DESUBLIMATION PLANT Russian patent published in 2000 - IPC

FIELD: equipment for successive desublimation and cleaning of uranium hexafluoride from highly volatile admixtures by vacuum distillation; chemical industry and non-ferrous metallurgy. SUBSTANCE: proposed plant includes cooling unit with desublimable agent, vacuum collector for distillation of highly volatile gases and reservoirs, process gas and heat-transfer agent inlet and outlet branch pipes and process monitoring units. Plant is equipped with two-chamber glove box with table top between chambers; table top is provided with openings for reservoirs. Arranged in upper chamber are heater, fan for circulation of air in box, thermal shield mounted in spaced relation to walls of chamber and units for gripping the reservoirs which are connected with weighing unit. Lower chamber is provided with hatches for placing the reservoirs in cooling unit mounted vor vertical shift. Thermal shield is made in form of two-section drum. Cooling unit is made in form of Dewar flask. EFFECT: increased productivity; enhanced economical efficiency and operational reliability; high operational safety. 3 cl, 6 dwg