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PROCESS FOR IMPROVING THE RHEOLOGICAL PROPERTIES OF A PRECIPITATED SIO2 SUSPENSION
PROCESS FOR IMPROVING THE RHEOLOGICAL PROPERTIES OF A PRECIPITATED SIO2 SUSPENSION
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机译:改善Sio2悬浮悬浮液流变性的方法
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摘要
The present invention provides a process for improving the rheological properties of a suspension of precipitated silica by the addition of an aluminum compound, thereby producing a sprayable suspension or slurry with a pH of greater than 3.5, a solids content of at least about 15% by weight, which may be spray dried to form silica in either powder or microbead form. In a preferred embodiment, the aluminum compound added to the suspension is in the form of sodium aluminate.
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