METHOD FOR PRODUCING BIOCIDE Russian patent published in 2011 - IPC A61K33/38 A61K33/34 A61K47/02 C01B33/40 A61P31/02 B82B3/00 

FIELD: medicine.

SUBSTANCE: method for producing biocide consists in Na-form bentonite activation by sodium ions by means of processing with an aqueous solution of sodium chloride followed by chlorine anion removal with washing and filtration of the prepared raw material. Thereafter, the prepared raw material is intercalated by bactericidal metal ions by processing of inorganic salts in aqueous solutions: silver nitrate, copper sulphate, zinc sulphate or nitrate; sodium salts are removed by washing of the biocide product with deionised water; then the product is filtered, dried and grinded to particle size 20-150 nm. The activation and intercalation processes are performed by exposure to ultrasound at frequency 20-50 kHz and intensity 10-100 Wt/cm², and the purification process of the intercalated product from sodium salts is two-staged: at first, the product is decanted, and then washed in deionised water containing 30 "ppm" - 100 "ppm" of an alkaline metal ion complexing agent of crown-ethers of molecular weight 264 and less.

EFFECT: production of biocide exhibiting fungicidal and bactericidal efficacy and used in preparations, compounds, compositions.

6 cl, 6 ex, 1 dwg