2024 - Sustainable Industrial Processing Summit
SIPS 2024 Volume 4. Kanatzidis Intl. Symp / Solid State Chemistry and Materials

Editors:F. Kongoli, M.A. Alario-Franco, I. Chung, M. Delferro, O. Farha, H. Kageyama, F. Marquis, A. Navrotsky, A. Tressaud, P. Trikalitis
Publisher:Flogen Star OUTREACH
Publication Year:2024
Pages:222 pages
ISBN:978-1-998384-10-5 (CD)
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    THE INVESTIGATION OF INTERACTION OF PCl5 WITH CHLORIDES OF SOME METALS

    Emma Vovkotrub1; Alexander Salyulev1;
    1INSTITUTE OF HIGH TEMPERATURE ELECTROCHEMISTRY, Ekaterinburg, Russian Federation;
    Type of Paper: Regular
    Id Paper: 532
    Topic: 52

    Abstract:

    At reprocessing of phosphorus containing raw material by methods of chloride metallurgy together are present chlorides of phosphorus and other elements. The data about possibility of the chemical interaction between PCl5 and almost all mono- and divalent metal chlorides, as well as LnCl3 (Ln – rare earth elements) in scientific literature are absent. We have studied using Raman spectroscopy (spectrometer Microprobe MOLE, Ar+ laser with λ= 514,5 nm) the interaction of molten chlorides of alkali, alkali-earth, rare earth and some transition metals with PCl5 vapours at elevated pressures (up to 3 MPa) and solid chlorides of the same metals with molten PCl5 at ~ 618 K.

    The phosphorus pentachloride interacts with MgCl2, CdCl2, MnCl2, CoCl2, NiCl2, CuCl2 and all LnCl3 (Ln = Sc, Y, La - Lu) for the formation of complex cations [PCl4]+ (Td): v1(A1) ~ 453, v2(E) ~ 175, v3(F2) ~ 656, v4(F2) ~ 249 cm-1 and complex chloride anions the corresponding di- or trivalent metals that was shown firstly. The compound Cs+[PCl6]- is the reaction product between molten PCl5 and solid CsCl. The chemical interaction between PCl5 and MCl (M = Rb - Li) and M′Cl2 (M′ = Ba - Ca, Pb) was not discovered.

    The interaction of solid PbCl2 and CeCl3 with molten PCl5 at chlorine atmosphere (Pchlorine = 4-5 MPa, 445 K) leads to the formation of double compounds (PCl4)2PbCl6 and (PCl4)2CeCl6 containing [PCl4]+ (Td), [PbCl6]2- and [CeCl6]2- (Oh) groupings.

    Keywords:

    Synthesis; Complex compounds; PCl5; metal chlorides; Raman spectra

    Cite this article as:

    Vovkotrub E and Salyulev A. (2024). THE INVESTIGATION OF INTERACTION OF PCl5 WITH CHLORIDES OF SOME METALS. In F. Kongoli, M.A. Alario-Franco, I. Chung, M. Delferro, O. Farha, H. Kageyama, F. Marquis, A. Navrotsky, A. Tressaud, P. Trikalitis (Eds.), Sustainable Industrial Processing Summit Volume 4 Kanatzidis Intl. Symp / Solid State Chemistry and Materials (pp. 219-220). Montreal, Canada: FLOGEN Star Outreach