Extraction of protactinium from mineral acid-alcohol media.

Nonaqueous Solvent Extraction for Enhanced Metal Separations: Concept, Systems, and Mechanisms

An extraction study was performed on tracer concentrations of cadmium halides in absence and presence of sulphuric acid. Inert solvents, nitrobenzene, a long chain amine (Amberlite LA-2) and organophosphorus solvents (TBP and HDEHP) have been investigated. The comparative stability of cadmium chloride and bromide TBP solvates were determined. The presence of sulphuric acid was found to enhance considerably the extraction of cadmium halides by nitrobenzene, Amberlite LA-2 and TBP. The mechanism of extraction has been discussed in light of the obtained results.

Solvent extraction studies on cadmium: I. Extraction and separation of microamounts of cadmium halides in absence and presence of sulphuric acid

On the extraction of acids and neptunium from alcoholic and acetonic solutions

An extraction study was performed on various concentrations of cadmium, zinc and cobalt halides in the presence of sulphuric acid. A long chain amine (Amberlite LA-2) and an organophosphorus solvent (TBP) have been investigated. In most cases the value of the distribution ratio decreases with the increase of metal concentration in the aqueous phase. The various possibilities of chemical and radiochemical separations of cadmium from accompanying metal species are reported.

H. Khalifa

Papers

Extraction of certain elements from aqueous methanol, ethanol and acetone by tridodecylamine and tributyl phosphate.

Effect of the nature of organic solvents on their interaction with metal halides—II. An extraction study on tetravakent selenium

Applications involving the iodide ion—X determination of copper and analysis of cation mixtures and alloys