发明授权
- 专利标题： Process for producing stabilized alumina having enhanced resistance to loss of surface area at high temperatures
- 专利标题（中）： 具有增强耐高温表面积损失的稳定化氧化铝的生产方法
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申请号： US974560申请日： 1992-11-12
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公开(公告)号： US5837634A公开(公告)日： 1998-11-17
- 发明人: Kevin J. McLaughlin , Ben L. Decker , Mark M. Chavez
- 申请人： Kevin J. McLaughlin , Ben L. Decker , Mark M. Chavez
- 申请人地址： TX Houston
- 专利权人： Condea Vista Company
- 当前专利权人： Condea Vista Company
- 当前专利权人地址： TX Houston
- 主分类号： B01J21/04
- IPC分类号： B01J21/04 ; B01J23/10 ; C01F7/02 ; C04B35/111 ; C04B35/10
摘要：
A process for preparing a stabilized alumina wherein an aqueous slurry of a precursor boehmite alumina is admixed with an effective amount of a stabilizer such as a water-soluble salt of a polyvalent metal cation of Groups IIA and IIIB of the periodic table, the slurry containing the alumina and the stabilizer being aged at a pH of from about 3 to about 9 and a temperature greater than about 70.degree. C. for a period of time sufficient to convert the greater portion of said alumina to a colloidal sol, the colloidal sol being recovered and calcined to produce a stabilized alumina.
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