FIELD: copper metallurgy; reduction of copper from sulfide compounds in concentrates, mattes and other materials.
SUBSTANCE: proposed method of reduction of copper from sulfide compounds includes reduction of copper by sulfide sulfur; sulfide copper material is charged with caustic soda at the following ratio: 1 : (0.5-2.0) and is heated at temperature 400-650°C for 0.5-3.5 h. Reduction of copper from its sulfide compounds may be performed at temperature below melting point at exclusion of forming of gaseous sulfur-containing products.
EFFECT: enhanced efficiency.
1 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF REDUCTION OF COPPER OUT OF SULPHIDE PRODUCTS | 2006 |
|
RU2329315C2 |
| METHOD OF EXTRACTION OF NOBLE METALS FROM MIDDLINGS | 2004 |
|
RU2295580C2 |
| METHOD OF RECOVERING GOLD FROM GOLD ORE CONCENTRATES | 2004 |
|
RU2259410C1 |
| METHOD OF NICKEL-BEARING SULPHIDES TREATMENT | 2012 |
|
RU2495944C1 |
| METHOD OF PRODUCTION OF CRUDE LEAD | 2005 |
|
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| METHOD FOR ELECTROLYTIC PREPARATION OF ALKALI | 2008 |
|
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| METHOD OF SODIUM HYDROXIDE PREPARATION | 2008 |
|
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| METHOD OF RECOVERING LEAD FROM OXYSULPHATE SLUDGE OF STORAGE BATTERIES | 2019 |
|
RU2693245C1 |
| METHOD FOR RECOVERY OF LEAD FROM OXYGEN COMPOUNDS OF OXYSULFATE FRACTION OF BATTERY SCRAP | 2020 |
|
RU2753670C1 |
| METHOD OF REDUCTION OF LEAD | 2005 |
|
RU2282672C1 |
