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| 等离子熔炼铁合金溶解液中钯的萃取分离研究 |
| Study on extraction and separation of palladium from the dissolved solution of ferroalloy produced in the plasma melting process |
| Received:January 08, 2023 |
| DOI： |
| 中文关键词: 二次资源 铁合金溶解液 钯 萃取 反萃 |
| 英文关键词: secondary resources ferroalloy solution palladium extraction reverse extraction |
| 基金项目:国家重点研发计划-超大型及强化冶金特种设备研制及应用(2023YFC2908005) |
| Author Name | Affiliation | | YANG Quan | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China | | BAI Xianglin | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China
Kunming Insitute of Precious Metals, Kunming, 650106, China | | HAN Jibiao | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China | | WU Xilong | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China | | ZHAO Yu | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China | | LI Yong | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China | | CHEN Mingjun | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China | | MA Wangrui | Sino-Platinum Metals Resources Yimen Co.Ltd., Yuxi 651100, Yunnan, China |
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| 中文摘要: |
| 对等离子熔炼铁合金溶解液，利用001×7阳离子树脂吸附贱金属杂质，研究了除杂后钯的萃取分离工艺。通过对比选择LIX84-I萃取剂，研究了萃取体系的盐酸浓度、氯离子浓度、萃取剂浓度、添加剂N263用量，以及搅拌速度、搅拌时间、萃取相比、萃取级数、萃取温度等条件对萃取钯的影响。得到最佳萃取条件为，在0.1 mol/L HCl中，有机相为5% LIX84-I- 2% N263- 93% Solvesso150，搅拌速度1000 r/min，搅拌时间5 min，O/A比1:1，温度28~32 ℃内三级萃取，钯萃取率99.9%。有机相经1 mol/L HCl洗涤，10 mol/L HCl三级反萃，反萃率95%。 |
| 英文摘要: |
| After ferroalloy produced in the plasma melting process was dissolved, base metals were separated from the resulting solution via the adsorption using 001×7 cation resin and then palladium was extracted by an organic solvent LIX84-I. The effects of the concentration of hydrochloric acid, chloride ion and LIX84-I on extraction efficiency was investigated. Other affecting factors were also studied including N263 dosage, stirring speed, stirring time, extraction ratio, extraction stages and extraction temperature. 1 and 10 mol/L HCl were used, espectively, for the washing and stripping process. The results showed that the extraction of palladium with LIX84-I was an endothermic reaction. The extraction rate of palladium reached 99.9% under these conditions of low acid medium, 5% LiX84-I -2% N263 - 93% Solvesso 150 as the organic phase, stirring speed at 1000 r/min and stirring time for 5 min as well as O/A ratio at 1:1 and temperature from 301~305 K. A stripping rate of 95% was realized by 10 mol/L hydrochloric acid following a three-stage reverse extraction. |
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