贵金属2024,Vol.45Issue(3) :1-6.

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

杨泉 白向林 韩继标 吴喜龙 赵雨 李勇 陈明军 马王蕊
贵金属2024,Vol.45Issue(3) :1-6.

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

杨泉 1白向林 2韩继标 1吴喜龙 1赵雨 1李勇 1陈明军 1马王蕊1
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作者信息

  • 1. 贵研资源(易门)有限公司,云南 玉溪 651100
  • 2. 贵研资源(易门)有限公司,云南 玉溪 651100;昆明贵金属研究所,昆明 650016
  • 折叠

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%.

Abstract

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.

关键词

二次资源/铁合金溶解液//萃取/反萃

Key words

secondary resources/ferroalloy solution/palladium/extraction/reverse extraction

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基金项目

国家重点研发计划(2023YFC2908005)

出版年

2024
贵金属
中国有色金属学会 昆明贵金属研究所

贵金属

CSTPCD北大核心
影响因子:1.261
ISSN:1004-0676
参考文献量6
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