发明名称 |
Process of preparing a porous, pure silica |
摘要 |
Process for the preparation of a porous, pure silica which is particularly suitable as a catalyst support for a chromium-oxide catalyst used in polymerizing of olefins. The process comprises the steps of converting a silicon-halogen compound to a silica and then admixing with water to form a silica gel. The gel is then spray-dried to achieve the required particle size and pore volume. The silica can then be made into a catalyst by placing on the support a chromium compound and then heating in a non-reducing atmosphere.
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申请公布号 |
US4225464(A) |
申请公布日期 |
1980.09.30 |
申请号 |
US19780924746 |
申请日期 |
1978.07.14 |
申请人 |
STAMICARBON, B.V. |
发明人 |
SCHOLTEN, JOSEPH J. F.;VAN DE LEEMPUT, LAMBERTUS J. M. A. |
分类号 |
C01B33/157;B01J20/10;B01J23/26;C01B33/158;C01B33/16;C08F10/00;(IPC1-7):B01J29/00;C01B33/12 |
主分类号 |
C01B33/157 |
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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