发明授权
- 专利标题: Process for preparing active oxide powders
- 专利标题(中): 制备活性氧化物粉末的方法
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申请号: US880921申请日: 1978-02-24
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公开(公告)号: US4140771A公开(公告)日: 1979-02-20
- 发明人: Michael F. Berard , Orville Hunter, Jr. , Loren E. Shiers , Stephen L. Dole , Ralph W. Scheidecker
- 申请人: Michael F. Berard , Orville Hunter, Jr. , Loren E. Shiers , Stephen L. Dole , Ralph W. Scheidecker
- 申请人地址: DC Washington
- 专利权人: The United States of America as represented by the Department of Energy
- 当前专利权人: The United States of America as represented by the Department of Energy
- 当前专利权人地址: DC Washington
- 主分类号: B01J13/00
- IPC分类号: B01J13/00 ; C01F5/02 ; C01F17/00 ; C01G25/02
摘要:
An improved process for preparing active oxide powders in which cation hydroxide gels, prepared in the conventional manner are chemically dried by alternately washing the gels with a liquid organic compound having polar characteristics and a liquid organic compound having nonpolar characteristics until the mechanical water is removed from the gel. The water-free cation hydroxide is then contacted with a final liquid organic wash to remove the previous organic wash and speed drying. The dried hydroxide treated in the conventional manner will form a highly sinterable active oxide powder.