Research on extraction of cerium from rare-earth metals concentrate solutions by electrochemical and extraction methods
https://doi.org/10.17073/0021-3438-2016-4-34-41
Abstract
In order to extract cerium from rare-earth metals (REM) recovered from Russian raw materials, the following modern domestic equipment was selected: OXITRON-58L-O2 diaphragm electrolyzer manufactured by LLC «Delfin Aqua» with the purpose of Ce(III) to Ce(IV) oxidation; EC-10FA centrifugal extractor manufactured by LLC «LIT» with the purpose of Ce(IV) extraction from the sum of REM. These units were used in the studies performed to identify conditions that would lead to cerium oxidation to a 4-valent state with the electrochemical method as well as to recover and clean Ce(IV) from rare-earth metals with the solvent extraction method. The experiments were performed with standardized test solutions of cerium nitrate and process solutions obtained using loparite concentrate from the Solikamsk Magnesium Plant. The conditions were identified and equipment operation modes were designed in order to enable the chosen electrolyzer model to achieve a degree of cerium oxidation in REM process solutions over 99 % at power consumption below 0,8 kW/h per 1 kg of CeO2, and extract cerium from REM concentrate solution using the laboratory cascade of 20 centrifugal extractors with further production of 99,6 % pure CeO2.
About the Authors
O. V. Yurasova
«Giredmet»
Russian Federation
Russian Federation
Ph.D., Head of the Laboratory technology of high purity compounds,
119017, Moscow, B. Tolmachevsky per., 5, buil. 1
T. A. Kharlamova
LLC “Delfin Aqua”
Russian Federation
Russian Federation
Ph.D., Leading Researcher of «Giredmet», Head of Innovation ECA-Technology Co.,
115088, Moscow, 2nd Yuzhnoportovy PR-d, d. 35
A. A. Semyonov
LLC «Laboratory of Innovative Technologies»
Russian Federation
Russian Federation
Head of the Laboratory of the separation extraction,
141090, Moscow, Pionerskaya str., 1/4
S. A. Vasilenko
«Giredmet»
Russian Federation
Engineer-Technologist of the Laboratory technology of high purity compounds
Russian Federation
Engineer-Technologist of the Laboratory technology of high purity compounds
A. A. Gasanov
«Giredmet»
Russian Federation
Ph.D., Head of the Branch ultrapure substances, rare and dispersed metals
Russian Federation
Ph.D., Head of the Branch ultrapure substances, rare and dispersed metals
A. F. Alaferdov
«Giredmet»;
«Dolphin Aqua»
Russian Federation
Russian Federation
Ph.D., Researcher;
Researcher
T. V. Dobrynina
«Giredmet»
Russian Federation
Engineer-Technologist of the Laboratory technology of high purity compounds
Russian Federation
Engineer-Technologist of the Laboratory technology of high purity compounds
T. V. Fedulova
«Giredmet»
Russian Federation
Major Researcher of the Laboratory technology of high purity compounds
Russian Federation
Major Researcher of the Laboratory technology of high purity compounds
References
1. Mikhailichenko A.I., Mikhlin E.B., Patrikeev Yu.B. Redkozemel’nye metally [Rare earth metals]. Moscow: Metallurgiya, 1987.
2. Korovin S.S., Zimina G.V., Reznik A.M., Bukin V.I., Korkushko V.F. Redkie i rasseyannye elementy In: Khimiya i tekhnologiya [Rare and dispersed elements. In: Chemistry and Technology]. Moscow: MISIS, 1996. Vol. 1.
3. Lokshin E.P., Sedneva T.A., Kalinnikov V.T. Sposob polucheniya dioksida tseriya [The method of producing cerium dioxide]: Pat. 2341459 (RF). 2008.
4. Postanovlenie Pravitel’stva RF ot 15.04.2014. No. 328 «Ob utverzhdenii gosudarstvennoi programmy Rossiiskoi Federatsii “Razvitie promyshlennosti i povyshenie ee konkurentosposobnosti”» [The resolution of the government of the RF from 15.04.2014. No. 328 «On approval of the stste program of the Russia Federation “The development of industry and increasing its competitiveness”»]. URL: http://pravo.gov.ru/proxy/ips/?-docbody=&nd=102352828&rdk=&backlink=1 (accessed 26.01.2016) (in Rus.).
5. Nechaev A.V., Shestakov S.V., Kozyrev A.B., Sibilev A.S., Glushchenko Yu.G. Vydelenie summy oksidov neodima i prazeodima iz summy karbonatov RZE proizvodstva [Allocation of the amount of neodymium oxide and praseodymium from amount of REE carbonates production OAO SMZ]. In: Novye podkhody v khimicheskoi tekhnologii mineral’nogo syr’ya. Primenenie ekstraktsii i sorbtsii: Mater. 2 Ross. konf. s mezhdunarodnym uchastiem [Sodium thermal reduction of potassium heptafluorotantalate heat treated in air atmosphere. In: New approaches in chemical technology minerals. Use of extraction and sorption: Mater. 2-nd Russian Conf. with Intern. participation (St. Peterburg, 3—6 June 2013)]. Apatity: Kola Scientific Centre RAS, 2013. Pt. 2. P. 151—152.
6. Morais C.A., Benedetto J.S., Ciminelli V.S.T. Recovery of Cerium by Oxidation/Hydrolysis with KMnO4—Na2CO3. In: Proc. 5-th Inter. Symp. «Honoring Professor Ian M. Ritchie. TMS». Vancouver, 2003. P. 1773—1782.
7. Ritchi G.M., Eshburk A.V. Ekstraktsiya: printsipy i primenenie v metallurgii [Solvent extraction. Principles and application in metallurgy]. Moscow: Metallurgiya, 1983.
8. Sedneva T.A., Tikhomirova I.A. Okislenie tseriya v membrannom elektrolizere [The oxidation of cerium in the membrane electrolyzer]. Apatity: ICTREMRM KSC RAS, 2002.
9. Ayers A., Cormak A., Gray J., Schneider A. Apparatus for electrolytic oxidation or reduction, concentration, and separation of elements in solution: Pat. 3.770.612 (USA). 1973.
10. Pozdeev S.S., Kondrat’eva E.S., Gubin A.F., Kolesnikov V.A. Elektrookislenie ionov tseriya (III) v elektrolizere membrannogo tipa [Electrooxidation of ions cerium (III) in an electrolytic cell of the membrane type]. Uspekhi v khimii i khim. tekhnologii. 2014. Vol. VIII. No. 5. P. 98—100.
11. Gasanov A.A., Yurasova O.V., Kharlamova T.A,. Alaverdov А.F. Konstruktsiya elektrolizerov dlya okisleniya tseriya [Construction of electrolyzers for oxidation of cerium]. Tsvet. metally. 2015. No. 8. P. 50—53.
12. Bakhir V.M. Elektrokhimicheskaya modul’naya yacheika dlya obrabotki rastvorov elektrolita [Electrochemical modular cell for the treatment of electrolyte solutions]: Pat. 2516226 (RF). 2014.
13. Abramov A.M., Sobol’ Yu.B., Yachmenev A.A., Donetskii E.N., Polumiev L.V., Solodovnikov A.V. Tsentrobezhnyi ekstraktor [Centrifugal extractor]: Application for invention 2013146616 (RF). 2013.
14. Vol’dman G.M. Osnovy ekstraktsionnykh i ionoobmennykh protsessov gidrometallurgii [Fundamentals of extraction and ion exchange processes, of hydrometallurgy]. Moscow: Metallurgiya, 1982.
15. Apanasenko V.V., Vol’dman G.M. Raschet material’nykh balansov tekhnologicheskikh protsessov s ispol’zovaniem elektronnykh tablits Excel [Mass balance calculation of technological processes using Excel spreadsheets]. Tsvet. metally. 2010. No. 9. P. 59—66.
Review
For citations:
Yurasova O.V., Kharlamova T.A., Semyonov A.A., Vasilenko S.A., Gasanov A.A., Alaferdov A.F., Dobrynina T.V., Fedulova T.V. Research on extraction of cerium from rare-earth metals concentrate solutions by electrochemical and extraction methods. Izvestiya. Non-Ferrous Metallurgy. 2016;(4):34-41. (In Russ.) https://doi.org/10.17073/0021-3438-2016-4-34-41
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