发明名称 |
Process for preparing polyaluminosilicate micro-gels of low concentration and apparatus for making the same |
摘要 |
<p>An improved method and apparatus for preparing low-concentration polyaluminosilicate microgels from a water soluble silicate and a strong acid in which the silicate and acid are mixed at a rate to produce a Reynolds number of at least 4000, the mixture is aged and then diluted to a silica concentration of not more than 1.0 wt.%. The method achieves reduced silica deposition during the preparation of the microgels.</p> |
申请公布号 |
CZ9904356(A3) |
申请公布日期 |
2000.06.14 |
申请号 |
CZ19990004356 |
申请日期 |
1997.06.04 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
MOFFETT ROBERT HARVEY;RUSHMERE JOHN DEREK |
分类号 |
C01B33/26;B01J19/00;D21H17/66;D21H21/10;(IPC1-7):C01B33/26 |
主分类号 |
C01B33/26 |
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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