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Title: Separation of Rhenium (VII) and Vanadium (V) from Hydrochloric Acid Solutions by Solvent Extraction
Authors: Nguyễn, Thị Hồng
Trương, Hoài Thanh
Lee, Man Seung
Keywords: Separation
Tributyl phospate
Solvent extraction
Issue Date: 2017
Series/Report no.: Korean J. Met. Mater.;55 .- p.724-731
Abstract: The separation of Re(VII) and V(V) by solvent extraction with TBP was investigated by varying the HCl, metal and chloride ion concentrations. Re(VII) was selectively extracted over V(V) from the HCl solution. The highest separation between Re(VII) and V(V) occurred at a concentration of 2.0 M HCl. The extraction reaction of Re(VII) by TBP was verified using the slope analysis method. Changing the concentration ratio of the two metals and the chloride ion concentration had little effect on the extraction of V(V). Re(VII) could be completely stripped from the loaded TBP when the pH of the stripping solution was higher than 3.0. The obtained results can be utilized to develop a process for separating Re(VII) and V(V) from HCl solutions.
URI: http://localhost:8080//jspui/handle/123456789/4968
Appears in Collections:Tạp chí quốc tế

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