Lomonosov Moscow State Academy of Fine Chemical Technology

M. V. Tsygankova, Junior Researcher, e-mail: tender-mitht@mail.ru
O. E. Dudorova, Student
V. I. Bukin, Professor
E. I. Lysakova, Assistant Professor
A. G. Smirnova, Researcher

In this research lows of vanadium extraction from the sulfuric solutions by N-(2-hydroxy-5-nonylbenzyl)-β,β-dihydroxyethylamin (NBEA-0) and N-(2-hydroxy-5-nonylbenzyl)-β-hydroxyethylmethylamin (NBEA-2) from pH were investigated. In the range pH 3–5 the vanadium distribution coefficients is shown to amount >220 from NBEA-0, that corresponds to 99% extent of recovery, and >150 from NBEA-2, that corresponds to 95%. Vanadium is determined to be extracted as vanadate-ion in range of concentrations C_v⁰ = 0.5 g/l, and in range of concentrations C_v⁰ = 5.0 g/l as decavanadate-ion. The obtained data about composition of extracted compounds were certificated by vanadium extraction isoterms and by data of IR-spectroscopy. Of the base of investigations the equations of the vanadium extraction from the sulfuric solutions by NBEA extractants were offered. Vanadium reextraction by alkaline and ammonia solutions were investigated. The researches by multiple using extractans were carried out. Extractant is stable during 8 cycles of extraction-reextraction with the extent of recovery about 90% by the use of NBEA-2.

1. Korovin S. S., Drobot D. V., Fedorov P. I. Redkie i rasseyannye elementy. Khimiya i tekhnologiya : v 3 kn. : uchebnik dlya vuzov. Pod red. S. S. Korovina (Rare and Trace elements. Chemistry and Technology : in 3 books : a text-book for high schools. Ed. S. S. Korovin). Moscow, 1999. Book 2. 464 p.
2. Lozano L. J., Godiner C. Minerals Engineering. 2003. Vol. 16. pp. 291–294.
3. Navarro R., Guzman J., Saucedo I., Revilla J., Guibal E. Waste Management. 2007. Vol. 27. pp. 425–438.
4. Nekovar P., Schrцtterova D. J. Radioanalytical and Nuclear Chemistry. 1998. Vol. 228, No. 1/2, pp. 95–98.
5. Palant A. A., Bryukvin V. A., Petrova V. A. Metally — Metals. 2006. No. 4. pp. 30–32.
6. Patent 2009228 RF. Sposob izvlecheniya metallov iz vodnykh rastvorov (Method of metals extraction from aqueous solutions). Balanovskiy N. V., Zelenchev A. V., Sokalskaya L. I., Tatarnikov A. V. ; Assertes 29.05.1992 ; Published 15.03.1994, Bulletin No. 16.
7. Patent 2358029 RF. Sposob izvlecheniya vanadiya (Method of vanadium extraction). Tsygankova M. V, Bukin V. I., Reznik A. M., Smirnova A. G., Lysakova E. I.; patentoobladatel Moskovskaya gosudarstvennaya akademiya tonkoy khimicheskoy tekhnologii im. M. V. Lomonosova (Holder of patent Lomonosov Moscow University of Fine Chemical Technology) ; Asserted 07.04.2008 ; Published 10.06.2009, Bulletin No. 16.
8. Muzgin V. N., Khamzina L. B., Zolotavin V. L., Bezrukov I. Ya. Analiticheskaya khimiya elementov. Vanadiy (Analytical Chemistry of Elements. Vanadium). Moscow, 1981. 215 p.
9. Palit Sh. R., Das M. N., Somayadzhulu G. R. Nevodnoe titrovanie : per. s angl. Pod red. A. P. Kreshkova (Non-aqueous Titration : transl. form English. Ed. A. P. Kreshkov). Moscow, 1958. 192 p.
10. Mezhov E. A. Ekstraktsiya aminami i chetvertichnymi ammonievymi osnovaniyami : spravochnik (Extraction by Amines and Quaternary Ammonium Basics : reference book). Moscow, 1999. 372 p.
11. Zolotov Yu. A. Ekstraktsiya vnutrikompleksnykh soedineniy (Extraction of Chelate Compounds). Moscow, 1968. 295 p.
12. Ivakin A. A., Fotiev A. A. Khimiya pyativalentnogo vanadiya v vodnykh rastvorakh. Trudy in-ta khimii UNTs AN SSR (Chemistry of Quinquevalent Vanadium in Aqeuous Solutions. Proceedings of the Federal State Budget Institution of Science Institute of Organic Chemistry, Ufa Scientific Center of Russian Academy of Sciences). Sverdlovsk, 1971. Issue 24. 191 p.
13. Onodera S., Ikegami Y. Inorganic Chemistry. 1980. Vol. 19. pp. 615–618.
14. Nakomoto K. Infrakrasnye spektry neorganicheskikh soedineniy : per. s angl. Pod red. Yu. A. Pektina (Infrared Spectra of Inorganic Compounds : transl. from English. Ed. Yu. A. Pektin). Moscow, 1966. 411 p.
15. Zabolotskikh A. V., Tatyanina I. V., Torchenkova E. A. Koordinatsionnaya khimiya — Coordination Chemistry. 1987. Vol. 13, issue 10. pp. 1362–1368.