ISSN:
1573-8205
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
,
Physics
Notes:
Abstract The degree of oxidation of the components of the ore material is of decisive importance in the extraction of uranium. Since the solution of uranium is composed of various chemical processes and complicated by the presence of impurities in the ores, it is necessary to study the rules of uranium oxidation and the effect of various compounds which dissolve during the leaching of uranium ores. In the present work we present the results of an investigation of the oxidation and solution of uranouranic oxide in acid media and the effect of ferrous compounds on it. A comparison of the oxidizing power of various oxidants with respect to uranium is given for the first time. It was shown that the oxidation of tetravelent uranium is not determined unequivocally by the normal oxidation-reduction potential. The results obtained show that the reasons for incomplete extraction of uranium by a mixture of nitric and sulfuric acids at low concentrations when considerable amounts of iron ions are present in the solutions are associated with the formation of complexes between Fe2+, SO 4 2− , and NO 3 − ions.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01483424
