发明名称 |
A process for the preparation of solid dispersions of acid salts of tetravalent metals having lamellar structure in an inert inorganic matrix, and the products so obtained. |
摘要 |
This invention relates to a process for the preparation of solid dispersions of acid salts of tetravalent metals having lamellar structure and their salt derivatives in a silica matrix, said process consisting in a delamination of the compounds mentioned above by means of an amine, till obtaining a colloidal dispersion, in the operation of mixing said colloidal dispersion with water solutions of silica, in the gelling of silica, possibly in the process of eluting the gel products with a mineral or organic acid, and in a heat treatment at a temperature between 80 DEG C and 650 DEG C. The solid dispersions so obtained have large surface areas and can be employed as cationic exchangers; in addition, their acidity is such as to make them suitable as catalysts for acid-catalyzed reactions. |
申请公布号 |
EP0322013(A2) |
申请公布日期 |
1989.06.28 |
申请号 |
EP19880202769 |
申请日期 |
1988.12.02 |
申请人 |
ENIRICERCHE S.P.A. |
发明人 |
BELLUSSI, GIUSEPPE;CLERICI, MARIO GABRIELE;PEREGO, GIOVANNI;ALBERTI, GIULIO;COSTANTINO, UMBERTO |
分类号 |
B01J13/00;B01J27/16;B01J27/18;B01J39/02;B01J39/10;B01J39/12;C01B25/37;C07B61/00;C07C1/00;C07C1/24;C07C13/12;C07C13/20;C07C67/00 |
主分类号 |
B01J13/00 |
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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