METHOD OF PRODUCING IODISED TABLE SALT Russian patent published in 2011 - IPC C01D3/06 B01J19/10 

FIELD: chemistry.

SUBSTANCE: invention can be used in the food industry. The method of producing iodised table salt involves adding iodine-containing substances to brine and treating the brine with iodine-containing substances with ultrasound in cavitation mode at ultrasound frequency higher than 18 kHz and intensity higher than 4 W/cm². The ultrasound exposure time is not less than 4 minutes. Ultrasonic treatment begins at brine temperature which differs from boiling point by not more than 30°C. Ultrasonic treatment is carried out and iodine-containing additives are added only to a portion of brine, wherein concentration of iodine-containing substances is not more than 200 mg/kg of salt. Salt which crystallises during ultrasonic treatment and which contains iodine-containing additives is mixed with non-iodised salt until achieving concentration of iodine-containing substances of 40±15 mg/kg of salt. Brine which contains iodine-containing additives can be mixed with brine which does not contain additives until achieving said concentration of iodine-containing substances.

EFFECT: invention reduces power consumption when iodising salt by 3-5 times and prolongs shelf life of the obtained product.

2 cl, 1 ex