Published January 1983 | Version v1
Journal article Metadata-only

Sorption of thorium from aqueous solutions by alkylammonium salts of ISO- and heteropolyacids of transition metals. I. Effect of pH on the extraction of thorium by alkyltrimethylammonium molybdates

Creators

Description

The pH dependence of the extraction of thorium from aqueous solutions by sorption on alkyltrimethylammonium molybdates was investigated. It was found that under optimal thorium concentration conditions molybdenum is precipitated in the form of a tetramolybdate Mo4O132-. Thorium forms complexes with precipitates of molybbdenum isopolyacidic salts. In the complex-formation reactions thorium is in the 4+ oxidation state. With a decrease in the molybdenum concentration, and on passing from sulfuric to hydrochloric acid media, the maximum thorium extraction is shifted towards lower pH values. The formation of thorium complexes with molybdenum oxoanions is confirmed by IR spectroscopic studies

Additional details

Publishing Information

Journal Title
Sov. Radiochem. (Engl. Transl.)
Journal Volume
25
Journal Issue
1
Series
Sov. Radiochem. (Engl. Transl.).
Journal Page Range
6-9

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
16026280
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ADSORPTION; AMMONIUM COMPOUNDS; AQUEOUS SOLUTIONS; EXPERIMENTAL DATA; MOLYBDATES; PH VALUE; SEPARATION PROCESSES; THORIUM; THORIUM COMPLEXES; VALENCE
Descriptors DEC
ACTINIDE COMPLEXES; ACTINIDES; COMPLEXES; DATA; DISPERSIONS; ELEMENTS; HOMOGENEOUS MIXTURES; INFORMATION; METALS; MIXTURES; MOLYBDENUM COMPOUNDS; NUMERICAL DATA; OXYGEN COMPOUNDS; SOLUTIONS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
Translation from Radiokhimiya (USSR); 25: No. 1, 8-12(Jan-Feb 1983).