SUBLIMATION STILL Russian patent published in 1999 - IPC

FIELD: processing of sublimable materials, applicable in uranium processes. SUBSTANCE: the still has condensers with process gas inlet and outlet pipe connections, cryogenic refrigerant inlet and outlet pipe connections, pipeline system with stop and control valves and a vessel communicating with the refrigerant source in the region of the refrigerant vapor phase and connected through a control valve to the refrigerant inlet to each condenser. EFFECT: smoother control of the required temperature of cooling of gas mixture, simplified process of refrigerant supply, reduced expenditures connected with manufacture and arrangement of equipment. 2 dwg