FIELD: metallurgy.
SUBSTANCE: charge is prepared by mixing of copper galvanic sludge with sodium carbonate, sodium chloride and with coal or coal and a cassiterite concentrate. Recovery of oxidised sludge metals is performed in a reaction tank by charge melting at the temperature of 1000-1100°C during 1.5 h. The obtained melt is cooled and hardened copper alloy is separated from sludge.
EFFECT: increasing an extraction degree of copper from sludges of galvanic copper-plating; reducing the number of impurities as a part of a crude alloy.
2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| LEAD PRODUCTION FROM TINSTONE CONCENTRATE | 2013 |
|
RU2528297C1 |
| PROCEDURE FOR PRODUCTION OF TIN OUT OF KASSITERIT CONCENTRATE | 2009 |
|
RU2393252C1 |
| METHOD OF TIN MANUFACTURING FROM CASSITERITE CONCENTRATE | 2006 |
|
RU2333268C2 |
| METHOD FOR REPROCESSING OF GALVANIC SLUDGE | 2002 |
|
RU2235795C1 |
| METHOD OF PROCESSING GALVANIC PROCESS COPPER-BEARING RESIDUES | 2012 |
|
RU2484156C1 |
| METHOD OF PREPARATION OF GALVANIC SLUDGE FOR ITS UTILIZATION | 2017 |
|
RU2667566C1 |
| METHOD OF PROCESSING MATERIALS CONTAINING PLATINUM METALS AND CARBON REDUCING AGENT | 2000 |
|
RU2164538C1 |
| ELECTRIC ARC METHOD FOR PRODUCING OF FIRST-GRADE TIN (ALLOY WITH COMPOSITION APPROXIMATING THAT OF 04 GRADE) FROM CASSITERITE CONCENTRATE | 2002 |
|
RU2224037C2 |
| METHOD OF PROCESSING ELECTROPLATING SLUDGE | 2010 |
|
RU2408739C1 |
| METHOD OF COMPLEX PROCESSING OF WASTEWATER GALVANIC PRODUCTION | 2018 |
|
RU2674206C1 |
