发明授权
- 专利标题： Process and apparatus for granulating powdery materials
- 专利标题（中）： 粉状物料制粒工艺及装置
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申请号： US102819申请日： 1987-09-22
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公开(公告)号： US4807819A公开(公告)日： 1989-02-28
- 发明人: Alfons Kreher , Werner Nagel , Bernd Brandt , Albert Peters
- 申请人： Alfons Kreher , Werner Nagel , Bernd Brandt , Albert Peters
- 申请人地址： DEX Frankfurt am Main
- 专利权人： Degussa Aktiengesellschaft
- 当前专利权人： Degussa Aktiengesellschaft
- 当前专利权人地址： DEX Frankfurt am Main
- 优先权： DEX3431865 19840830
- 主分类号： B01J2/22
- IPC分类号： B01J2/22 ; C09C1/30 ; C09C3/04 ; B02C4/30
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.
公开/授权文献
- US5616711A Methods of producing aminobutene derivatives 公开/授权日：1997-04-01
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