METHOD OF PRODUCING DRY CONCENTRATE OF AQUEOUS SHUNGITE EXTRACT Russian patent published in 2024 - IPC C02F1/00 

FIELD: water treatment.

SUBSTANCE: invention relates to chemical and physical treatment of water and can be used for production of cosmetic toilet products of special use, premixes for animals, as well as biologically active food additives in the form of alcohol-free beverages and dry compositions. End product obtained by implementing the proposed method can also be used for medical purposes for correcting the status of rare-earth elements in patients with various pathologies. Crushed stone of natural mineral shungite with fraction of 5-20 mm is washed in bidistilled water. Washed crushed stone is infused in natural spring water at ratio of 200 g per 1 l at room temperature for 3 days. After infusion one performs boiling in the same vessel during 15 minutes. Obtained aqueous extract is converted into a dry concentrate by freeze drying in round-bottom porcelain cups with a freezing temperature of not higher than -40 °C and condenser temperature not higher than -70 °C. Process of pouring, freezing and lyophilisation is repeated many times until complete drying. Liquid preparation is prepared from the dry concentrate by way of its dissolution in the required volume of bidistilled water.

EFFECT: high concentration coefficient, high percentage output of rare-earth elements, possibility of quick preparation of a liquid product from the concentrate.

2 cl, 1 ex, 2 tbl