METHOD FOR BACTERIAL STABILISATION OF AQUEOUS GROUND NATURAL CALCIUM CARBONATE AND/OR PRECIPITATED CALCIUM CARBONATE AND/OR DOLOMITE AND/OR MINERAL COMPOSITIONS CONTAINING SURFACE-MODIFIED CALCIUM CARBONATE Russian patent published in 2014 - IPC A01N31/08 A01N33/08 A01N35/02 A01N35/04 A01N43/80 A01N59/06 A01P1/00 

FIELD: chemistry.

SUBSTANCE: invention relates to biocides. The aqueous mineral composition is stabilised by: (a) adding at least one aldehyde-containing and/or aldehyde-releasing and/or phenolic and/or isothiazoline biocide to said aqueous mineral composition; said mineral containing at least one component selected from: ground natural calcium carbonate, precipitated calcium carbonate, dolomite, surface-modified calcium carbonate, or a mixture thereof; said method comprises a step (b), which may be simultaneous and/or separate relative to step (a), of adding at least one primary alkanolamine with a monoatomic alcohol residue to the aqueous mineral composition; said biocide(s) are added to the aqueous composition in an amount corresponding to a range from 90 to 1350 ppm based on the weight of the aqueous phase of the aqueous composition; the primary alkanolamine(s) with a monoatomic alcohol residue are added to the aqueous composition in an amount corresponding to a range from 600 to 1200 ppm based on the weight of the aqueous phase of the aqueous composition.

EFFECT: invention enables realise said purpose.

17 cl, 11 tbl, 5 ex