Журналы →  Non-ferrous Metals →  2014 →  №1 →  Назад

ALUMINIUM, ALUMINA, CARBONACEOUS MATERIALS
Название Selective extraction of yttrium from alumina industry slimes
Автор Pasechnik L. А., Yatsenko А. S., Yatsenko S. P., Skryabneva L. M.
Информация об авторе

Institute of Solid State Chemistry of Ural Branch of Russian Academy of Sciences, Ekaterinburg, Russia:

L. A. Pasechnik, Senior Researcher, e-mail: pasechnik@ihim.uran.ru

A. S. Yatsenko, Senior Researcher

S. P. Yatsenko, Head of Laboratory

L. M. Skryabneva, Engineer

Реферат

This article shows the study of partial dissolution of alumina industry red mud by hydrochloric and sulfuric acids. Extraction of the basic components (Fe, Al, Ca, Ti), scandium and yttrium was determined, depending on the depth of treatment by acid solutions with different initial concentrations at the temperature of 90 oС, during 1 hour. There were found the optimal conditions of partial mud dissolution, which provide more than 80% extraction of yttrium and only several percent extraction of iron, aluminum, titanium, and scandium in diluted sulfuric acid. Calcium, readily extracted by hydrochloric acid, can be later removed by sulfates extraction with following transformation into anhydride. The content of yttrium in solution can be increased to 0.18 g/dm3 by recycling of acid solutions during the red mud treatment. Yttrium was sorbed at the value of рН = 2–5 on H-shaped KU-28 (КУ-28) cation exchanger. Desorption was carried out by mixture of sodium sulfate and sulfuric acid or by 1M solution of sulfuric acid. For the purpose of obtaining of yttrium-rich concentrate, a small amount of aluminum, iron and titanium hydroxides were removed before sorption, using the neutralization by ammonia solution. In that case, the crude concentrate contained 3–7% of yttrium oxide. Further selective extraction of yttrium includes hydrolysis, extraction by phosphorus-containing organic compounds (tributylphosphate, di-(2-ethylhexyl)phosphoric acid), re-extraction, and deposition and calcination of oxalates. As a result, there was obtained the 99.0% yttrium oxide. The scale of yttrium production was calculated on the basis of demand for coagulant, required for waste water treatment, when sulfuric acid is replaced by liquid coagulant, produced simultaneously with yttrium extraction. This amount of coagulant provides the production of 3000 kg of yttrium oxide. At the same time, 6800 t of anhydrite will be produced. Consumption of basic chemical reactants for processing of 30,000 t of red mud was estimated. The payback period of the project is 3.5 years.

This work was carried out with partial financial support of the program of the General Committee of Ural Branch of Russian Academy of Sciences, project No. 13-P-3-1016 (13-П-3-1016).

Ключевые слова Red mud, hydrochloric acid, sulfuric acid, extraction, temperature, yttrium, coagulant
Библиографический список

1. Kosynkin V., Trubanov Yu. Metally Evrazii — Eurasian Metals. 2011. No. 5. pp. 41–44.
2. Naumov A. V. Izvestiya vuzov. Tsvetnaya metallurgiya — Russian Journal of Non-Ferrous Metals. 2008. No. 1. pp. 22–31.
3. Mashkovtsev G. A., Bykovskiy L. Z. Tezisy mezhdunarodnoy konferentsii “Redkozemelnye elementy: geologiya, khimiya, proizvodstvo i primenenie”, 29–31 oktyabrya 2012 (Thesis of international conference “Rare-earth elements: geology, chemistry, production and application”, October 29–31, 2012). Moscow : All-Russian Scientific Research Institute of Chemical Technology.
4. Kurkov A. V., Tarkhanov A. V., Kartsev V. E., Ilin A. K. Tezisy mezhdunarodnoy konferentsii “Redkozemelnye elementy: geologiya, khimiya, proizvodstvo i primenenie”, 29–31 oktyabrya 2012 (Thesis of international conference “Rare-earth elements: geology, chemistry, production and application”, October 29–31, 2012). Moscow : All-Russian Scientific Research Institute of Chemical Technology.
5. Arzhatkina L. A., Arzhatkina O. A., Fedorov V. D., Kosynkin V. D. Tezisy mezhdunarodnoy konferentsii “Redkozemelnye elementy: geologiya, khimiya, proizvodstvo i primenenie”, 29–31 oktyabrya 2012 (Thesis of international conference “Rare-earth elements: geology, chemistry, production and application”, October 29–31, 2012). Moscow : All-Russian Scientific Research Institute of Chemical Technology.
6. Sarychev G. A., Kosynkin V. D. Tezisy mezhdunarodnoy konferentsii “Redkozemelnye elementy: geologiya, khimiya, proizvodstvo i primenenie”, 29–31 oktyabrya 2012 (Thesis of international conference “Rare-earth elements: geology, chemistry, production and application”, October 29–31, 2012). Moscow : All-Russian Scientific Research Institute of Chemical Technology.
7. Svittsov A. A., Lisyuk B. S., Bondar M. Yu. Tezisy mezhdunarodnoy konferentsii “Redkozemelnye elementy: geologiya, khimiya, proizvodstvo i primenenie”, 29–31 oktyabrya 2012 (Thesis of international conference “Rare-earth elements: geology, chemistry, production and application”, October 29–31, 2012). Moscow : All-Russian Scientific Research Institute of Chemical Technology.
8. Sabirzyanov N. A., Yatsenko S. P. Gidrokhimicheskie sposoby kompleksnoy pererabotki boksita (Hydrochemical methods of complex processing of bauxite). Ekaterinburg : Ural Branch of Russian Academy of Sciences, 2006. 386 p.
9. Linnikov O. D., Yatsenko S. P., Sabirzyanov N. A. Sposob pererabotki krasnogo shlama (Red mud processing method). Patent RF, No. 2140998. Published : November 10, 1999.
10. Nikolaev I. V., Zakharova V. I., Ilinov D. V. et al. Tsvetnye metally — Non-ferrous metals. 1984. No. 5. pp. 58–60.
11. I. V. Nikolaev, V. I. Zakharova, T. N. Meskina et al. Sposob pererabotki krasnogo shlama (vyshchelachivaniem 20–30% rastvorom sernoy kisloty) (Red mud processing method (by leaching of 20–30% solution of sulphuric acid)). Certificate of Authority USSR, No. 1068386. 1981.
12. Diev V. N., Sabirzyanov N. A., Anashkin V. S., Skrebneva L. M., Yatsenko S. P. Sposob izvlecheniya ittriya (Method of lithium extraction). Patent RF, No. 2057196. Published : March 27, 1996.
13. Mursalimova M. L., Salnikova E. V. Vestnik Orenburgskogo gosudarstvennogo universiteta – Bulletin of Orenburg State University. 2004. No. 6. pp. 130–134.
14. Smirnov D. I., Molchanova T. V., Vodolazov L. I., Peganov V. A. Tsvetnye Metally — Non-ferrous metals. 2002. No. 8. pp. 64–69.
15. Shirokova A. G., Yatsenko S. P. Sposob polucheniya tverdykh ekstra gentov dlya izvlecheniya redkikh metallov iz kislykh rastvorov (Method of obtaining of solid extragents for extraction of rare metals from acid solutions). Patent RF, No. 2395529. Published : July 27, 2010. Bulletin No. 21.
16. Shirokova A. G., Pasechnik L. A., Yatsenko S. P. Izvestiya Rossiyskoy akademii nauk. Seriya fizicheskaya — Bulletin of Russian Academy of Sciences: Physics. 2012. Vol. 76, No. 5. pp. 678–680.
17. Shirokova A. G., Pasechnik L. A., Yatsenko S. P., Borisov S. V., Grigorev I. G. Zhurnal strukturnoy khimii — Journal of Structural Chemistry. 2010. Vol. 51 (Application). pp. 140–144.
18. Ochsenkiihn-Petropulu M., Lyberepulu Th., Parissakis G. Analytica chimica Acta. 1995. Vol. 315. pp. 231–237.
19. Diev V. N., Sabirzyanov N. A., Yatsenko S. P., Anashkin V. S., Skryabneva L. M. Sposob ochistki shchelochnykh stochnykh vod, neorgani cheskiy koagulyant dlya ochistki stochnykh vod i sposob ego polucheniya (Method of treatment of alkaline waste waters, inorganic coagulant for waste water treatment and method of its obtaining). Patent RF, No. 2085509. Published : July 27, 1997.

Language of full-text английский
Полный текст статьи Получить
Назад