Self-unloading vertical radioactive iodine-131 distillation device

Abstract

The invention provides a self-discharging vertical radioactive iodine-131 distilling apparatus. The production device comprises a motor I, a slide groove, a distilling furnace, an iodine catcher and a controller. The motor I is fixedly connected with the slide groove. The slide groove is connected with the distilling furnace in a sliding mode. The distilling furnace is connected with the iodine catcher through a pipeline. The controller is electrically connected with the motor I, the distilling furnace and the iodine catcher. The self-discharging vertical radioactive iodine-131 distilling apparatus has the automatic distillation residue discharge function, iodine-131 can be efficiently distilled out of activated TeO2, an uncovered target cylinder can be directly placed in a ceramic crucible to be distilled, the per unit yield of the device is remarkably improved, the radioactive contamination risk is lowered, and the radioactivity solid waste yield is decreased. The production device is compact in structure, suitable for the Na131I destructive distillation in a shielding working box with the small effectively operation space, and high in operation stability, convenience and safety.

Description

technical field [0001] The invention belongs to the technical field of radioisotope preparation, and in particular relates to a self-unloading vertical radioactive iodine-131 distillation device. Background technique [0002] The main production method of radioactive iodine-131 is tellurium dioxide (TeO 2 ) and from 235 Extracted from the lobes mixture of U. At present, sodium iodide (Na 131 I) Drugs are mainly derived from TeO irradiated from reactors by dry distillation 2 extraction, while the wet distillation process (including 235 The process of extracting iodine-131 from the split mixture of U) was eliminated due to defects such as low distillation efficiency, complex process, high cost, large amount of waste, and easy pollution. The process of producing iodine-131 by dry distillation is roughly: the activated TeO 2 Pour it into a quartz glass container and place it directly in a distillation furnace for distillation at high temperature (about 750°C). Radioactive ...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the radioactive iodine-131 distillation device in the prior art, there is a small single production capacity, a lot of radioactive waste, and activated TeO 2 The utilization rate of raw materials is not high enough, it is easy to cause radioactive pollution in the workplace and the shortcomings of low work efficiency. The invention provides a self-unloading vertical radioactive iodine-131 distillation device

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