METHOD FOR PRODUCING CULINARY SALT Russian patent published in 2017 - IPC C01D3/00 C01D3/06 B01D1/00 

FIELD: food industry.

SUBSTANCE: method for producing culinary salt of brine from rock salt dissolution is described, including the evaporation of said brine in the presence of seeding, with obtaining the evaporated suspension, the classification of the evaporated suspension, washing the salt pulp from gypsum seeding, separating the thickened suspension in the filtering centrifuge, drying the salt, in which the evaporation is carried out at 50-155 °C, and in evaporator buildings calcium sulfate hemihydrate is used as a seeding, for preparing which a part of gypsum slurry, before feeding it to seeding, is heated to a temperature equal to the temperature of the medium in the housing for which the seeding is designed, and then fed to the evaporator housing; the salt pulp is flushed from the gypsum seeding by the initial brine in the slurry of salt crystals, and the salt crystals are additionally washed with the initial brine in a filtering centrifuge.

EFFECT: expanding the brine evaporation temperature range, elongating the inter-washing plant run, reducing the gypsum particles admixture content in the resulting salt.

1 dwg