Production device for preparing radioactive iodine-131 through continuous feeding

A technology for radioactive iodine and production equipment, which is applied in the field of radioisotope preparation, can solve the problems of small processing capacity and inability to continuously feed materials in dry process, so as to reduce unsafe factors, reduce the generation of solid waste, and reduce the dose of personnel exposure. Effect

Active Publication Date: 2020-01-17
NUCLEAR POWER INSTITUTE OF CHINA
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a production device for preparing radioactive iodine-131 by continuo

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Production device for preparing radioactive iodine-131 through continuous feeding
  • Production device for preparing radioactive iodine-131 through continuous feeding
  • Production device for preparing radioactive iodine-131 through continuous feeding

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] Example 1:

[0035] Such as Figure 1-Figure 3 As shown, a production device for continuously feeding radioactive iodine-131 includes a dry distillation furnace 2. The dry distillation furnace 2 includes a heating furnace body 12, and the heating furnace body 12 is provided with an insulation layer, a resistance wire 13 and a thermoelectric Occasionally, the heating furnace body 12 is a rectangular parallelepiped, and the heating furnace body 12 is open front and rear, that is, the front and rear ends of the heating furnace body 12 are provided with furnace covers, and the furnace covers have the function of automatically opening and closing the cover. The controller controls the automatic opening and closing. The resistance wire 13, the thermocouple and the furnace cover are electrically connected to the controller. The heating furnace body 12 is provided with a T-shaped furnace tube 14 which includes a large round tube. The two ends of the big round pipe are respectively...

Example Embodiment

[0044] Example 2:

[0045] Such as Figure 1-Figure 4 As shown, this embodiment is based on embodiment 1. The outlet pipe 18 is connected to the tellurium dioxide trap 3, and the tellurium dioxide trap 3 is connected to the absorption device 4; the tellurium dioxide trap 3 It includes a housing 24, a heating and heat preservation device is provided in the housing 24, and a tellurium dioxide capture coil 23 is provided in the heating and heat preservation device. The tellurium dioxide capture coil 23 has a tubular structure. The tellurium dioxide capture coil 23 is spirally arranged in the housing 24, and the two ends of the tubular structure are respectively connected with the air outlet pipe 18 and the absorption device 4.

[0046] In this embodiment, the working temperature of the heating and heat preservation device is higher than the iodine sublimation temperature and lower than the boiling point of tellurium dioxide. In the heating and heat preservation device, the tellurium ...

Example Embodiment

[0049] Example 3:

[0050] Such as Figure 1-Figure 4 As shown, this embodiment is based on embodiment 1 or embodiment 2. The rear end of the absorption device 4 is connected with an exhaust gas treatment device 5; the exhaust gas treatment device 5 is a four-stage absorption, and the first-stage absorption uses 0.1-1 mol / l The sodium hydroxide solution absorbs iodine vapor, and the second, third and fourth stage absorption all use 0.1-5mol / l sodium hydroxide solution to absorb the tail gas.

[0051] In this embodiment, the tail gas treatment device 5 is an iodine vapor absorption device, which can ensure that the iodine in the iodine-131 tail gas is completely absorbed.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a production device for preparing radioactive iodine-131 through continuous feeding. The device comprises a dry distillation furnace, which comprises a heating furnace body, wherein a T-shaped furnace tube is arranged in the heating furnace body, and comprises a large circular tube, two ends of the large circular pipe are respectively communicated to a gas inlet pipe I anda gas outlet pipe, the gas outlet pipe is connected to an absorption device, a small circular pipe is vertically arranged on the side wall of the large circular pipe, a material boat is placed in thelarge circular tube, and comprises an upper layer and a lower layer, the upper layer and the lower layer are communicated, the upper layer is a melting pool, the lower layer is a waste pool, the melting pool is arranged below the small circular pipe, a feeding device is arranged above the dry distillation furnace, and comprises a feeding funnel, the bottom of the feeding funnel is communicated tothe small circular pipe through a hollow pipe, a feeding valve I and a feeding valve II are respectively arranged at the upper end and the lower end of the hollow pipe, the device further comprises acontrol system, and a controller for achieving automatic control is arranged in the control system. According to the invention, with the production device, the problems that the existing dry process is small in treatment amount and continuous feeding cannot be achieved are solved.

Description

technical field [0001] The invention relates to the technical field of radioisotope preparation, in particular to a production device for continuously feeding radioactive iodine-131. Background technique [0002] Iodine-131 is a very important medical radioisotope, which is mainly used clinically for the diagnosis of thyroid function, hyperthyroidism and the treatment of thyroid cancer metastases. In addition, iodine-131 is also an important raw material for a variety of labeled drugs, which are used for imaging and killing a variety of solid tumor cells in kidney, liver, myocardium, and brain. However, most of the domestic iodine-131 depends on imports at present. [0003] There are two main production methods for iodine-131: one is to use enriched uranium-235 as the target material, through fission reaction 235 U(n,f) 131 1 obtains iodine-131, but this production process has side reactions, produces many impurities, and the separation and purification process conditions...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J19/08C01B7/14
CPCB01J19/08C01B7/14
Inventor 张劲松陈云明罗宁贾致军曾俊杰王定娜孙志中
Owner NUCLEAR POWER INSTITUTE OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap