发明名称 |
Two step removal of metal ions from effluents |
摘要 |
Almost complete elimination of metal ions in aqueous effluents can be effected by treating said effluent with a base and then adding amorphous, hydrated magnesium silicate. This sequential process allows metal ion concentration to be reduced to less than 0.1 part per million while using a fairly small amount of amorphous hydrated magnesium silicate.
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申请公布号 |
US4256577(A) |
申请公布日期 |
1981.03.17 |
申请号 |
US19790049703 |
申请日期 |
1979.06.18 |
申请人 |
PQ CORPORATION |
发明人 |
CASSELLA, VINCENT J.;IRANI, MAZIN R. |
分类号 |
C02F1/28;C02F9/00;(IPC1-7):C02F1/52 |
主分类号 |
C02F1/28 |
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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