Separation of thorium from uranium ore

Kmak, Kelly N.; Shaughnessy, Dawn A.; Vujic, Jasmina

doi:10.1007/s10967-019-06980-1

Separation of thorium from uranium ore

Journal Article · Sat Dec 07 00:00:00 EST 2019 · Journal of Radioanalytical and Nuclear Chemistry

DOI:https://doi.org/10.1007/s10967-019-06980-1· OSTI ID:1826097

Kmak, Kelly N. ^[1]; Shaughnessy, Dawn A. ^[2]; Vujic, Jasmina ^[3]

Univ. of California, Berkeley, CA (United States); Lawrence Livermore National Laboratory
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Univ. of California, Berkeley, CA (United States)

Thorium-230 has many research applications, but there is not a commercial source of this isotope. However, since ²³⁰Th is part of the ²³⁸U decay chain, it can be separated from naturally occurring uranium. In this work, a novel procedure was developed to separate thorium from uranium ore, consisting of leaching, liquid–liquid extraction, precipitations and ion exchange chromatography. Here, the final product was 91.32 ± 0.77 mg of thorium with a purity of 99.5 ± 1.2 wt%. Of that, 7.65 ± 0.10 mg was ²³⁰Th and the remainder ²³²Th. The total yield of ²³⁰Th was 71.1 ± 5.4%. Ways to improve the yield by further processing the back-extraction solution are suggested.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Nuclear Science and Security Consortium; Univ. of California, Berkeley, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344; NA0003180

OSTI ID:: 1826097

Alternate ID(s):: OSTI ID: 1642355
OSTI ID: 22891891

Journal Information:: Journal of Radioanalytical and Nuclear Chemistry, Journal Name: Journal of Radioanalytical and Nuclear Chemistry Journal Issue: 2 Vol. 323; ISSN 0236-5731

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

References (21)

Removal of 230Th by solvent extraction from high grade uranium ore liquid tailings to arrest 226Ra production in the tailings Nirdosh, Inderjit The Canadian Journal of Chemical Engineering, Vol. 80, Issue 3 https://doi.org/10.1002/cjce.5450800325	journal	June 2002
Extraction of uranium (VI) and thorium from nitric acid solutions by tri-n-butyl phosphate Sato, Taichi Journal of Applied Chemistry, Vol. 15, Issue 11 https://doi.org/10.1002/jctb.5010151101	journal	November 1965
Complexes between tributyl phosphate and inorganic nitrates Healy, T. V.; Mckay, H. A. C. Recueil des Travaux Chimiques des Pays-Bas, Vol. 75, Issue 6 https://doi.org/10.1002/recl.19560750623	journal	January 1956
Anion-exchange separation and determination of thorium and uranium in Eskişehir-Beylikahir ore in Turkey Altaş, Y.; Tel, H.; Eral, M. Journal of Radioanalytical and Nuclear Chemistry, Vol. 241, Issue 3 https://doi.org/10.1007/BF02347224	journal	September 1999
A new concept for searching for time-reversal symmetry violation using Pa-229 ions trapped in optical crystals Singh, Jaideep Taggart Hyperfine Interactions, Vol. 240, Issue 1 https://doi.org/10.1007/s10751-019-1573-z	journal	March 2019
The mutual separation of thorium, protoactinium, and uranium by tributyl phosphate extraction from hydrochloric acid Peppard, D. F.; Mason, G. W.; Gergel, M. V. Journal of Inorganic and Nuclear Chemistry, Vol. 3, Issue 6 https://doi.org/10.1016/0022-1902(57)80044-X	journal	January 1957
The recovery of thorium-230 from uranium wastes Carswell, D. J.; Fletcher, J. M.; Clelland, D. W. Journal of Inorganic and Nuclear Chemistry, Vol. 5, Issue 2 https://doi.org/10.1016/0022-1902(57)80056-6	journal	January 1957
A new simple procedure for the recovery and purification of protactinium-231 Brown, D.; Whittaker, B. Journal of the Less Common Metals, Vol. 61, Issue 1 https://doi.org/10.1016/0022-5088(78)90155-8	journal	September 1978
Precise and rapid determination of trace amounts of uranium in inorganic samples by neutron activation and TBP extraction Steinnes, E. Analytica Chimica Acta, Vol. 76, Issue 2 https://doi.org/10.1016/S0003-2670(01)85420-9	journal	June 1975
Improvements in 230Th dating, 230Th and 234U half-life values, and U–Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry Cheng, Hai; Lawrence Edwards, R.; Shen, Chuan-Chou Earth and Planetary Science Letters, Vol. 371-372 https://doi.org/10.1016/j.epsl.2013.04.006	journal	June 2013
Determination of uranium after separation using solvent extraction from slightly nitric acid solution and spectrophotometric detection Orabi, A. H. Journal of Radiation Research and Applied Sciences, Vol. 6, Issue 2 https://doi.org/10.1016/j.jrras.2013.09.001	journal	October 2013
High-precision 238U–234U–230Th disequilibrium dating of the recent past: a review Zhao, Jian-xin; Yu, Ke-fu; Feng, Yue-xing Quaternary Geochronology, Vol. 4, Issue 5 https://doi.org/10.1016/j.quageo.2009.01.012	journal	October 2009
Anion Exchange Characteristics of the Elements in Nitric Acid Medium. Faris, J. P.; Buchanan, R. F. Analytical Chemistry, Vol. 36, Issue 6 https://doi.org/10.1021/ac60212a067	journal	May 1964
Studies of the Solvent Extraction Behavior of the Transition Elements. II. Isolation of Gram Quantities of Th ²³⁰ (Ionium) from a Pitchblende Residue Peppard, D. F.; Asanovich, G.; Atteberry, R. W. Journal of the American Chemical Society, Vol. 75, Issue 18 https://doi.org/10.1021/ja01114a055	journal	September 1953
Structural investigations on uranium( vi ) and thorium( iv ) complexation with TBP and DHOA: a spectroscopic study Verma, P. K.; Mohapatra, P. K.; Bhattacharyya, A. New Journal of Chemistry, Vol. 42, Issue 7 https://doi.org/10.1039/C7NJ04460G	journal	January 2018
Indirect determination of the Th 230 ( n , f ) and Th 231 ( n , f ) cross sections for thorium-based nuclear energy systems Goldblum, B. L.; Stroberg, S. R.; Allmond, J. M. Physical Review C, Vol. 80, Issue 4 https://doi.org/10.1103/PhysRevC.80.044610	journal	October 2009
Production of ²²⁵Ac and ²²³Ra by irradiation of Th with accelerated protons Zhuikov, B. L.; Kalmykov, S. N.; Ermolaev, S. V. Radiochemistry, Vol. 53, Issue 1, p. 73-80 https://doi.org/10.1134/S1066362211010103	journal	February 2011
Thorium-234 Electrodeposition Using Ionic and Aqueous Uranyl Solutions Saliba-Silva, A. M.; Linardi, M.; Dos Santos Rocha, L. ECS Transactions, Vol. 66, Issue 21 https://doi.org/10.1149/06621.0011ecst	journal	July 2015
Separation of ²³⁰Th (Ionium) from Uranium Ores in Sulfuric Acid and in Nitric Acid Solutions Kluge, E.; Lieser, Κ. H.; Loc, I. ract, Vol. 24, Issue 1 https://doi.org/10.1524/ract.1977.24.1.21	journal	February 1977
The Radiochemistry of Thorium Hyde, E. K. https://doi.org/10.2172/4241632	report	April 1959
Development of ²²⁵ Ac Radiopharmaceuticals: TRIUMF Perspectives and Experiences Robertson, Andrew Kyle Henderson; Ramogida, Caterina Fortunata; Schaffer, Paul Current Radiopharmaceuticals, Vol. 11, Issue 3 https://doi.org/10.2174/1874471011666180416161908	journal	October 2018

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230Th
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
Uranium ore
ion exchange chromatography
liquid-liquid separation

Separation of thorium from uranium ore

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References (21)

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