| 发明名称 |
IMPROVED METHOD FOR PREPARING LOW-CONCENTRATION POLYALUMINOSILICATE MICROGELS |
| 摘要 |
An improved method and apparatus for preparing low-concentration polyaluminosilicate microgels from a water soluble silicate and an alkali metal aluminate in which the silicate and the aluminate 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. |
| 申请公布号 |
CA2293720(C) |
申请公布日期 |
2008.02.05 |
| 申请号 |
CA19982293720 |
申请日期 |
1998.06.12 |
| 申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
MOFFETT, ROBERT HARVEY;RUSHMERE, JOHN DEREK |
| 分类号 |
B01J13/00;C01B33/26;A61K8/44;A61K31/195;A61K31/22;A61K31/24;A61K47/06;A61K47/08;A61Q13/00;A61Q15/00;C01B33/143 |
主分类号 |
B01J13/00 |
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