10.14489/td.2022.08.pp.044-048

2022, 08 August

DOI: 10.14489/td.2022.08.pp.044-048

Boriskin O. I., Larin S. N., Nuzhdin G. A., Murav’eva I. V.
THE PALLADIUM COMPLEXES DURING THERMAL DECOMPOSITION PHASE COMPOSITION INVESTIGATION
(pp. 44-48)

Abstract. In palladium refining technologies, as well as in some analytical procedures, complexes of bivalent palladium with diimines, amines, oximes, thiourea, and other compounds are used. In the technologies used, complex compounds of palladium are subjected to thermal decomposition, during which metallic palladium is formed. The precious metals market is seeing a rapid rise in the price of palladium on the back of a rapid increase in demand for it. It has been experimentally shown that active decomposition of dichlorodiamminepalladium Pd(NH₃)₂Cl₂ and dimethylglyoximpalladium (C₄H₇N₂O₂)2Pd occurs at temperatures of 200…250 °C. Only the diffraction maxima of palladium were observed on the X-ray diffraction patterns of samples that underwent heat treatment at 900 °C and above. At these temperatures, palladium oxide is not stable. At temperatures around 500 °C, the samples are almost completely oxidized; there are no reflections of palladium on the diffraction patterns.

Keywords: metallurgy, X-ray diffraction analysis, spectrometry, phase composition, palladium, thermal decomposition, diagram, phase state.

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O. I. Boriskin, S. N. Larin (Federal State Budgetary Educational Establishment of Higher Education “TULA STATE UNIVERSITY” (TulSU), Tula, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
G. A. Nuzhdin (“Techpolicom” Scientific and Production Company, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
I. V. Murav’eva (National University of Science and Technology MISiS, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

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