Vertical na131i retort production device

Abstract

The invention provides a vertical type Na131I dry distillation production device which comprises a dry distillation device, an absorption tower, a purifier, a vacuum pump and a controller, wherein the dry distillation device is fixedly connected with the absorption tower; the dry distillation device is further sequentially connected with the absorption tower, the purifier and the vacuum pump through a pipeline; and the dry distillation device and the vacuum pump are electrically connected with the controller respectively. The production device provided by the invention can produce medical-grade Na131I products from TeO2 raw materials irradiated by a reactor, and an uncovered target drum (e.g. zirconium alloy target drum) can be directly put into a quartz crucible for distillation, thus greatly improving the single production capacity and raw material utilization ratio, and reducing the radioactive solid waste content and contamination risk. The production device provided by the invention has a compact structure, is suitable for Na131I dry distillation production in a shielded working box with small effective operating space, and has favorable operation stability and safety.

Description

technical field [0001] The invention belongs to the technical field of radioisotope preparation, in particular to a vertical Na 131 I dry distillation production device. Background technique [0002] The main production method of radioactive iodine-131 is TeO irradiated from reactors by distillation 2 and from 235 Extracted from the lobes mixture of U. Radiopharmaceuticals made of radioactive iodine-131 are widely used in clinical diagnosis and treatment of modern nuclear medicine. Sodium iodide (Na 131 I) The radioactive material of drugs and iodine-131-labeled drugs mainly comes from TeO activated by reactor irradiation 2 . from activated TeO 2 There are two main ways to produce radioactive iodine-131 in China: wet distillation and dry distillation. The process of producing iodine-131 by wet distillation is roughly as follows: dissolve the activated tellurium dioxide with concentrated NaOH solution, then add an appropriate amount of concentrated sulfuric acid to neu...

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Problems solved by technology

[0004] In order to overcome the Na in the prior art 131 I Production unit single production capacity is small, radioactive waste is much, 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 vertical Na 131 I dry distillation production device

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