Journal article
Intensified solvent extraction and separation of cobalt from Ni-rich leaching solution in impinging stream-rotating packed bed contactor
Jun Chang, Fukang Jia, Kathryn A Mumford, Xiaohong Yang, Zinan Xie
GEOSYSTEM ENGINEERING | TAYLOR & FRANCIS LTD | Published : 2020
Abstract
This work describes the separation of Ni and Co from a real feed solution in chloride media with high Ni content. The extractant used was P507 (2-ethylhexyl phosphoric acid-2-ethylhexyl ester) in a laboratory scale Impinging Stream–Rotating Packed Bed (IS-RPB) contactor. Key variables including feed solution pH, extractant concentration, saponification degree, high gravity level and total volumetric flow rate of fluids amongst other variables were examined. A McCabe–Thiele diagram of the extraction stage predicted that at a total volumetric flow rate of 90 L/h, feed solution pH of 5, saponified P507 concentration of 25% and high gravity of 83, almost 99% of cobalt, would be extracted within ..
View full abstractGrants
Awarded by National Natural Science Foundation of China
Awarded by Scientific Elitists Supporting Project of Department of Education of Guizhou Province
Awarded by Joint Fund Project of Science and Technology Department of Guizhou Province
Awarded by Project of Tongren Science and Technology Bureau
Awarded by Research Fund for the Doctoral Program of Tongren University
Awarded by Provincial Key Disciplines of Chemical Engineering and Technology in Guizhou Province
Awarded by CSC scholarship
Funding Acknowledgements
This work was supported by the National Natural Science Foundation of China [grant number 51804220], [grant number 51864042]; Scientific Elitists Supporting Project of Department of Education of Guizhou Province [grant number KY[2017] 090]; The Joint Fund Project of Science and Technology Department of Guizhou Province [grant number LH[2017] 7312]; the Project of Tongren Science and Technology Bureau [grant number [2016]18-3]; the Research Fund for the Doctoral Program of Tongren University [grant number trxyDH1620]; Provincial Key Disciplines of Chemical Engineering and Technology in Guizhou Province [grant number ZDXK[2017] 8]; and CSC scholarship [grant number 201708525070].