Advanced search
Publication Cover
Separation Science and Technology Volume 43, 2008 - Issue 9-10
Submit an article Journal homepage
843
Views
44
CrossRef citations to date
0
Altmetric
Original Articles

Speciation of Molybdenum (VI) In Aqueous and Organic Phases of Selected Extraction Systems

Peter Tkac Radiation Center, Oregon State University, Corvallis, OR, USACorrespondence[email protected]
&
Alena Paulenova Radiation Center, Oregon State University, Corvallis, OR, USA
Pages 2641-2657 | Received 25 Oct 2007, Accepted 29 Mar 2008, Published online: 06 Aug 2008
 
Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days

Abstract

The extraction study of molybdenum (VI) by 30% tri-n-butyl phosphate in n-dodecane and 0.2 M octyl (phenyl)-N,N-di-isobutylcarbamoylmethylphosphine oxide in 30% tri-n-butyl phosphate extraction systems was performed from aqueous solution containing HCl, HNO3 and acetohydroxamic acid. Depending on extraction conditions, acetohydroxamic acid can significantly affect the speciation of molybdenum and can increase or decrease its distribution ratio. Our investigation confirmed the strong ability of the acetohydroxamic acid to form complexes with Mo even in highly acidic solutions. UV absorption spectra confirmed that a fraction of the Mo(VI)-AHA species can be present in the organic phase after extraction.

ACKNOWLEDGEMENTS

This work was funded by the U.S. DOE University Program U-NERI 05–062.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

Related Research Data

Preparation of 93Mo solution using proton irradiated Nb
Source: Springer Science and Business Media LLC
The extraction of molybdenum(VI) by tri-n-butyl phosphate
Source: Elsevier BV
Molybdenum species in aqueous solution — A brief summary
Source: Elsevier BV
Carbon-13, oxygen-17 and molybdenum-95 nuclear magnetic resonance studies of oxomolybdenum(VI) complexes
Source: American Chemical Society (ACS)
Recycling of isotopically modified molybdenum from irradiated CerMet nuclear fuel: part 1—concept design and assessment
Source: Springer Science and Business Media LLC
THE TRUEX PROCESS - A PROCESS FOR THE EXTRACTION OF THE TKANSURANIC ELEMENTS EROM NITRIC AC In WASTES UTILIZING MODIFIED PUREX SOLVENT*
Source: Informa UK Limited
Equilibria and UV spectra of mono- and polynuclear molybdenum(VI) species
Source: American Chemical Society (ACS)
Reaction stoichiometry for coextraction of technetium(VII) with uranium(VI) by CMPO
Source: Springer Science and Business Media LLC
Molybdenum(VI) equilibria at high perchloric acid concentration
Source: Elsevier BV
Thermodynamics of extraction of MoO42− from aqueous sulfuric acid media with TBP dissolved in kerosene
Source: Elsevier BV
Molybdenum(VI) complexes from diols and aminoalchols: the occurrence of MoO2, Mo2O3, and Mo2O5 core structures
Source: Royal Society of Chemistry (RSC)
Protonation Equilibria of Mononuclear Vanadate: Thermodynamic Evidence for the Expansion of the Coordination Number in VO2+
Source: American Chemical Society (ACS)
Extraction behavior of Mo and W from H 2 SO 4 and HF/HCl solutions into toluene with Aliquat336: sulfate and fluoride complex formation of Mo and W towards chemical studies of seaborgium (Sg)
Source: Springer Science and Business Media LLC
Liquid-liquid extraction of molybdenum(VI) from aqueous acid solutions by TBP and TOPO
Source: Elsevier BV
Interaction between Mo(VI) and siderophore models in aqueous solution
Source: Elsevier BV
Spectroscopic Study of the Uranyl Acetohydroxamate Adduct with Tributyl Phosphate
Source: SAGE Publications
Complexation of uranium(VI) with acetohydroxamic acid
Source: Springer Science and Business Media LLC
Radiochemical solvent extraction of molybdenum/VI/ using99Mo tracer
Source: Springer Science and Business Media LLC
Investigation of Mo(VI) monomer-dimer equilibrium in highly acidic solutions by UV absorbance spectroscopy using refined numerical processing
Source: HAL CCSD
Extraction of europium and americium by a mixture of CMPO and dicarbollide
Source: Springer Science and Business Media LLC
EXTRACTION OF Mo(VI) FROM NITRIC ACID MEDIUM BY DI(OCTYL-PHENYL) PHOSPHORIC ACID
Source: Informa UK Limited
Solvent Extraction Behavior of Plutonium (IV) Ions in the Presence of Simple Hydroxamic Acids
Source: Informa UK Limited
Extraction of palladium from nitric acid solutions by octyl(phenyl)-N,N-diisobutylcarbamoyl- methylphosphine oxide
Source: Springer Science and Business Media LLC
Behavior of Molybdenum (VI) in {DMDOHEMA–HDEHP/nitric acid} Liquid–Liquid Extraction Systems
Source: HAL CCSD
Species of Molybdenum(VI) in Hydrochloric Acid1
Source: American Chemical Society (ACS)
Mononuclear, polynuclear, and cluster complexes of molybdenum and their reactions as models of biochemical systems and processes
Source: Pleiades Publishing Ltd
Rapid simultaneous recovery and purification of calcium and molybdenum from calcium molybdate-based crystal waste
Source: Springer Science and Business Media LLC
The Coordination and Bioinorganic Chemistry of Molybdenum
Source: John Wiley & Sons, Inc.

Linking provided by 

Related research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.