发明名称 |
Production and use of polysilicate particulate materials |
摘要 |
<p>A method of preparing a particulate material comprising the steps of adding silicic acid solution, optionally doped with aluminum, optionally added to a slurry of pre-existing nanoparticles at a neutral to slightly acidic pH of no more than seven, and at a temperature of about 20° to 30°C. This yields a polysilicate particulate dispersion. Then, the pH of the dispersion is raised to greater than seven, to stabilize/reinforce particles of the particulate dispersion. Optionally, the particles may be dried, and have increased porosity and surface area.</p> |
申请公布号 |
EP2008970(A1) |
申请公布日期 |
2008.12.31 |
申请号 |
EP20070252638 |
申请日期 |
2007.06.29 |
申请人 |
NALCO COMPANY |
发明人 |
BATLLO, FRANCOIS;HOLLAND, BRIAN T.;KRASNIEWSKI, JOHN M.;LONG, KIM M.;ROMBA, MICHAEL A.;WELZ, SASCHA;WORKMAN, DAVID P. |
分类号 |
C01B33/143;C01B33/20;C01B33/26;C09C1/30 |
主分类号 |
C01B33/143 |
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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