Kinetics of the oxidative hydroxylation of tetraphosphorus in the presence of copper(II) chloride modified by humic (fulvo-) acid
Abstract
It was established that in mild conditions (50-70 oC, РО2= 1 atm) white phosphorus effectively is oxidized by oxygen in water-toluene solutions of copper(II) chloride modified by humic (fulvo-) acid to give mainly phosphoric acid. Humic (fulvo-) acid was extracted from brown coal of domestic deposit Kiyakty. For determination of optimum parameters of fulvo-acid extraction the laboratory experiments were carried out using the method of experiment planning. The kinetics, intermediate and final products, optimum conditions of new catalytic reaction of P4 oxidation by oxygen in water medium were defined by kinetics, volumometry, redox-potentiometry, 31Р{1Н} NMR spectroscopy and titration.
References
1. Dorfman Ya.A., Levina L.V., Petrova T.V., Yemelyanova V.S., Polimbetova G.S. A replaceable oxidative alkoxylation of phosphine in the presence of copper(I, II) chlorides // Kinetics and a catalysis (rus.). - 1989. - T. 30, №. 6. - P. 1483-1484.
2. Safiullin R. L., Dokichev V.A., Yakupova L.R., Sultanova R.M., Hursan S.L., Zaripov R.N., Tomilov Yu.V. Kinetic regularities of olefins cyclopropanation catalyzed by copper(II) compounds // Kinetics and a catalysis (rus.). – 2008. – T. 48, № 1. – P. 48-56.
3. Herrmann W.A., Kohlpaintner Ch.W., Hanson B.E., Kang X. Syntheses of water-soluble phosphines and their transition metal complexes // Inorg. Synth. - 1998. - Vol. 32. - P. 8-25.
4. Thermal phosphoric acid, salts and fertilizers on its basis / Ed. I.N. Postnikova. - M: Chemistry. - 1980. - 330 p.
5. Malyshev V.P. The method of experiment planning. - Alma-Ata: Science, 1981. - 116 p. 6. Zlobina E.V., Dolgova N. D. Tasks and methodical instructions for laboratory researches in analytical chemistry. Ed.-method. handbook. - Almaty: Kazakh university. - 2010. – 114 p.
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