Process for the production of finely divided silicic acid by spray drying
- 申请公布号：
- US4224295(A)
- 申请号：
- US19780916020
- 申请日期：
- 1978.06.15
- 申请公布日期：
- 1980.09.23
- 申请人：
- DEUTSCHE GOLD- UND SILBER-SCHEIDEANSTALT VORMALS ROESSLER
- 发明人：
- BRANDT, BERND;NAUROTH, PETER;PETERS, ALBERT;REINHARDT, HELMUT
- 分类号：
- C01B33/18;C01B33/193;C09C3/00;(IPC1-7):C01B33/12
- 主分类号：
- C01B33/18
- 摘要：
- A finely divided silicic acid having a pH>6 is prepared by spray drying, in the presence of a base or basic-reacting substance, a highly concentrated silicic acid suspension having excess, unwanted acidity.
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