METHOD OF PRODUCING COMPLEX PRASEODYMIUM OXIDE, MOLYBDENUM AND TELLURIUM PrMoTeO Russian patent published in 2019 - IPC C01F17/00 C01G39/02 C01B19/00 C30B29/22 C03C1/02 C03C6/00 

FIELD: chemistry.

SUBSTANCE: invention relates to chemistry and relates to synthesis of a complex oxide of praseodymium, molybdenum and tellurium Pr₂MoTe₄O₁₄, which can be used as a component in the mixture for producing praseodymium-containing tellurite-molybdate glasses. Initial components are separately dissolved in distilled water. Initial components used are praseodymium nitrate hexahydrate Pr(NO₃)₃⋅6H₂O, tetrahydrate of ammonium heptamolybdate (NH₄)₆Mo₇O₂₄⋅4H₂O and orthotelluric acid H₆TeO₆. Then obtained solutions are mixed. Obtained mixture is evaporated till dryness. Obtained dry residue is milled and calcined at temperature of 600 °C for 3–5 hours until powder of light-green colour is obtained. At that, weighed portions of initial components of such masses are used so that the ratio of Pr:Mo:Te atoms is equal to 2:1:4.

EFFECT: reduced duration and temperature of synthesis.

1 cl, 3 dwg, 1 tbl, 3 ex