发明名称 |
WERKWIJZE TER BEREIDING VAN POREUS, ZUIVER SILICIUM- DIOXYDE. |
摘要 |
<p>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 dried and ground to a predetermined particle size. 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.</p> |
申请公布号 |
NL7807221(A) |
申请公布日期 |
1979.01.22 |
申请号 |
NL19780007221 |
申请日期 |
1978.07.04 |
申请人 |
STAMICARBON B.V. TE GELEEN. |
发明人 |
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分类号 |
B01J20/10;C01B33/16;C08F10/00;(IPC1-7):01B33/16;01J23/26;01J21/08;08F4/24;08F10/00 |
主分类号 |
B01J20/10 |
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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