METHOD FOR PRODUCING DOUBLE YTTRIUM SODIUM PHOSPHATES DOPED WITH RARE EARTH ELEMENTS Russian patent published in 2023 - IPC C01B25/445 C01B25/45 C09K11/70 C09K11/71 C09K11/77 

FIELD: chemical industry.

SUBSTANCE: production of double yttrium sodium phosphate doped with a rare earth element, the composition of NaY_xLn_1-xP₂O₇ (where x=0.01-0.10) used in the chemical industry, in particular for obtaining phosphors of a wide range action spectrum. A mixture of yttrium oleate, sodium oleate, tributyl phosphate, a REE precursor in a molar ratio of Na:Y:Ln:P=1:0.90-0.99:0.1-0.01:2.14 is dissolved in an alcoholic solution of rosin, and heat treatment at a temperature of 60°C and subjected to pyrolysis at a temperature of 400-600°C for 1 hour.

EFFECT: simplification of the production of double yttrium sodium phosphate doped with a rare earth element, the composition of NaY_xLn_1-xP₂O₇ (where x=0.01-0.10), while more accurate introduction of certain dopant concentrations to enhance the properties of phosphors.

3 cl, 2 dwg, 8 ex