FIELD: metallurgy.
SUBSTANCE: method includes melting of the radioelectronic wastes in the deoxidizing atmosphere upon presence of silicon dioxide with production of copper-nickel anode containing silicon in amount from 2.5 to 5%. The produced electrode containing lead admixtures from 1.3 to 2.4% is subjected to electrolytic dissolution using the nickel sulphuric acid electrolyte with production of the sludge with noble metals.
EFFECT: reduced losses of noble metals in sludge, increased rate of dissolution due to reduced passivation of the anodes and reduced power consumption.
1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| EXTRACTION METHOD OF NOBLE METALS FROM WASTES OF RADIO-ELECTRONIC INDUSTRY | 2007 |
|
RU2357012C1 |
| METHOD FOR EXTRACTING GOLD FROM GOLD CONTAINING POLYMETALLIC MATERIALS | 2000 |
|
RU2181780C2 |
| METHOD FOR PROCESSING SECONDARY GOLD-CONTAINING MATERIAL TO PURE GOLD | 2001 |
|
RU2176279C1 |
| METHOD FOR PROCESSING OF COPPER-BASED ELECTRONIC SCRAP CONTAINING NOBLE METALS | 2011 |
|
RU2486263C1 |
| METHOD OF EXTRACTION OF SILVER FROM THE ACID SOLUTION OF SILVER NITRATE BY METHOD OF ELECTROWINNING | 2017 |
|
RU2650372C1 |
| METHOD OF ELECTROCHEMICAL EXTRACTION OF SILVER FROM SILVER-BEARING CURRENT-CONDUCTING WASTES | 2011 |
|
RU2467082C1 |
| METHOD OF SILVER EXTRACTION FROM SILVER-CONTAINING ALLOY | 2013 |
|
RU2540242C1 |
| METHOD OF EXTRACTION OF GOLD AND SILVER FROM POLYMETALLIC RAW MATERIAL | 2004 |
|
RU2258768C1 |
| ELECTRIC METHOD OF PRODUCING COPPER POWDER | 0 |
|
SU876759A1 |
| METHOD OF WASTE PROCESSING OF ELECTRONIC AND ELECTROTECHNICAL INDUSTRY | 2016 |
|
RU2644719C2 |
