a vertical na 131 i Dry distillation production device

Abstract

The invention provides a vertical type Na131I dry distillation production device which comprises a motor, a sliding chute, a distillation furnace, an iodine catcher and a controller, wherein the motor is fixedly connected with the sliding chute; the sliding chute is slidably connected with the distillation furnace; the distillation furnace is connected with the iodine catcher through a pipeline; and the controller is electrically connected with the motor, the distillation furnace and the iodine catcher respectively. The vertical type Na131I dry distillation production device provided by the invention can be used for producing the medical-grade Na131I from activated TeO2, and can be used for directly placing an uncapped target barrel into a ceramic crucible for distillation, thus obviously enhancing the unit yield of the device and the utilization rate of a raw material and reducing the risk of radioactive pollution and the output of a radioactive solid waste. The vertical type Na131I dry distillation production device provided by the invention is compact in structure, can be suitable for Na131I dry distillation production inside a shielding work box with a small effective operation space and has good stability, convenience and safety in operation.

Description

Technical field [0001] The invention belongs to the technical field of radioisotope preparation, and specifically relates to a vertical Na 131 I Dry distillation production device. Background technique [0002] The main production method of radioactive iodine-131 is the use of distillation from the tellurium dioxide irradiated from the reactor and from the 235 U is extracted from the lobed mixture. Radiopharmaceuticals made from radioactive iodine-131 are widely used in modern nuclear medicine clinical diagnosis and treatment, but sodium iodide (Na 131 I) The radioactive raw materials of medicines and iodine-131-labeled medicines mainly come from tellurium dioxide activated by the irradiation of the reactor. There are two main methods for producing radioactive iodine-131 from activated tellurium dioxide: wet distillation and dry distillation. The process of using wet distillation to produce iodine-131 is roughly as follows: dissolve the activated tellurium dioxide with concentra...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the existence of the radioactive iodine-131 production device in the prior art, the single production capacity is small, the radioactive waste is much, and the activated TeO 2 The utilization rate of raw materials is not high enough, and it is easy to cause radioactive pollution in the workplace and low work efficiency. It can realize the use of natural tellurium dioxide (TeO2) activated by reactor radiation in a shielded work box with a small effective operating space 2 ) high-efficiency production of radioactive iodine-131 that meets medical requirements, and achieves the purpose of greatly improving single production capacity and work efficiency, controlling the risk of radioactive pollution and minimizing the amount of radioactive solid waste. The invention provides a vertical Na 131 I dry distillation production device

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