Investigation the process of crystallizational purification of lithium isopropoxide by ICP-methods

V.M. Retivov; A.E. Amelina; E.E. Grinberg

Investigation the process of crystallizational purification of lithium isopropoxide by ICP-methods

V.M. Retivov¹, A.E. Amelina², E.E. Grinberg³

research article Pages: 62-66

¹ науч. сотрудник, Испытательный аналитический центр, ФГУП «ИРЕА» (Москва)
² мл. науч. сотрудник, ФГУП «ИРЕА» (Москва)
³ д.х.н., профессор, зам. директора - главный химик ФГУП «ИРЕА» (Москва)

Keywords: lithium alkoxides crystallizational purification ICP-MS ICP-AES

Abstract

In this paper the synthesis of lithium isopropoxide by dissolving lithium metal in excess of isopropyl alcohol are considered. Crystallizational purification of the product from a solution in n-heptane are carried out. Both concentrations, impurities content and coefficients of distribution between crystal and solution in lithium isopropoxide are investigated by ICP-MS and ICP-AES methods.

It is concluded that these methods can be used for the analysis of lithium alkoxides. It is shown that there are quantitative transition metal impurities in a solution containing the desired product during the synthesis of lithium alkoxide. However it is found that the distribution coefficients \"main substance - impurity\" at crystallization from solution of alcohol and alcohol-hexane mixtures are close to one, thus the crystallizational purification is ineffective.

How to cite

Ретивов В.М., Амелина А.Е., Гринберг Е.Е. Исследование процесса кристаллизационной очистки изопропилата лития с использованием методов ICP // Наукоемкие технологии. 2013. № 3. С. 62–66.

References

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Vogel A.I., Tatchell A.R., Furnis B.S., Hannaford A.J. Vogel\'s Textbook of Practical Organic Chemistry, 5th Edition. 1996.
Brain M.W., Maw-Lin Foo // Journal of American Chemical Society. 2011.V. 133. P.14522-14525.
Joong-Sik Yang and another // Journal of Materials Science. 1990. V. 25. № 3. P. 1773-1778.
Turova H.JA., Novosjolova A.V. Spirtovye proizvodnye metallov // Uspekhi khimii. 1965. T. 34. № 3. S. 385-422.
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[1] Nataliya Y. Turova. Evgeniya P. Turevskaya. Vadim G. Kessler. Maria I. Yanovskaya L.Ya.Karpov.The Chemistry of Metal Alkoxides. Chemistry Handbook. Kluwer Academic Publishers. 2002.

[2] Patent RF № 2188159. Sposob poluchenija metaniobata litija // Grinberg E.E., Mikljaev A.D., Semin A.A., Ligun V.D., Stepanov S.V., Annenkov A.N.

[3] Patent RF № 2188160. Sposob poluchenija metatantalata litija // Grinberg E.E., Mikljaev A.D., Semin A.A., Ligun V.D., Stepanov S.V., Annenkov A.N.

[4] Vogel A.I., Tatchell A.R., Furnis B.S., Hannaford A.J. Vogel\'s Textbook of Practical Organic Chemistry, 5th Edition. 1996.

[5] Brain M.W., Maw-Lin Foo // Journal of American Chemical Society. 2011.V. 133. P.14522-14525.

[6] Joong-Sik Yang and another // Journal of Materials Science. 1990. V. 25. № 3. P. 1773-1778.

[7] Turova H.JA., Novosjolova A.V. Spirtovye proizvodnye metallov // Uspekhi khimii. 1965. T. 34. № 3. S. 385-422.

[8] Kamenski C.K., Lewis D.W. // Journal of Organic Chemistry. 1965. V. 30. P. 3498.

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