Recovery of copper from materials containing copper and acid soluble iron compounds

Recovery of copper from materials containing copper and acid soluble iron compounds

The invention relates to a method of controlling acid soluble iron while obtaining solutions of copper (I) salts in water containing an organo nitrile (selected from the group consisting of acetonitrile, 2-hydroxycyanoethane, acrylonitrile and propionitrile) from materials containing copper and iron...

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Hauptverfasser: PARKER, ALAN J, MUIR, DAVID M
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
FERROUS OR NON-FERROUS ALLOYS
INORGANIC CHEMISTRY
METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator PARKER
ALAN J
MUIR
DAVID M
description The invention relates to a method of controlling acid soluble iron while obtaining solutions of copper (I) salts in water containing an organo nitrile (selected from the group consisting of acetonitrile, 2-hydroxycyanoethane, acrylonitrile and propionitrile) from materials containing copper and iron compounds, said solutions having a low iron content, which method comprises leaching the material with a solution of copper (II) salt in water containing the selected organo nitrile, the amount of nitrile present being sufficient to stabilize the resulting copper (I) solution and the pH of the mixed solution being controlled in relation to the relative concentrations of the copper (II) salt, copper (I) salt and nitrile to ensure that the iron compounds are not significantly soluble therein, and then separating the copper (I) solution from the insoluble materials.
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subjects CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
FERROUS OR NON-FERROUS ALLOYS
INORGANIC CHEMISTRY
METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title Recovery of copper from materials containing copper and acid soluble iron compounds
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