FIELD: metallurgy.
SUBSTANCE: process comprises treatment of slag with calcium oxide in the presence of reducing agent at increased temperature. Note here that copper slag-to- solid carboniferous reducer carbon ratio makes 1:(0.05-0.09). Mix surface is blown by oxygen-containing oxidiser using the upper non-intrusive blowing with flow rate of oxygen-containing oxidiser in amount of defined by oxygen content therein, 50-100 kg per ton of slag.
EFFECT: decreased content of nonferrous metals in slag, simplified process.
1 tbl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PROCEDURE FOR DEPLETION OF SOLID COPPER-ZINC SLAG | 2009 |
|
RU2398031C1 |
| PROCESSING METHOD OF COPPER SULPHIDE MATERIALS ON BLISTER COPPER | 2008 |
|
RU2359046C1 |
| METHOD FOR PROCESSING OF LEAD AND ZINC CONCENTRATES | 2012 |
|
RU2486267C1 |
| METHOD OF CONTINUOUS PROCESSING OF MIXED COPPER-CONTAINING RAW MATERIAL | 1995 |
|
RU2081195C1 |
| PROCEDURE FOR PROCESSING SULPHUR WASTES CONTAINING NOBLE METALS | 2009 |
|
RU2394924C1 |
| METHOD OF CONTINUOUS FUSION OF SULFIDE MATERIALS | 1990 |
|
RU2020170C1 |
| METHOD OF PROCESSING RAW MATERIALS CONTAINING NONFERROUS METALS AND IRON | 2000 |
|
RU2194781C2 |
| SYSTEM AND METHOD OF COPPER ANODE AFFINAGE | 2011 |
|
RU2573846C2 |
| COPPER - NICKEL SULFIDE CONCENTRATE PROCESSING METHOD | 2004 |
|
RU2255996C1 |
| METHOD OF DEPLETING COPPER-CONTAINING SLAGS | 1997 |
|
RU2105075C1 |
