发明授权
- 专利标题： Bauxite processing
- 专利标题（中）： 铝土矿加工
-
申请号： US910057申请日： 1992-07-08
-
公开(公告)号： US5279645A公开(公告)日： 1994-01-18
- 发明人: Albert Rijkeboer
- 申请人： Albert Rijkeboer
- 申请人地址： GBX London
- 专利权人： Shell Research Limited
- 当前专利权人： Shell Research Limited
- 当前专利权人地址： GBX London
- 优先权： GBX9114870 19910710
- 主分类号： C01F7/06
- IPC分类号： C01F7/06 ; C22B1/02
摘要：
An improved process for the removal of organic matter from bauxite ore containing gibbsite comprises heating the ore under roasting conditions including a roasting temperature of from about 400.degree. C. to about 600.degree. C. with oxygen-containing roasting gas having a moisture content of less than 1% by volume water until the water of crystallization of the alumina present in the treated product is less than 0.5 mole per mole of alumina.
公开/授权文献
- US5857827A Cassette chamber 公开/授权日：1999-01-12
信息查询
IPC分类:
