METHOD AND DEVICE FOR EVAPORATION OF URANIUM HEXAFLUORIDE FROM CONATINERS

FIELD: chemistry. ^ SUBSTANCE: invention can be used in nuclear technology. Walls of two containers, equipped with inlet and outlet valves, are heated up to 60-150C. The heated collector joins the outlet valve of the first container to the inlet valve of the second container. The second container is supplied with a gas mixture of uranium hexafluoride and nitrogen from the first container. In one of the containers, nitrogen at temperature of 60-180C and pressure of 150 kPa is supplied in alternating pulses. The container is then evacuated to pressure of 50 kPa with 5-10 repetitions. The gas mixture, coming out of the container, is heated to 60-180C. The collector for supplying nitrogen is equipped with an automatic system for supplying and heating the nitrogen. At the end of the process, the container is cooled down to 55C, which is the temperature of its walls and is then dismantled. ^ EFFECT: increased output; complete extraction of un-evaporated residue from the containers; cut in the specific consumption of electrical energy; stable consumption of uranium hexafluoride; elimination of its wastes during dismantling or repair. ^ 3 cl, 1 dwg, 4 ex