号 |
EP1358148(A1) |
申请公布日期 |
2003.11.05 |
申请号 |
EP20020750525 |
申请日期 |
2002.01.29 |
申请人 |
AKZO NOBEL N.V. |
发明人 |
STAMIRES, DENNIS;PINNAVAIA, THOMAS, JOSEPH;BRADY, MIKE |
分类号 |
B01J21/00;B01J21/16;B01J23/00;B01J31/04;C01F7/00;C01F7/16;C07C51/41;C07C53/06;C07C53/10 |
主分类号 |
B01J21/00 |
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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