Production of salts
Our nature is rich in salt - under the ground and in water areas. It is mined in various ways. According to the origin and method of extraction, salt is subdivided into stone, evaporation, samochnochnoe and garden.
According to the degree of purification, the salt is produced unrefined (rock salt), purified and clean ("Extra").
Rock salt lies in the bowels of the earth in huge layers - it is the halite mineral from which table salt is produced. Rock salt is mined by mining or quarrying, crushed and washed. The share of extraction of such salt in Russia is almost 50%, the most important field Sol-Iletskoye in the Orenburg region.
Evaporated salt is a product of evaporation of natural brines extracted from the bowels of the earth, or artificial brines obtained by dissolving rock salt in water pumped through boreholes. Brines are purified from impurities and evaporated in open vats or in vacuum apparatus.
Sowing or lake salt is mined from the bottom of salt lakes. In salt water, salt precipitates, forming layers, hence the name - self-salt. The most important deposits are the lakes Baskunchak (Astrakhan region) and Elton (Bashkortostan), the reserves of which can satisfy the needs of the entire population of the Earth for about 1500 years. Lake Elton is unique in its origin, chemical composition and healing properties. Everyone has heard about the miraculous properties of the Dead Sea, but Russia's healing mud and water of Lake Elton are not inferior to the healing factors of the Israeli resort, balneological mud resorts have been created there.
Pool or pool salt is obtained in the southern regions from the water of the oceans and seas, which is diverted to vast areas of artificial pools. Water from the pools evaporates under the influence of solar heat, and salt precipitates.