FIELD: nonferrous metallurgy. SUBSTANCE: method comprises precipitate of lead salt at pH <1.5 from salt solution following etching of lead concentrate. Then, lead sulfate carbonization is carried out with (Na2CO3+CO2) solution at 50-60 C to form lead carbonate, which is dissolved in inorganic or organic solvent. EFFECT: avoided pyrometallurgic processes, increased lead recovery, and improved environmental safety. 1 dwg, 2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR HYDROMETALLURGIC PROCESSING LEAD-CONTAINING CONCENTRATES | 2002 |
|
RU2233343C2 |
| MANGANESE DIOXIDE PRODUCTION PROCESS | 2001 |
|
RU2193527C1 |
| METHOD FOR PROCESSING LEAD- AND SULFIDE-CONTAINING PLACERS OF GOLD | 2000 |
|
RU2196839C2 |
| METHOD OF PURIFICATION OF CIS-DICHLOROAMMINISO-PROPYLAMINPLATINUM (II) | 1999 |
|
RU2186068C2 |
| METHOD OF LOCALIZATION OF TECHNOGENIC COPPER | 1999 |
|
RU2182131C2 |
| PROCESS FOR THE SELECTIVE RECOVERY OF LEAD AND SILVER AND CARBONATE LEAD AND SILVER CONCENTRATE, OBTAINED BY THE METHOD ABOVE | 2014 |
|
RU2670117C2 |
| METHOD FOR PREPARING LEAD TUNGSTATE PbWO | 2001 |
|
RU2206509C1 |
| METHOD FOR TREATMENT OF LOW-GRADE OXIDIZED ZINC ORES AND CONCENTRATES WITH ZINC, MANGANESE, IRON, LEAD, SILVER, CALCIUM AND SILICON DIOXIDE RECOVERY | 2010 |
|
RU2441930C1 |
| METHOD OF THE COMPLEX REPROCESSING OF THE LEAD-ACID ACCUMULATORS SCRAP | 2005 |
|
RU2274669C1 |
| METHOD OF PROCESSING LEAD WASTES CONTAINING NOBLE AND RARE METALS | 2001 |
|
RU2191835C1 |
