Effect of Adding Sintering Furnace Electrostatic Precipitator Dust on Combined Leaching of Bauxites and Cakes / Loginova I.V., Shoppert A.A., Chaikin L.I. // Metallurgist. - 2015. - V. 59, l. 7-8. - P. 698-704.

ISSN:
00260894
Type:
Article
Abstract:
Results are given for studying combined leaching of bauxite, bauxite cake, and sintering section electrostatic precipitator dust. Experiments are performed within the following limiting conditions: temperature 220–260°C, leaching time 30–90 min, return solution concentration 315–280 g/dm3 Na2Oc. It is proven that alumina extraction into solution with combined leaching of bauxite, cake, and electrostatic precipitator dust is higher than with standard bauxite leaching by the Bayer process. A favorable effect is achieved due to forming alumino-ferruginous hydrogarnets during leaching. An increase in leaching temperature makes it possible to improve alumina leaching under stable uniform conditions. © 2015, Springer Science+Business Media New York.
Author keywords:
alkali-aluminate solution; autoclave; bauxite charge; Bayer process; cake; combined leaching; electrostatic precipitator dust; high-temperature leaching; Middle Timan bauxite; return dust
Index keywords:
Alumina; Autoclaves; Dust; Electrostatic precipitators; Electrostatics; Sintering; Aluminate solution; bauxite charge; Bayer process; cake; High temperature; Middle Timan bauxite; Leaching
DOI:
10.1007/s11015-015-0161-y
Смотреть в Scopus:
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956926329&doi=10.1007%2fs11015-015-0161-y&partnerID=40&md5=03a635c3ed58368c652673823ef94373
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Link https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956926329&doi=10.1007%2fs11015-015-0161-y&partnerID=40&md5=03a635c3ed58368c652673823ef94373
Affiliations Ural Federal Univeristy (UrFU), Ekaterinburg, Russian Federation
Author Keywords alkali-aluminate solution; autoclave; bauxite charge; Bayer process; cake; combined leaching; electrostatic precipitator dust; high-temperature leaching; Middle Timan bauxite; return dust
References Bronevoi, V.A., Romashkov, A.K., Svirin, A.N., Skornyakov, V.I., Alumina-aluminium complex project in the Komi Republic based on processed Central Taman bauxite (2001) Tsvet. Metall, 12, pp. 74-79; Loginova, I.V., Kyrchikov, A.V., (2012) Equipment-Production Scheme in Alumina Manufacture: Teach. Ai, , URFU, Ekaterinburg; Minstis, M.Y., Nikolaev, I.V., Sirazutdinov, G.A., (2012) Alumina Production: Textboo, , Nauka, Novosibirsk; Gu, S., Yin, Z., Yang, Z., He, W., Improvements of the processes to produce alumina from Chinese diasporic bauxite (2003) Light Metal, pp. 153-158; Loginova, I.V., Koryukov, V.N., Saltanov, V.V., Contemporary leaching of bauxite and sinters (1986) Izv. Vyssh. Uchebn. Zaved., Tsvet. Met, 4, pp. 43-48; Loginova, I.V., Koryukov, V.N., Saltanov, V.V., Improvement of sinter leaching efficiency (1986) Izv. Vyssh. Uchebn. Zaved., Tsvet. Met, 5, pp. 39-42; V. A. Lebedev, I. V. Loginova, S. F. Ordon, and V. N. Krapotkin, “New technology in aluminum metallurgy,” Proc. Sci.-Pract. Conf. Urals Aluminum – 2005, UGTI-UPI, Ekaterinburg, pp. 1–6; Ni, L.P., Goldman, M.M., Solenko, T.V., (1971) Iron Oxides in Alumina Productio, , Nauka, Alma Ata; Yang, Q., Zhao, Q., Qi, L., Investigation of new digesting technology of diaspore (2003) Light Metal, pp. 159-166; Suss, A.G., Paromova, I.V., Gabrielyan, T.N., Tube digesters: protection of heating surfaces and scale removal (2004) Light Metal, pp. 137-142; Ni, L.P., Raizman, V.A., Khalyapina, O.B., (1998) Alumina Production: Reference Boo, , Institute of Metallurgy and Enrichment, Alma Ata; Beneslavskii, S.I., (1974) Bauxite Mineralog, , Nedra, Moscow; Ivanov, V.A., Kasatov, B.N., Krasavina, T.N., Rozinova, E.L., (1974) Thermal Analysis of Minerals and Rock, , Nedra, Leningrad
Correspondence Address Loginova, I.V.; Ural Federal Univeristy (UrFU)Russian Federation; email: loginova_irina@mail.ru
Publisher Springer New York LLC
Language of Original Document English
Abbreviated Source Title Metallurgist
Source Scopus