METHOD OF PRODUCING A SILVER SUSPENSION Russian patent published in 2019 - IPC B22F9/24 C01G5/00 B82Y40/00 

FIELD: technological processes.

SUBSTANCE: invention relates to a method of producing a suspension of silver used in production of aseptic agents and textile products. Method includes the following steps: obtaining a suspension of silver oxalate with concentration of silver oxalate particles of 5–55 g/l by dispersing silver oxalate in a dispersed medium at a temperature of -5 to 0 °C, containing a mixture of a stabilizer and an anhydrous solvent containing ethylene glycol and ethyl alcohol in ratio of 1:1, wherein the content of the stabilizer in the dispersion medium is 1 wt%; obtaining a suspension containing silver nanoparticles and a dispersion medium containing a mixture of a stabilizer and an anhydrous solvent containing ethylene glycol and ethyl alcohol in ratio of 1:1, wherein the content of the stabilizer in the dispersion medium is 1 wt%, and concentration of silver nanoparticles of 5–50 g/l, by adding to obtained suspension of silver oxalate solution of diethylamine in ethyl alcohol, containing 80 wt% of diethylamine and subsequent precipitation with formic acid.

EFFECT: increase in suspension stability time at which no precipitate containing silver particles precipitates in it, and increased time of increasing silver particles size.

1 cl, 4 ex