发明授权
- 专利标题: Process for recovery of phosphate ore
- 专利标题(中): 磷矿矿石回收工艺
-
申请号: US965394申请日: 1978-12-01
-
公开(公告)号: US4511463A公开(公告)日: 1985-04-16
- 发明人: Edward N. Alexander , Richard Smith
- 申请人: Edward N. Alexander , Richard Smith
- 申请人地址: GA West Point
- 专利权人: West-Point Pepperell, Inc.
- 当前专利权人: West-Point Pepperell, Inc.
- 当前专利权人地址: GA West Point
- 主分类号: B03D1/008
- IPC分类号: B03D1/008 ; B03D1/02 ; B03D1/14
摘要:
Phosphate ore is concentrated by flotation in the presence of a half-ester of an organic dicarboxylic acid, such as maleic acid, with a saturated aliphatic alcohol containing at least 11 carbon atoms. Water and oil also are present. The half-ester may be partly neutralized, e.g. with caustic soda, in an amount at most sufficient to raise the pH to 7.0.
公开/授权文献
- US5895513A Takeout mechanism for an I.S. machine 公开/授权日:1999-04-20
信息查询