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投稿时间：2013-09-21 修订日期：2013-09-23
投稿时间：2013-09-21 修订日期：2013-09-23
中文摘要: 本文针对高铁闪锌矿湿法炼锌过程中产出的还原浸出液提出了预还原Fe3 , P204直接萃取回收铟的工艺。还原浸出液中铁达到50g/L以上,Fe3 占到10%左右,经预还原后Fe3 降低到0.5g/L左右,还原过后的浸出液进行直接萃取分离回收铟。考察了原液pH、相比、有机相浓度、搅拌转速等条件对整个萃取过程的影响。铟的萃取率主要受P204浓度和溶液pH的影响,萃取过程平衡时间为1-2分钟。三级逆流萃取综合验证实验表明铟的萃取过程稳定,萃取率在98%以上,铟铁分离效果良好,分离系数达到10000以上,整个过程无乳化现象产生。直接萃取法回收铟具有操作简单、流程短、直收率高等优势。
Abstract:The technology of prereduction Fe3 -P204 extraction recovery of indium directly have been proposed to dispose the high iron sphalerite reduction lixivium in zinc hydrometallurgy process. The concentration of Fe reached more than 50g/L and the concentration of Fe3 account for about 10% in the reduction leaching. The concentration of Fe3 reached to about 0.5g/L after prereduction and the reduction lixivium is used to direct extraction. The influence of pH, phase ratio, organic phase concentration, stirring speed and other conditions for the extraction process have been investigated. Indium extraction rate is mainly influenced by P204 concentration and solution pH and extraction balance time is 1 to 2 minutes. Three-stage countercurrent extraction comprehensive validation experiments show that the indium extraction process stability, extraction rate is over 98% and indium iron separating effect is good and the separation factor is above 10000 and no emulsification phenomenon occurs throughout the process. Direct extraction method has simple operation, short process, high recovery efficiency advantages.
keywords: High Iron Sphalerite directly extract indium iron
文章编号：20130921002 中图分类号： 文献标志码：
基金项目:国家自然科学基金资助( 51304093); 昆明理工大学自然科学研究基金资助项目(14118647)
| 作者 | 单位 | |
| 赵多强 | 昆明理工大学 | zhdq11261987@163.com |
| 魏昶* | 昆明理工大学 | weichang502@sina.cn |
| 李旻廷 | 昆明理工大学 | |
| 陈淑梅 | 昆明理工大学 | |
| 张帆 | 昆明理工大学 |
引用文本：
赵多强,魏昶,李旻廷,陈淑梅,张帆.高铁闪锌矿还原浸出液直接萃取法分离回收铟[J].矿冶,2015,24(1):39~43.
赵多强,魏昶,李旻廷,陈淑梅,张帆.高铁闪锌矿还原浸出液直接萃取法分离回收铟[J].矿冶,2015,24(1):39~43.
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