发明名称 |
Phosphate rock benefication |
摘要 |
This invention provides an improved method for the rougher flotation of phosphate ore using sodium carbonate to control the pH at about 9.6-10.5. The method facilitates improved recovery of phosphate from its ore; in addition the Bone Phosphate of Lime (BPL) of the phosphate concentrate increases, which provides further advantages in that subsequent steps are improved by virtue of receiving a feed of greater purity. There are also certain environmental advantages obtained when ammonia is replaced with sodium carbonate and the operational safety of the flotation system is enhanced when ammonia is replaced with sodium carbonate.
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申请公布号 |
US5221466(A) |
申请公布日期 |
1993.06.22 |
申请号 |
US19910814437 |
申请日期 |
1991.12.30 |
申请人 |
FREEPORT-MCMORAN RESOURCE PARTNERS, LIMITED PARTNERSHIP |
发明人 |
GARCIA, STEVEN C.;STANIEK, CHARLES T. |
分类号 |
B03D1/002;B03D1/02 |
主分类号 |
B03D1/002 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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