METHOD OF OBTAINING BARIUM FLUORIDE POWDER, ACTIVATED WITH CERIUM FLUORIDE FOR SCINTILLATION CERAMICS Russian patent published in 2015 - IPC C01F11/22 C01F17/00 C04B35/50 C04B35/553 

FIELD: chemistry.

SUBSTANCE: invention can be used in production of scintillation ceramics with increased light output. Method of obtaining barium fluoride powder, activated with cerium fluoride, includes interaction of ammonium fluoride solution with solution, containing barium nitrate and cerium nitrate. For interaction used is solution, containing barium and cerium ions with their molar ratio from 99.999:0.001 to 99.990:0.010, respectively. After that, sediment is separated, washed, dried and subjected to thermal processing at temperature 550-600°C. Washed residue is re-processed with highly pure hydrofluoric acid.

EFFECT: invention makes it possible to obtain finely disperse water-free powder of barium fluoride, activated with cerium fluoride, with homogeneous chemical and phase composition and low content of activator, hydrogen and carbon admixtures.

3 cl, 9 dwg, 2 tbl, 5 ex