BISMUTH GERMANATE-SILICATE PRODUCTION METHOD Russian patent published in 2020 - IPC C30B29/32 C30B29/34 C30B29/68 C04B35/493 C04B35/626 C01G17/00 C01G29/00 

FIELD: chemistry.

SUBSTANCE: invention relates to chemistry and can be used to produce a metastable compound with Bi₂GeO₅ crystal structure with the addition of silicon oxide (SiO₂) without changing the crystal structure of the material. Method of producing germanate-silicate of bismuth involves preliminary mechanical mixing of initial powders: bismuth oxide Bi₂O₃ – 50 mol%, germanium oxide GeO₂ – 10–49 mol% and silicon oxide SiO₂ – 10–40 mol%, heating the obtained mixture in a platinum crucible to 1,100–1,200 °C is cured in this temperature range for 15–60 minutes, after which the obtained melt in the crucible is removed from the furnace and cooled in air.

EFFECT: laminar materials with a crystal structure of Auervillius are obtained, free from extraneous impurity phases.

1 cl, 10 dwg