Journal ArticleDOI
Liquid/liquid extraction separation of hafnium with amberlite La-1 from zirconium and other elements in citric acid solutions
C.P. Vibhute,S. M. Khopkar +1 more
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TLDR
Hafnium can be separated from binary and multicomponent mixtures by selective extraction and back-extraction, which is suitable for determining hafnium in zircon as mentioned in this paper.About:
This article is published in Analytica Chimica Acta.The article was published on 1987-01-01. It has received 10 citations till now. The article focuses on the topics: Amberlite & Xylenol orange.read more
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Recent Advances in Ultraviolet-Visible Spectrophotometry
TL;DR: The application of spectrophotometric detection in hydrodynamic systems is surveyed in this paper, where new types of color systems employing macrocyclic compounds, porphyrines, surfactants, and basic dyes are evaluated.
Journal ArticleDOI
Solvent Extraction for the Separation of Zr and Hf from Aqueous Solutions
Raju Banda,Man Seung Lee +1 more
TL;DR: In this article, a review mainly focused on the recent extraction and separation studies of Zr and Hf from various acidic aqueous solutions using liquid-liquid extraction is presented.
Journal ArticleDOI
Zirconium and Hafnium Separation, Part 1. Liquid/Liquid Extraction in Hydrochloric Acid Aqueous Solution with Aliquat 336
TL;DR: In this paper, the extraction of zirconium and hafnium from aqueous HCl solutions by means of Aliquat 336 in organic diluents was systematically studied.
Journal ArticleDOI
Separation of Zr from Hf in Hydrochloric Acid Solution Using Amine-Based Extractants
TL;DR: A McCabe-Thiele diagram was constructed for the extraction of Zr with Alamine 336 in kerosene, and the tested batch simulation of counter-current extraction studies showed that the extractions of zirconium and hafnium impurities were 98.5% and 12.5%, respectively as mentioned in this paper.
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Separation of Zr from Hf in acidic chloride solutions by using TOPO and its mixture with other extractants
TL;DR: In this paper, a mixture of TOPO and amine was used for the mutual separation of Zr and Hf in hydrochloric acid media, and the results showed that the TOPO alone system was better for mutual separation than the mixture of amine and TOPO.
References
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Journal ArticleDOI
Long-Chain Amines. Versatile Acid Extractants
TL;DR: In this paper, a new anionic liquid-liquid extraction technique uses solutions of long-chain amines in chloroform to extract acids on complex metal acids from aqueous solutions.
Journal ArticleDOI
Solvent extraction of zirconium and hafnium
TL;DR: A review on the studies of solvent extraction of zirconium and hafnium, either individually or together from other associated elements, using various solvents has been presented as discussed by the authors.
Journal ArticleDOI
Co-extraction and separation of zirconium and hafnium by long-chain amines from sulphate media.
TL;DR: The extraction of Zr and Hf from sulphuric acid systems by solutions of Primene JMT (a long-chain primary amine) in kerosene, is described and a rapid improved method for HfZr separation is suggested.
Journal ArticleDOI
Solvent extraction separation of zirconium (IV) with amberlite LA-1 from citrate solutions
C. P. Vibhute,S. M. Khopkar +1 more
TL;DR: In this paper, the authors extracted zirconium from the organic phase with 2 M hydrochloric acid and was determined spectrophotometrically at 665 nm as its complex with arsenazo III.
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Solvent and reversed-phase extraction chromatographic separation of niobium, zirconium, and hafnium with aliquat 336
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N. R. Das,Susanta Lahiri +1 more