发明授权
- 专利标题: Process of using roll press grinding aid for granulated blast furnace slag
- 专利标题(中): 使用辊压研磨助剂的造粒高炉渣的工艺
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申请号: US512732申请日: 1995-08-08
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公开(公告)号: US5720796A公开(公告)日: 1998-02-24
- 发明人: Josephine Ho-wah Cheung , James Michael Gaidis
- 申请人: Josephine Ho-wah Cheung , James Michael Gaidis
- 申请人地址: NY New York
- 专利权人: W. R. Grace & Co.-Conn.
- 当前专利权人: W. R. Grace & Co.-Conn.
- 当前专利权人地址: NY New York
- 主分类号: B02C4/00
- IPC分类号: B02C4/00 ; B02C23/06 ; C04B5/00 ; C04B18/14 ; C04B24/26 ; C22B7/04
摘要:
A grinding aid and an enhanced roll press method of grinding granulated blast-furnace slag by treating the slag feed of the roll press with from about 0.002 to 0.2 weight percent of polyacrylic acid or its alkali metal salt in combination with up to about 4 weight percent water.