发明名称 |
METHOD OF PRODUCING SILICA SOLS WITH CONTROLLABLE BROAD SIZE DISTRIBUTION AND MINIMUM PARTICLE SIZE |
摘要 |
<p>Colloidal silica having a controllable broad particle size distribution and a controllable minimum particle size is disclosed and claimed. Particles below a predetermined size are excluded from the product colloidal silica of the invention. A method for continuously producing the desired colloidal composition is disclosed comprising the steps of providing preformed silica particles having a surface area which controls the particle size of the colloidal silica product, adding a feed silica comprising an alkaline solution and silicate at a feed rate which is less than a nucleation rate.</p> |
申请公布号 |
WO2010036797(A1) |
申请公布日期 |
2010.04.01 |
申请号 |
WO2009US58216 |
申请日期 |
2009.09.24 |
申请人 |
NALCO COMPANY;MACDONALD, DENNIS, L. |
发明人 |
MACDONALD, DENNIS, L. |
分类号 |
C01B33/141 |
主分类号 |
C01B33/141 |
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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