发明名称 |
COMPOSITION FOR REMOVING ARSENIC FROM AQUEOUS STREAMS |
摘要 |
Arsenic is removed from water and other aqueous feeds by (1) treating the feed with a compound containing cerium in the +4 oxidation state, preferably cerium dioxide, to oxidize arsenic in the +3 oxidation state to arsenic in the +5 oxidation state and (2) removing the arsenic in the +5 oxidation state from the aqueous phase, normally by contacting the treated feed with alumina or other precipitating agent containing cations in the +3 oxidation state.
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申请公布号 |
US2008093580(A1) |
申请公布日期 |
2008.04.24 |
申请号 |
US20070925247 |
申请日期 |
2007.10.26 |
申请人 |
UNION OIL COMPANY OF CALIFORNIA DBA UNOCAL |
发明人 |
WITHAM RICHARD D.;MCNEW EDWARD B.;BURBA JOHN L.III |
分类号 |
C02F1/52;C02F1/28;C02F1/62;C02F1/72 |
主分类号 |
C02F1/52 |
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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