Results 181 to 190 of about 6,655 (229)
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OSCILLATORY EXTRACTION OF URANIUM
Solvent Extraction and Ion Exchange, 1998The kinetics of U and Ce extraction by tri-n-butyl-phosphate (TBP) and the redox potential behavior in the aqueous phase have been investigated in an oscillatory extraction system. The extraction has been followed continuously by UV-visible spectroscopy, potentiometry, and radioactive counting methods.
Mikhail A. Afonin +2 more
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A novel strategy for efficient uranium extraction and energy storage: Uranium extraction cell
Separation and Purification TechnologyChen Xu
exaly +2 more sources
Spectrophotometric determination of uranium in process streams of a uranium extraction plant
Talanta, 1997This paper deals with the development and standardization of procedures for the determination of uranium on a routine basis in various process streams of a uranium extraction plant, covering a wide range of concentrations from 350 g 1(-1) down to 5 mg 1(-1) using only a spectrophotometric technique.
B N, Murty +4 more
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Extraction chromatography of uranium with dioctyl sulphoxide
Talanta, 1970Uranium(VI) is quantitatively extracted from aqueous perchlorate media into dioctyl sulphoxide in 1,2-dichloroethane. The extracted species contains four sulphoxides for each uranium. Most other metal ions are not appreciably extracted. On columns containing a solid support impregnated with dioctyl sulphoxide in 1,2-dichloroethane, uranium(VI) may be ...
J S, Fritz, D C, Kennedy
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Carbon materials for extraction of uranium from seawater
Chemosphere, 2021With the rapid growth of population and industrialization, the energy crisis and environmental pollution as two main difficulties urgently need to be solved nowadays. The development and utilization of nuclear energy is of great significance for solving energy support, national security and environmental protection.
Han, Guo +5 more
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On microfluidic solvent extraction of uranium
Chemical Engineering and Processing - Process Intensification, 2018Abstract This experimental study is focused on several aspects of microfluidic solvent extraction of uranium in setups comprising of microbore tube(s) connected to microfluidic junction(s). Extraction experiments are carried out using simulated lean aqueous phase having 550 ppm uranium in 1 M HNO3 as the feed.
Mayur Darekar +5 more
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Bacteria in uranium extraction
Physics Bulletin, 1977Forecasts of uranium demand up to the end of the century need to be revised constantly because of the uncertainty at present over the rate of development of nuclear power. But even the requirements of nuclear power stations which have already been built or are under construction are going to make heavy demands on the uranium producing industry.
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Co-extraction of uranium and thorium
JOM, 1972The advantages of a complete solvent extraction route for the recovery of uranium and thorium.
G. M. Ritcey, B. H. Lucas
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Extraction of uranium from solid waste containing uranium and fluorine
Minerals Engineering, 2014Abstract A significant amount of waste residue and adsorbent containing uranium generated by uranium refining and conversion R&D activities has been stored at the Ningyo-toge Environmental Engineering Center of the Japan Atomic Energy Agency. The treatment of these materials is one of the most important tasks in the decommissioning of the plant ...
Yusuke Ohashi +2 more
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Kinetics of Uranium Extraction from Uranium Tailings by Oxidative Leaching
JOM, 2016Extraction of uranium from uranium tailings by oxidative leaching with hydrogen peroxide (H2O2) was studied. The effects of various extraction factors were investigated to optimize the dissolution conditions, as well as to determine the leaching kinetic parameters.
Biao Zhang +3 more
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