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公开(公告)号:US5256196A
公开(公告)日:1993-10-26
申请号:US808804
申请日:1991-12-18
申请人: Marian Chjonowski , Werner Nagel , Karl Meier , Wolfgang Leonhardt , Heinz Esch
发明人: Marian Chjonowski , Werner Nagel , Karl Meier , Wolfgang Leonhardt , Heinz Esch
CPC分类号: C11D3/373 , C09C1/3081 , C11D3/0026 , C11D3/124 , C01P2006/12 , C01P2006/19
摘要: A precipitated silica paste is produced by dispersing precipitated silica in silicon oil. During the hydrophobing of precipitated silicas, the precipitated silica paste is added as a hydrophobing agent in the suspension phase. The product is spray-dried, tempered and ground.
摘要翻译: 通过将沉淀二氧化硅分散在硅油中制备沉淀二氧化硅浆料。 在沉淀二氧化硅的疏水化过程中,将沉淀二氧化硅浆料作为疏水剂加入到悬浮相中。 该产品经喷雾干燥,回火和研磨。
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公开(公告)号:US4807819A
公开(公告)日:1989-02-28
申请号:US102819
申请日:1987-09-22
申请人: Alfons Kreher , Werner Nagel , Bernd Brandt , Albert Peters
发明人: Alfons Kreher , Werner Nagel , Bernd Brandt , Albert Peters
CPC分类号: C09C1/3036 , B01J2/22 , C09C3/045 , C01P2006/19
摘要: Finely divided powdery materials such as, e.g., precipitated silica are granulated by means of two rolls, one of which has a filter surface and the other has a profiled covering, in which the shafts of these rolls are arranged vertically one above the other and the finely divided powdery material is introduced into the gap between the rolls by means of at least one feed screw.
摘要翻译: 细碎的粉末材料例如沉淀二氧化硅通过两个辊进行造粒,其中一个辊具有过滤表面,另一个具有异型覆盖物,其中这些辊的轴垂直一个地彼此上下排列, 细碎的粉末材料通过至少一个进料螺杆被引入到辊之间的间隙中。
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