METHOD OF RECTIFICATION PURIFICATION OF DIFLUOROCHLOROMETHANE AND DEVICE REALIZING IT Russian patent published in 2020 - IPC F25B43/04 C07C7/04 

FIELD: refrigerating equipment.

SUBSTANCE: invention can be used for regeneration of halons. Diffluochloromethane fractionation purifier comprises rectification column, dephlegmator, condenser, re-cleaning tank and evaporator. Evaporator consists of two interconnected containers, the first of which is the evaporator of the first stage, and the second one—the evaporator of the second stage, which is the bottom of the rectification column. Dephlegmator is located in the upper part of the rectification column. Cooled condenser is connected to a cooled collecting container equipped with a fine filter, outlets of which are directed through shutoff-control valves via liquid into transport container and into reservoir for repeated cleaning, and by steam—through shutoff-control valves to lower part of condenser. Heating and cooling of difluorochloromethane in assembly units for regeneration process is carried out using a water heater, heating coil and chiller.

EFFECT: technical result consists in improvement of cleaning degree at low power consumption, in increase of productivity to industrial level, as well as in reduction of weight and size characteristics.

5 cl, 1 dwg, 1 tbl