Co、Ni离子分离研究Separation of Ni(Ⅱ) and Co(Ⅱ) Ions
诸爱士,成忠,沈芬芳,徐亮
摘要(Abstract)：
采用电渗析与萃取耦合的集成方法,实现混合溶液体系中Co2+、Ni2+分离。在分离条件上,通过选取和设置萃取剂皂化率、原料的质量配比、原料同萃取剂的摩尔配比、加酸方式、酸用量、循环处理、萃取剂是否回用等因素及其不同水平,以考察它们对离子分离程度的影响。实验结果:萃取剂皂化率60%、原料中NiCl2·6H2O与CoCl2·6H2O的质量配比1:2、原料同萃取剂的摩尔配比1:1.7、一次性加酸、酸用量取理论用量的1.3倍为优取的分离工艺条件。另外,离子分离过程可采取料液循环、萃取剂再皂化后回用的多级操作;电流效率达80%以上。由此得到,电渗析与萃取耦合的技术可分离Co2+和Ni2+。
关键词(KeyWords)： 钴;镍;电渗析;萃取;方法集成;金属离子分离
基金项目(Foundation): 浙江省自然科学基金项目(Y406053)
作者(Author): 诸爱士,成忠,沈芬芳,徐亮
参考文献(References)：
- [1]LIU San-ping(刘三平),WANG Hai-bei(王海北),JIANG Kai-xi(蒋开喜)et al.Cobalt separation technologies and their application to scrap treatment(钴提取分离技术分析与应用)[J].Nonferrous Metals(有色金属),2004,56(2):73-76.
- [2]BAO Fu-yi(包福毅),ZHU Da-he(朱大和),FANG Jun(方军)et al.Separation and recovery of cobalt from chloridizing leachate containing nickel and cobalt(氯化浸出镍溶液中钴的分离和回收)[J].Nonferrous Metals(有色金属),1995,47(10):57-61.
- [3]Majdan M,Mierzwa J,Sadowski P.On the separation of Co and Ni from chloride media with Aliquat336-TBP and Aliquat336-TOPO[J].Monatshefte fur Chemie,1997,128:113-121.
- [4]Barroso M J,San Andres M R,Vera S.Separation and determination of Ni(II),Co(II)and Cu(II)by RP-HPLC with hexadecyltrimethylammonium bromide/n-propanol mobile phases[J].Chromatographia,2000,51(5/6):277-282.
- [5]Kabil M A,Ghazy S E,El-Asmy A A et al.Simultaneous separation and microdetermination of cobalt(II),nickel(II)and copper(II)[J].Fresenius J Anal Chem,1997,357:401-404.
- [6]DENG Fan-zheng(邓凡政),SHI Ying(石影),ZHANG Guang-jun(张广军).Study on extraction separation of Co(II),Ni(II)and Mo(VI)in PEG-Na2SO4-KSCN system(聚乙二醇-硫酸钠-硫氰酸钾体系中Co(II)、Ni(II)、Mo(VI)的萃取分离研究)[J].Chinese Journal of Rare Metals(稀有金属),1998,22(3):188-190.
- [7]WANG Rong-geng(王荣耕),LI Xue-ping(李学平),ZHAI Xue-liang(翟学良).The technical progress in recovery of Ni and Co by ion-exchange resin(离子交换树脂回收钴镍技术进展)[J].Inorganic Chemicals Industry(无机盐工业),2005,37(11):11-13.
- [8]DU Zhong-lin(杜重麟),ZHANG Jin-zhu(张锦柱),YANG Bao-min(杨保民)et al.Nitroso-R-salt-Tween80-salt-liquid-solid extraction separation of trace Co(II)and Ni(II)(亚硝基R盐-吐温80-盐水体系萃取分离微量钴镍)[J].Journal of Kunming University of Science and Technology(Science and Technology)(昆明理工大学学报(理工版)),2005,30(2):119-121.
- [9]XING Jun(邢军).A new technology of abstracting cobalt from waste material by oxidation-reduction(氧化还原法从废料中提钴新工艺)[J].Liaoning Chemical Industry(辽宁化工),1999,28(1):49-50.
- [10]MO Jian-xiong(莫剑雄),ZHU Ai-shi(诸爱士).Electo-reverse extraction for cobalt and nickel ions(Co-Ni离子的电反萃实验)[J].Technology of Water Treatment(水处理技术),1999,25(6):325-329.
- [11]CHEN Yao-zong(陈耀宗),WU Bing-qian(吴炳乾).Study on extracting Co and Ni with P507in chloride-salt system(氯盐体系P507萃取分离钴镍的研究)[J].Jiangxi Metallurgy(江西冶金),1996,16(3):24-28.
- [12]LIU Yuan-shuai(刘元帅),SHEN Jin-yu(沈金玉),XING Xin-hui(邢新会)et al.Application of electrodialysis desalination to the separation of glutamine from fermentation broth(电渗析脱盐在提取发酵液中谷氨酰胺的应用研究)[J].J Chem Eng of Chinese Univ(高校化学工程学报),2004,18(2):174-178.
- [13]ZHANG Guo-liang(张国亮),MENG Qin(孟琴),TANG Xiao(汤晓)et al.Oily wastewater desalted by electrodialysis for rhamnolipids production with Pseudomonas aeruginosa(利用油田废水电渗析脱盐液发酵制备鼠李糖脂的研究)[J].J Chem Eng of Chinese Univ(高校化学工程学报),2005,19(5):664-669.