METHOD OF PRODUCING COMPLEX LANTHANUM, MOLYBDENUM AND TELLURIUM OXIDE Russian patent published in 2019 - IPC C01F17/00 C01G39/02 C01B19/00 C30B29/22 C03C6/00 

FIELD: chemistry.

SUBSTANCE: invention relates to chemistry and relates to a method of synthesis of a complex oxide of lanthanum, molybdenum and tellurium, which can be used to produce lanthanum-containing tellurite-molybdate glass. Method of producing complex oxide of lanthanum, molybdenum and tellurium La₂MoTe₆O₁₈ involves dissolving separately in distilled water initial compounds, such as hexahydrate of lanthanum nitrate La(NO₃)₃⋅6H₂O, ammonium heptamolybdate tetrahydrate (NH₄)₆Mo₇O₂₄⋅4H₂O and orthotelluric acid H₆TeO₆. Then, obtained solutions are mixed, evaporation of precipitate is performed till dryness, grinding and calcination of obtained dry residue at temperature of 600 °C to obtain white powder. At that, weighed portions of initial components of such masses are used to make the atomic ratio La:Mo:Te equal to 2:1:6.

EFFECT: obtained La₂MoTe₆O₁₈ can be used not only as a charge component along with other compounds, but also as the only initial substance for synthesis of lanthanum-containing tellurite-molybdate glasses, which considerably simplifies the process of their production and obtaining the oxide itself.

1 cl, 4 dwg, 1 tbl, 4 ex