| METHOD FOR COPPER REMOVAL FROM SLUDGES OF SECONDARY COPPER ELECTROLYTIC REFINING | |
| 2024-03-14 | |
| 专利权人 | UNIV MISIS NAT SCI & TECHNOLOGY (UMNS-C) |
| 申请日期 | 2024-03-14 |
| 专利号 | RU2829623-C1 |
| 成果简介 | NOVELTY - Invention relates to metallurgy of non-ferrous and noble metals, in particular to processing of anode sludges of secondary copper electrolytic refining. Method involves oxidative leaching of sludge without heating with ammonia-ammonium solution at molar ratio of reagents [NH3⋅H2O]:[(NH4)2SO4], equal to 3-4 mol/mol, and specific consumption of the sum [NH3⋅H2O]+[NH4 +] not less than 4.8 mol./mol. Cu with air supply until oxidation-reduction potential in the system is not more than +60±5 mV relative to silver chloride electrode. Ratio of the sludge weight to the volume of the reagent solution – L:S is maintained, which enables to obtain solutions with copper concentration of not more than 0.75 mol./l. USE - Metallurgy. ADVANTAGE - Higher resource and energy saving due to exclusion of leaching pulp heating and reduction of specific consumption of reagents for ammonia-ammonium leaching in 2-2,6 times, as well as higher selectivity of copper extraction due to elimination of silver transition to leaching solution of not less than 96%. 1 cl, 1 tbl, 9 ex |
| IPC 分类号 | C22B-015/00 ; C22B-003/14 ; 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/17714 |
| 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 FOR COPPER REMOVAL FROM SLUDGES OF SECONDARY COPPER ELECTROLYTIC REFINING. RU2829623-C1[P]. 2024. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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