METHOD FOR PRODUCING A WATER TREATMENT CARTRIDGE FOR PREVENTING SCALING Russian patent published in 2022 - IPC B01D39/18 C08G8/22 C02F5/00 

FIELD: food industry.

SUBSTANCE: technical solution relates to the food industry, namely, to treatment of natural or tap water, wherein said treatment leads to the prevention of scaling using a water treatment cartridge. Method for producing the cartridge includes heating and mixing a mixture of water and resorcin, introducing a catalyst, formaldehyde, and polyamines into said mixture. The polyamines are added after introducing the catalyst and formaldehyde and lowering the temperature of the reaction mixture. The resulting reaction mixture is then stirred and held until the solution is turbid, and then poured into a mould; the resulting cartridge with an effective pore size from 0.1 to 1 mcm is held and extracted. Diethylenetriamine and triethylenetetramine are used as polyamines. The polyamines are used both separately and jointly, as a mixture.

EFFECT: effective prevention of scaling at different rates of filtration, production of a cartridge material with uniform pore size distribution.

1 cl, 2 ex, 1 tbl, 3 dwg