发明授权
US4680043A Method for densification of powdery silica and article formed thereby
失效
粉末二氧化硅的致密化方法和由此形成的制品
- 专利标题： Method for densification of powdery silica and article formed thereby
- 专利标题（中）： 粉末二氧化硅的致密化方法和由此形成的制品
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申请号： US757811申请日： 1985-07-22
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公开(公告)号： US4680043A公开(公告)日： 1987-07-14
- 发明人: Herbert Ginter , Reinhard Klingel , Reinhard Manner
- 申请人： Herbert Ginter , Reinhard Klingel , Reinhard Manner
- 申请人地址： DEX Frankfurt
- 专利权人： Degussa Aktiengesellschaft
- 当前专利权人： Degussa Aktiengesellschaft
- 当前专利权人地址： DEX Frankfurt
- 优先权： DEX3429051 19840807
- 主分类号： C01B33/18
- IPC分类号： C01B33/18 ; B04B1/00 ; B30B11/00 ; C01B33/16 ; C03B37/00 ; C03C1/00 ; C09C1/30 ; C03B37/027
摘要：
A powdery substance, such as for example pyrogenically prepared silicon dioxide, is subjected to predensification through the utilization of centrifugal force in a centrifuge. Subsequently, the centrifuge receptacles are closed with a free flying piston. Through utilization of the centrifugal force, there is achieved through the use of the free flying piston an additional pressure which is exerted on the predetermined powdery substance.
公开/授权文献
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