A vertical high-concentration na 131 iSolution production device

Abstract

The invention provides a vertical type production unit for high-concentration Na131I solution; the production unit comprises a lifting platform, a distiller, a feeding platform, an iodine capturing device, a circulating water pump and a controller. The lifting platform is fixedly connected with the distiller; the distiller is respectively connected with the iodine capturing device and the circulating water pump by pipelines; the feeding platform is arranged below the distiller; the controller is respectively connected with the lifting platform, the distiller, the feeding platform, the iodine capturing device and the circulating water pump. The vertical type production unit for high-concentration Na131I solution is capable of automatically discharging distillation residues, or even, directly putting an uncovered target barrel into a ceramic crucible for distillation; the single yield of the unit and the concentration of the Na131I solution can be improved greatly and the radioactive contamination risk and the yield of solid wastes can be reduced. The production unit is compact in structure and applicable to the destructive distillation production for the high-concentration Na131I solution in a shielded working box with smaller effective operating space and is good in operating stability, convenience and safety.

Description

technical field [0001] The invention belongs to the technical field of radioisotope preparation, in particular to a vertical high-concentration Na 131 I solution production 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 iodine-131 eva...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the Na in the prior art 131 The I solution production device can't unload automatically, the unit capacity is small, the product concentration is low, the work efficiency is low, there are many radioactive wastes, the utilization rate of raw materials is not high enough, it is easy to cause radioactive pollution in the workplace and the radioactive iodine trap is large in size. The invention provides a vertical high-concentration Na 131 I solution production device

Images