Separation of Nickel from Manganese， Magnesium and Calcium Using Synergistic Solvent Extraction System of P204/4PC

doi:10.12068/j.issn.1005-3026.2018.10.012

Abstract

Abstract: The separation of nickel from manganese， magnesium and calcium by solvent extraction with new synergistic system was studied. The effects of organic phase ratio， equilibrium pH value and equilibrium time on extraction separation were investigated， and nickel extraction and stripping isotherms were plotted. The results showed that the organic phase composed of 1.25mol/L 4PC(L)+0.25mol/L P204(HA)was used after 5 levels of countercurrent extraction， the extraction rate of nickel reached 98.7%， and the extraction rate of other impurity metals were nearly below 5%. The loaded organic phase was subjected to a three-stage countercurrent stripping， the stripping rate of nickel reached 98.2%， and the content of nickel in the organic phase was less than 0.1g/L.

Key words: P204, 4PC, nickel, manganese, magnesium, calcium, synergistic solvent extraction

CLC Number:

TF804.2

ZENG Li， SUN Zhen， GUAN Wen-juan， ZHANG Gui-qing. Separation of Nickel from Manganese， Magnesium and Calcium Using Synergistic Solvent Extraction System of P204/4PC[J]. Journal of Northeastern University Natural Science, 2018, 39(10): 1428-1432.

References

[1]Watling H R.The bioleaching of nickel-copper sulfides［J］. Hydrometallurgy，2008，91(1/2/3/4):70-88.
[2]刘大星.从红土矿中回收镍、钴技术的进展［J］.有色金属(冶炼部分)，2002(3):6-12.(Liu Da-xing.Recent development in nickel and cobalt recovery technologies from laterite［J］.Nonferrous Metals(Smelting Section)，2002(3):6-12.)
[3]ShenY F，Xue W Y，Niu W Y.Recovery of Co(II)and Ni(II)from hydrochloric acid solution of alloy scrap［J］.Transactions of Nonferrous Metals Society of China，2008，18(5):1262-1268.
[4]肖超，肖连生.钴、镍萃取分离原理与方法［J］.湿法冶金，2010，29(4):225-228.(Xiao Chao，Xiao Lian-sheng.Theory of solvent extraction separation of cobalt and nickel［J］.Hydrometallurgy of China，2010，29(4):225-228.)
[5]Preston J S.A-substituted oxime extractants-IIextraction of Cu(II)，Ni(II)，Co(II)and Fe(II)by aliphatic a-hydroxyimino ketones and a-dioximes［J］.Journal of Inorganic and Nuclear Chemistry，1975，37(5):1235-1242.
[6]Flett D S，West D W.Extraction of metal ions by LIX 63/carboxylic acid mixtures［C］// International Solvent Extraction Conference.Hague，1971:214-223.
[7]Preston J S.Solvent extraction of base metals by mixtures of organophosphorus acids and non-chelating oximes［J］.Hydrometallurgy，1983，10(2):187-204.
[8]Redden L D，Groves R D.The extraction of nickel with aliphatic oximes［J］.Separation Science and Technology，1993，28(1/2/3):201-205.
[9]Preston J S，du Preez A C.Synergistic effects in the solvent extraction of some divalent metals by mixtures of versatic 10 acid and pyridinecarboxylate esters［J］.Journal of Chemical Technology and Biotechnology，1994，61:159-165.
[10]Preston J S，du Preez A C.The solvent extraction of nickel from acidic solutions using synergistic mixtures containing pyridinecarboxylate esters.Part 1:systems based on organophosphorus acids［J］.Journal of Chemical Technology and Biotechnology，1996，66:86-94.
[11]Preston J S，du Preez A C.Separation on nickel and calcium by solvent extraction using mixtures of carboxylic acids and alkylpyridines［J］.Hydrometallurgy，2000，58(3):239-250.
[12]Du Preez A C，Preston J S.Separation of nickel and cobalt from calcium，magnesium and manganese by solvent extraction with synergistic mixtures of carboxylic acids［J］.Journal of South African Institute of Mining and Metallurgy，2004，104(6):333-338.
[13]Cheng C Y.Solvent extraction of nickel and cobalt with synergistic systems consisting of carboxylic acid and aliphatic hydroxyoxime［J］.Hydrometallurgy，2006，84(1/2):109-117.
[14]Cheng C Y，Keith R B，Zhang W S，et al.Recovery of nickel，cobalt，copper and zinc in sulphate and chloride solutions using synergistic solvent extraction［J］.Chinese Journal of Chemical Engineering，2016，24(2):237-248.
[15]黄小卫，李建宁，张永奇，等.P204-P507在酸性硫酸盐溶液中对Nd³⁺和Sm³⁺的协同萃取［J］.中国有色金属学报，2008，18(2):366-371.(Huang Xiao-wei，Li Jian-ning，Zhang Yong-qi，et al.Synergistic extraction of Nd³⁺ and Sm³⁺ from P204-P207 in sulfuric acid medium［J］.The Chinese Journal of Nonferrous Metals，2008，18(2):366-371.)