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1975-11-25 |
Kennecott Copper Corp |
Acidification of precipitate copper slurry prior to filtration and drying
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1975-01-09 |
1975-12-30 |
Continental Oil Co |
Process for removing iron from an aqueous acid solution containing iron and copper
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1975-08-04 |
1976-12-21 |
The Dow Chemical Company |
Recovery of non-ferrous metals from acidic liquors with a chelate exchange resin in presence of iron(III)
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Roman M. Genik-Sas-Berezowsky |
Recovery of precious metals from metal sulphides
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1976-08-25 |
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Inspiration Consolidated Copper Company |
Recovery of copper
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1976-06-30 |
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Inspiration Consolidated Copper Company |
Process for recovery of copper
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1978-04-17 |
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Texasgulf Inc. |
Recovery of silver, copper and zinc from partially roasted pyrite concentrate by ferric sulphate leaching
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1978-04-17 |
1979-09-25 |
Texasgulf Inc. |
Recovery of silver, copper, zinc and lead from partially roasted pyrite concentrate by acid chloride leaching
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1995-11-22 |
1997-12-16 |
Placer Dome, Inc. |
Hydrometallurgical process for copper-containing materials
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2000-07-25 |
2002-01-31 |
Phelps Dodge Corporation |
Method for recovering copper from sulfide ore materials using high temperature pressure leaching, solvent extraction and electrowinning
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MXPA03000745A
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2000-07-25 |
2004-11-01 |
Phelps Dodge Corp |
Metodo para la recuperacion de metales de materiales que contienen metal utilizando lixiviacion de temperatura a presion mediana..
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AU2001278015B2
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2000-07-25 |
2004-12-23 |
Freeport-Mcmoran Corporation |
Processing elemental sulfur-bearing materials using high temperature pressure leaching for sulfuric acid production and metal recovery
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2001-07-25 |
2002-09-17 |
Phelps Dodge Corporation |
Method for improving metals recovery using high temperature leaching
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2001-07-25 |
2009-01-13 |
Phelps Dodge Corporation |
Process for multiple stage direct electrowinning of copper
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2001-07-25 |
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Phelps Dodge Corporation |
Process for direct electrowinning of copper
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2001-07-25 |
2005-06-16 |
Phelps Dodge Corporation |
Process for recovery of copper from copper-bearing material using medium temperature pressure leaching, direct electrowinning and solvent/solution extraction
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2004-10-29 |
2012-08-15 |
Freeport-McMoran Corporation |
Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction
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2004-10-29 |
2011-11-15 |
Freeport Mcmoran Corp |
Verfahren zur mehrstufigen direkten elektrolytischen gewinnung von kupfer
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2004-10-29 |
2010-06-15 |
Freeport-Mcmoran Corporation |
Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solution extraction
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2022-12-28 |
2025-04-25 |
安徽工业大学 |
一种从电镀废水回收高纯纳米铜的方法
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