发明授权
US5021378A Molded articles based on pyrogenically prepared silicon dioxide, process
for their production and their use
失效
基于热解制备的二氧化硅的成型制品，其生产和使用的过程
- 专利标题： Molded articles based on pyrogenically prepared silicon dioxide, process for their production and their use
- 专利标题（中）： 基于热解制备的二氧化硅的成型制品，其生产和使用的过程
-
申请号： US488379申请日： 1990-02-23
-
公开(公告)号： US5021378A公开(公告)日： 1991-06-04
- 发明人: Klaus Deller , Reinhard Klingel , Helmfried Krause
- 申请人： Klaus Deller , Reinhard Klingel , Helmfried Krause
- 申请人地址： DEX
- 专利权人： Degussa Aktiengesellschaft
- 当前专利权人： Degussa Aktiengesellschaft
- 当前专利权人地址： DEX
- 优先权： DEX3803895 19880209
- 主分类号： C04B38/06
- IPC分类号： C04B38/06 ; B01J21/08 ; B01J21/12 ; B01J32/00 ; B01J35/10 ; B01J37/00 ; C04B35/14
摘要：
Molded articles based on pyrogenically prepared silicon dioxide and having the following physical-chemical characteristic data:______________________________________ External diameter 2 to 15 mm BET surface area 50 to 400 m.sup.2 /g Total Pore volume 0.6 to 1.3 ml/g Crushing strength 40 to 120 N Pore size distribution no pores 95% by weight of SiO.sub.2 remainder Al.sub.2 O.sub.3. ______________________________________ These products are produced by compacting pyrogenically prepared silicon dioxide with kaolin and/or graphite, sugar, starch, urea or wax with addition of water, drying the mixture at a temperature of from 80.degree. to 120.degree. C. and comminuting it to form a powder, pressing the powder to form the desired article, and tempering the articles at a temperature of from 400.degree. to 1200.degree. C. for a period of 0.5 to 6 hours. The molded bodies can be used as a catalyst support or catalyst.
公开/授权文献
- US5880103A Immunomodulatory peptides 公开/授权日：1999-03-09