发明名称 |
Copper leach process aids |
摘要 |
Methods for enhancing the leaching of copper from copper bearing ores with an aqueous sulfuric acid leach solution are disclosed wherein 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 aqueous sulfuric acid leach solution.
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申请公布号 |
US6409799(B1) |
申请公布日期 |
2002.06.25 |
申请号 |
US19990443593 |
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 |
C22B15/00;(IPC1-7):B01D11/00;B01F1/00;C21B15/00 |
主分类号 |
C22B15/00 |
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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