| 摘要 |
FIELD: nonferrous metal metallurgy. SUBSTANCE: method involves treatment of products with ferric chloride solution at heating and stirring. Process is carried out with $$$ solution at concentration 200-400 g/l, at 100-105 C followed by separation of undissolved residue at these temperatures, cooling lead-containing solution up to (+20)-(-20 C), separation of crystalline lead chloride that is washed off with sodium sulfite from silver chloride. EFFECT: improved method of extraction. |
