|
| 电积法从银电解废液中回收银的研究 |
| A Study on Recovery of Silver from Spent Solution by Electrodeposition |
| Received:October 13, 2016 |
| DOI： |
| 中文关键词: 电沉积 电解废液 电解槽 银 回收 |
| 英文关键词: electro-deposition spent solution of electrolyte electrolytic cell silver recovery |
| 基金项目: |
| Author Name | Affiliation | E-mail | | TAN Mingliang | Yongxing Sino-Platinum Metals Resources Co.Ltd., Chenzhou 423399, Hunan, China
State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co.Ltd., Kunming 650106, China | tanmingliang0801@163.com | | YANG Quan | Yongxing Sino-Platinum Metals Resources Co.Ltd., Chenzhou 423399, Hunan, China
State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co.Ltd., Kunming 650106, China | | | GUAN Youxiang | Yongxing Sino-Platinum Metals Resources Co.Ltd., Chenzhou 423399, Hunan, China
State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co.Ltd., Kunming 650106, China | | | XIONG Qingfeng | Yongxing Sino-Platinum Metals Resources Co.Ltd., Chenzhou 423399, Hunan, China
State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co.Ltd., Kunming 650106, China | | | WANG Shizhang | Yongxing Sino-Platinum Metals Resources Co.Ltd., Chenzhou 423399, Hunan, China | | | PENG Chunsheng | Yongxing Sino-Platinum Metals Resources Co.Ltd., Chenzhou 423399, Hunan, China | | | MA Fangce | Yongxing Sino-Platinum Metals Resources Co.Ltd., Chenzhou 423399, Hunan, China | | | LIU Li | Yongxing Sino-Platinum Metals Resources Co.Ltd., Chenzhou 423399, Hunan, China | |
|
| Hits: 3027 |
| Download times: 3462 |
| 中文摘要: |
| 研究了电沉积法从银电解废液中提取高纯银的工艺。考察了电解槽槽电压、银电解废液pH、酸度调节试剂对电沉积银的影响。结果表明，用20%氨水将银电解废液pH调到3，电解槽槽电压为1.8 V，电流密度为60 A/m2，温度35℃，电沉积25 h后，银回收率大于99%，银粉达到国标(GB/T 4135-2002) IC-Ag99.99%的纯度要求。 |
| 英文摘要: |
| The process of extracting silver from spent silver electrolyte by electrodeposition has been proposed. The influencing parameters, such as the electrolytic cell voltage and the pH of spent sliver electrolyte and the reagent for adjusting pH, were investigated in order to obtain the optimum process conditions. Silver produced from the process could conform to the state quality standard (GB/T 4135-2002) for 99.99% silver, when pH value of the electrolyte was adjusted to 3 with 20% ammonia and the electrodeposition was carried out at 35℃ for 25 h under 1.8 V electrolytic cell voltage and 60 A/m2 electric current density. The recovery rate of silver reached 99%. |
|
View Full Text
View/Add Comment Download reader |
| Close |
|
|
|