| Method of extracting lead from copper-free electrolytic refining slurries involves two-stage leaching | |
| 2024-02-19 | |
| 专利权人 | UNIV MISIS NAT SCI & TECHNOLOGY (UMNS-C) |
| 申请日期 | 2024-02-19 |
| 专利号 | RU2829622-C1 |
| 成果简介 | NOVELTY - Invention relates to processing of wastes, in particular to extraction of lead during processing of copper-free slurries from electrolytic refining of secondary copper. Method involves two-stage leaching of said slurries. At the same time at the first stage leaching is carried out without heating with ammonium carbonate solution at its consumption of not less than 0.64 kg/kg of Pb, L:S of not less than 3:1 and duration of not less than 90 minutes. Obtained precipitate is leached at the second stage without heating with acetic acid solution at its consumption of not less than 0.42 kg/kg of Pb, L:S of not less than 3:1 and duration of not less than 60 minutes. USE - Processing of wastes. ADVANTAGE - Reduced specific consumption of reagents, reduced total duration of leaching, increased complexity of use of raw materials due to increased extraction of Pb from slurries to 96% and, as a result, prevention or significant reduction of concentration of Pb in exhaust gases of subsequent processing. 1 cl, 1 tbl, 6 ex |
| IPC 分类号 | C22B-013/00 ; C22B-003/14 ; C22B-003/16 ; C22B-007/00 |
| 国家 | 俄罗斯 |
| 专业领域 | 材料科学 |
| 语种 | 英语 |
| 成果类型 | 专利 |
| 文献类型 | 科技成果 |
| 条目标识符 | http://119.78.100.226:8889/handle/3KE4DYBR/18075 |
| 专题 | 中国科学院新疆生态与地理研究所 |
| 作者单位 | UNIV MISIS NAT SCI & TECHNOLOGY (UMNS-C) |
| 推荐引用方式 GB/T 7714 | VYDYSH S O,BOGATYREVA E V. Method of extracting lead from copper-free electrolytic refining slurries involves two-stage leaching. RU2829622-C1[P]. 2024. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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