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2 edition of Separations by solvent extraction with tri-n-octylphosphine oxide found in the catalog.

Separations by solvent extraction with tri-n-octylphosphine oxide

White, J. C.

Separations by solvent extraction with tri-n-octylphosphine oxide

by White, J. C.

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Published by Subcommittee on Radiochemistry, National Academy of Sciences, National Research Council, Available from Office of Technical Services, Dept. of Commerce in Washington, D.C .
Written in English


Edition Notes

StatementJ.C. White and W.J. Ross.
SeriesNuclear science series, Nuclear science series (National Research Council (U.S.))
Classifications
LC ClassificationsMLCM 87/08037 (Q)
The Physical Object
Pagination56 p. :
Number of Pages56
ID Numbers
Open LibraryOL2492740M
LC Control Number87461958

Solvent Extraction in Radiochemical Separations Solvent Extraction in Radiochemical Separations Freiser, H; Morrison, G H By HENRY FREISER AND Department of Chemistry, University of Arizona, Tucson, Arizona GEORGE H. MORRISON Research Laboratories, Sylvania Electric Products, Inc., Bayside, New York The last several . Solvent extraction is the most effective and efficient method to recover and separate Ce from other light rare earth elements. After acid leaching of rare earth minerals, leaching solution was obtained, and cerium oxide of products of high purity was obtained by extraction and by: 1.

Multi-element actinide analysis is achieved by extracting the whole group, or part of it, in the tri-n-octylphosphine oxide-n-heptane-nitric acid-sodium nitrate system, stripping into ammonium carbonate solution and electrodeposition, followed by solid-state alpha spectrometry, with unusual actinide nuclides as yield by: TOPO (tri-n-octylphosphine oxide) as a carrier and a green solvent (sunflower oil) were used to provide high extraction efficiency of Cr(VI). All these double emulsions were characterized in droplet size distribution, zeta potential, visual inspection with a microscope, and stability.

PDF ( K) PDF-Plus ( K) Citing articles; Coadsorption of triphenylphosphine – triphenylphosphine oxide, triphenylphosphine – dodecyldiphenylphosphine oxide, and dodecyldiphenylphosphine oxide – tri(n)octylphosphine oxide from methanolic solutions on a polarized mercury electrodeAdriani Pappa-Louisi and, Panaghiotis NikitasCited by: 4. Jen, C., and Chen, M. SEPARATION OF THORIUM FROM MONAZITE BY A SOLVENT EXTRACTION y unknown/Code not available: N. p., Web.


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Separations by solvent extraction with tri-n-octylphosphine oxide by White, J. C. Download PDF EPUB FB2

The purity of the new sample was lower tham for previous batches, however, and the phase separations during extraction were slower. Tests with tri(n- octyl)phosphine oxide and 2-phenylvinyl(diociyl)phosphine oxide showed the latter to be the poorer extractant.

Suggested Citation:"Extraction Characteristics."National Research Council. Separations by Solvent Extraction With Tri-n-octylphosphine gton, DC: The National Academies Press. doi: / Get this from a library. Separations by solvent extraction with tri-n-octylphosphine oxide.

[J C White; W J Ross; U.S. Atomic Energy Commission.; National Research Council (U.S.). Committee on Nuclear Science. Subcommittee on Radiochemistry.]. Suggested Citation:"General Considerations."National Research Council. Separations by Solvent Extraction With Tri-n-octylphosphine gton, DC: The National Academies Press.

doi: / The use of paper treated with tri-n-octylphosphine oxide for the chromatographic separation of metal ions. Journal of Chromatography A7, DOI: /S(01) B. Martin, D.W. Ockenden, J.K. Foreman.

The solvent extraction of plutonium and americium by tri-n-octylphosphine oxide. Solvent extraction is one of the most effective analytical methods for the separation, purification, and removal of target metal ions (valuable metal ions, (II) using tri-n-octylphosphine oxide (TOPO) and dicyclohexanocrown-6 (DC18C6) in the presence of the.

Extraction of Trivalent Lanthanides and Americium by Tri-n-octylphosphine Oxide from Ammonium Thiocyanate Media March Solvent Extraction and Ion Exchange 29(2) The synergistic extraction of rare-earth metals by a β-diketone and an organophosphine oxide is described.

A combination of 2-thenoyltrifluoroacetone (HTTA) and tri-n-octyl phosphine oxide (TOPO) was found to be effective in synergistically extracting rare Cited by: Effect of alkaline metal salts on the solvent extraction of platinum from leached spent dehydrogenation catalysts (Pt/Al2O3) in aqua-regia by the Trioctylphosphine oxide (TOPO) has been investigated.

Due to the synergistic effect with the two extractants, Sc 3+ was effectively and selectively separated even from Fe 3+, the separation of which is difficult with HTTA alone.

The extraction mechanism was examined and it was revealed that Sc 3+ is extracted with three HTTA and one TOPO by: Solvent Extracting Studies of Tantalum Fluoride Complexes with N-Benzoylphenylhydroxylamine, Tri-n-octylphosphine Oxide and Methyl Isobutyl Ketone Using Computer Techniques.

Analytical Chemistry37 (8), DOI: /aca Johann. Korkisch and S. Solvent Extraction Separation of Titanium(IV) and Iron(III) from Acid Chloride Solutions by Trioctylphosphine Oxide X.H.

MAO1,2,* and D.J. LIU1 1Sichuan University, ChengduSichuan Province, P.R. China 2Panzhihua University, PanzhihuaSichuan Province, P.R. China *Corresponding author: E-mail: [email protected] Selective Extraction of Scandium from Transition Metals by Synergistic Extraction with 2-Thenoyltrifluoroacetone and Tri-n-octylphosphine Oxide.

There has been an increasing demand for scandium (Sc). However the supply is insufficient because the separation and recovery of Sc as a byproduct from ores is difficult. Uranium(VI) is separated by extraction from nitric acid medium into a molten mixture of tri-n-octylphosphine oxide and benzophenone at about 50°.

The organic phase solidifies on cooling and is separated and dissolved in ethanol. The uranium(VI) in this solution is then determined spectrophotometrically with 1-(2-pyridylazo) by: 9. Uranium can be determined in the usual types of dissolver solutions by extraction of uranium (VI) into a cyclohexane solution of tri-n-octylphosphine oxide (TOPO), back-extraction into an ammonium sulfate solution, and coulometric titration at controlled potential.

Optimum conditions were established for the extraction and back-extraction, and the overall perfomance of the Cited by: 6. Synergistic solvent extraction of Pu(IV) from nitric acid medium by mixtures of thenoyltrifluoroacetone (HTTA) and tri-n-octylphosphine oxide (TOPO) in benzene was investigated by a method developed for such species involved in the extraction were identified as Pu(NO 3) 4 2TOPO, Pu-(N0 3) 3 (TTA) 2TOPO, Pu(NO 3) 2 (TTA) 2 TOPO, Cited by: 9.

Trioctylphosphine oxide (TOPO) is an organophosphorus compound with the formula OP (C 8 H 17) 3. Frequently referred to as TOPO, this compound is used as an extraction or stabilizing agent. It is an air-stable white solid at room temperature.

Preparation and use. TOPO is usually prepared by oxidation of trioctylphosphine, which in turn is Boiling point: °C ( °F; K) at mmHg.

The demand for the recovery of valuable metals and the need to understand the impact of heavy metals in the environment on human and aquatic life has led to the development of new methods for the extraction, recovery, and analysis of metal ions.

With special emphasis on environmentally friendly approaches, efforts have been made to consider strategies that Author: Govind Sharma Shyam Sunder, Sandhya Adhikari, Ahmad Rohanifar, Abiral Poudel, Jon R. Kirchhoff. The unique physical and chemical properties of room-temperature ionic liquids (RTILs) have recently received increasing attention as solvent alternatives for possible application in the field of nuclear industry, particularly in liquid-liquid separations of radioactive nuclides.

We investigated solvent extraction of U(VI) from aqueous solutions into a Cited by: Solvent extraction of these ligands towards selected lanthanides and actinides was investigated under acidic condition.

Compared with acyclic monovalent analogs and classical extractant tri-n-octylphosphine oxide (TOPO), the remarkable efficiency and selectivity for thorium (IV) and uranyl. Thorium was extracted from a mixture of nitric acid and NaNO3 of M each at pH on a column of silica gel coated with TOPO.

Thorium was separated from alkalis, alkaline earths, chromium, iron, cobalt, nickel, zinc, cadmium, mercury, lead, trivalent rare earths, platinum group metals, chloride, phosphate and acetate in binary mixtures by selective extraction of Cited by: Tri-n-octylphosphine oxide is a solvent used in the extraction of metals, especially uranium, zirconium and hafnium.

It is also used as an auxiliary reagent in the solvent extraction of metals. It is also used to extract hydrogen bonding organic compounds.

(). Studies on the Separation and Recovery of Uranium from Phosphoric Acid Medium Using a Synergistic Mixture of (2-Ethylhexyl)phosphonic Acid Mono 2-Ethyl Hexyl Ester (PCA) and Tri-n-octylphosphine Oxide (TOPO) Separation Science and Technology: Vol.

45, No. 6, pp. Cited by: