发明名称 |
Copper leach process aids |
摘要 |
A method for inhibiting crud formation and organic in aqueous solvent and aqueous in organic solvent entrainment in the solvent extraction of copper from an aqueous sulfuric acid pregnant leach solution is disclosed. The method comprises adding an antifoam formulation stable at a solution pH of about 1 to 2 is added. A preferred antifoam formulation comprises a glycol ester and an alkyl phenol ethoxylate in a paraffinic oil solvent added to the acid solution.
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申请公布号 |
US6261341(B1) |
申请公布日期 |
2001.07.17 |
申请号 |
US19990443591 |
申请日期 |
1999.11.19 |
申请人 |
BETZDEARBORN INC.;CORPORACION NACIONAL DEL COBRE DE CHILE |
发明人 |
CIFUENTES RICARDO ARANCIBIA;ROE DONALD C.;CHAVEZ JORGE VERGARA;INZUNZA ANDRES REGHEZZA |
分类号 |
C22B3/26;C22B15/00;(IPC1-7):C22B3/20 |
主分类号 |
C22B3/26 |
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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