Published August 2004
| Version v1
Journal article
Determination of uranium in ore with volumetry of H2SO4-TiCl3-NH4VO3
- 1. Nanhua Univ., Hengyang (China). School of Architecture, Resources and Environment Engineering
- 2. No.417 Team of Hunan Provincial Geology Exploration Bureau, Hengyang (China)
Description
The uranium ore sample is dissolved with H2SO4, HF and H2O2. Uranium (VI) is reduced to uranium (IV) by titanous. The excess titanous is oxidized with sodium nitrite and excess sodium nitrite is destroyed with urea. Uranium can be determined by ammonium vanadate volumetry in the medium of 6 mol/L sulfuric acid taking o-phenanthroline ferrous sulfate as indicators. The determination limit is 0.03%, the RSD is better than 3%, the recovery is 95-105%. The error is less than 2% compared with the standard sample of uranium ore
Additional details
Publishing Information
- Journal Title
- Uranium Mining and Metallurgy
- Journal Volume
- 23
- Journal Issue
- 3
- Journal Page Range
- p. 147-150
- ISSN
- 1000-8063
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 36029065
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ACCURACY; AMMONIUM COMPOUNDS; OXIDIZERS; REDOX REACTIONS; SENSITIVITY; SULFURIC ACID; TITANIUM COMPOUNDS; URANIUM; URANIUM ORES; VANADATES; VOLUMETRIC ANALYSIS
- Descriptors DEC
- ACTINIDES; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; ELEMENTS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; METALS; ORES; OXYGEN COMPOUNDS; QUANTITATIVE CHEMICAL ANALYSIS; SULFUR COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS