Journal article
Impure ions removal from multicomponent leach solution of nickel sulfide concentrates by solvent extraction in impinging stream rotating packed bed
J Chang, F Jia, C Srinivasakannan, KA Mumford, X Yang
Chemical Engineering and Processing Process Intensification | ELSEVIER SCIENCE SA | Published : 2019
Abstract
In order to separate zinc, manganese and copper from a mixed chloride solution containing nickel and cobalt, solvent extraction with Di-2-ethylhexylphosphoric acid (D2EHPA) was investigated using an Impinging Stream–Rotating Packed Bed (IS–RPB) contactor in laboratory scale. The effects of operating parameters, such as equilibrium pH, ratio of aqueous to organic flow rates, rotation speed and concentration of D2EHPA amongst other variables were examined. A McCabe–Thiele diagram of the extraction stage predicted that at a flow rate ratio of 1:1, equilibrium pH of 3.5, D2EHPA concentration of 20% (v/v) and rotation speed of 900 rpm, 99.9% of zinc, manganese and copper would be removed within t..
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Awarded by National Natural Science Foundation of China
Funding Acknowledgements
We are thankful for the financial support provided by the National Natural Science Foundation of China (No. 51804220 and 51864042), the Scientific Elitists Supporting Project of Department of Education of Guizhou Province (No. KY[2017]090), the Joint Fund Project of Science and technology department of Guizhou province (No. LH [2017]7312), the Project of Tongren Science and Technology Bureau (No. [2016]183), the Research Fund for the Doctoral Program of Tongren University (No. trxyDH1620), and Provincial Key Disciplines of Chemical Engineering and Technology in Guizhou Province (No. ZDXK[2017]8).