METHOD OF PRODUCING IODISED TABLE SALT

摘要

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 30C. 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 4015 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