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有色金属工程:2020,(2):41-45
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红土镍矿浸出液中钴、锰、铁的协同萃取
明键伟1, 卢苏军2, 宛顺磊1, 张峰瑞1, 郭勇3, 卢晓锋3, 李亦婧3
(1.金川集团股份有限公司;2.镍钴资源综合利用国家重点实验室;3.中国科学院兰州化学物理研究所)
Cooperative Extraction of Cobalt、Manganese, and Iron from Laterite nickel Ore
MING Jian-wei1, LU Su-jun2,1,3, WAN Shun-lei1, ZHANG Feng-rui1, GUO Yong3, LU Xiao-feng3, LI Yi-jing3
(1.Jinchuan Group CoLtd;2.StateSKeySLaboratorySofSNickelSandSCobaltSResourcesSSComprehensiveSUtilization;3.Lanzhou Institute of Chemical and Physics Chinese Academy of Sciences)
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投稿时间:2019-06-24    修订日期:2019-08-30
中文摘要: 将P204与Cyanex272构成混合萃取剂用于萃取红土镍矿浸出液中的Co、Mn、Fe。系统研究了协同萃取的最优萃取剂比例、水相pH值、萃取平衡时间、萃取温度及反萃的最合适酸浓度。结果表明,有机相比例P204?Cyanex272?TBP?磺化煤油=5?15?5?75,待处理溶液pH值为4.5、萃取温度60 ℃、平衡时间8 min为最佳萃取条件;反萃工序中,采用50 g/L的H2SO4溶液反萃钴,110 g/L的H2SO4溶液反萃锰,7 mol/L的HCl溶液反萃铁可获得较好的反萃效果。
中文关键词: 溶剂萃取  协同萃取  红土镍矿  硫酸镍
Abstract:A mixed extractant composed of P204 and Cyanex272 was used to extract Co, Mn, and Fe in laterite nickel leaching solution. The optimal extraction agent ratio, pH value of aqueous phase, extraction equilibration time, extraction temperature, and the most suitable acid concentration for back extraction were studied systematically. The results show that the optimum synergistic extraction is obtained under the conditions : the volume ratio of P204?Cyanex272?TBP?sulfonated kerosene is 5?15?5?75, pH value of the solution to be treated is 4.5, the extraction temperature is 60 ℃, and extraction time is 8 min. In the process of stripping, Co can be stripped effectively by sulfuric acid at a concentration of 50 g/L, Mn can be stripped effectively by sulfuric acid at a concentration of 110 g/L, and Fe can be stripped effectively by HCl at a concentration of 7 mol/L.
文章编号:     中图分类号:TF 815    文献标志码:
基金项目:镍钴资源综合利用国家重点实验室项目(2019620001000141)
引用文本:
明键伟,卢苏军,宛顺磊,张峰瑞,郭勇,卢晓锋,李亦婧.红土镍矿浸出液中钴、锰、铁的协同萃取[J].有色金属工程,2020,(2):41-45.

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