FIELD: process engineering.
SUBSTANCE: invention may be used in chemical industry. Tap water is fed by pump from tank 1 into tank 2 equipped with mixer for dissolving of crude carbamide. After mixing, solution is forced by pump 5 into tank 4 wherefrom it is fed for electrodialysis cleaning into plant 6. Cleaned carbamide solution is forced from plant 6 into tank 10 equipped with mixer. Antifreeze additives and corrosion inhibitors are also fed into said tank. After complete dissolution, aforesaid solution is fed into finished product tank 8 wherefrom it is fed to dispenser. Said antifreeze additives represent acetous ammonia or ammonia citrate.
EFFECT: efficient leaning, low freezing point.
2 cl, 2 dwg
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