IODISED EDIBLE SALT PRODUCTION METHOD Russian patent published in 2020 - IPC A23L27/40 C01D3/12 C01D3/06 

FIELD: food industry.

SUBSTANCE: invention can be used in food industry. Method of iodised edible salt production includes introduction of potassium iodate in brine and treatment of brine with potassium iodate in ultrasound in cavitation mode at ultrasound frequency of more than 18 kHz and intensity of more than 4 W/cm². Time of ultrasonic exposure is selected so that the volume of evaporated brine decreases by more than 2 times when exposed to ultrasound. Ultrasonic treatment is started at temperature of brine differing from boiling point by not more than 30 °C. Then, iodine-containing additive (potassium iodate) and salt crystallized during sonication are mixed with non-iodised salt till concentration of potassium iodate 40 ± 15 mg/kg of salt in terms of on iodine.

EFFECT: proposed method for production of iodised edible salt allows to reduce energy consumption for salt iodization in 3–5 times, to increase shelf life of the obtained product, to increase share of potassium iodate contained inside salt crystals.

1 cl, 1 ex