Radioiodine-131 vapor trapping device

A technology of radioactive iodine and steam, applied in the direction of alkali metal iodide, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of low output and low product concentration, and achieve the effect of safe production

Inactive Publication Date: 2015-04-22
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Abstract
  • Description
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Problems solved by technology

Activated TeO can be loaded due to existing radioactive iodine-131 distillation equipment 2 The amount is small, especially at reactor thermal neutron fluence rates below 1*10 14 n/cm 2 s, the output of radioactive iodine-131 is low, and the volume of alkali absorption liquid added by the existing iodine-131 vapor trapping device is often greater than 10mL, resulting in the final obtained Na 131 I solution product c

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  • Radioiodine-131 vapor trapping device
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Embodiment 1

[0020] figure 1 It is the overall structural block diagram of the radioactive iodine-131 vapor trapping device of the present invention, figure 2 It is a structural schematic diagram of the cold trap in the present invention. exist figure 1 , figure 2 Among them, the radioactive iodine-131 vapor trapping device of the present invention includes cold trap 1, overflow tank 2, lye bottle 3, heater 4, nitrogen bottle 5, freezing liquid storage tank 6, product bottle 7, vacuum pump 8, Its connection relationship is that the cold trap 1 is connected with the overflow tank 2, the lye bottle 3, the heater 4, the freezing liquid storage tank 6, the product bottle 7, and the vacuum pump 8 through pipelines respectively. The lye bottle 3, the heater 4, and the freezing liquid storage tank 6 are respectively connected with the nitrogen bottle 5, and the product bottle 7 is connected with the vacuum pump 8. Such as figure 1 shown.

[0021]Described cold trap 1 comprises U-shaped pi...

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Abstract

The invention provides a radioiodine-131 vapor trapping device which comprises a cold trap, an overflow groove, an alkaline liquor bottle, a heater, a nitrogen bottle, a refrigerating fluid storage tank, a product bottle and a vacuum pump, wherein the cold trap is respectively connected to the overflow groove, the alkaline liquor bottle, the heater, the refrigerating fluid storage tank, the product bottle and the vacuum pump by virtue of pipelines; the alkaline liquor bottle, the heater and the refrigerating fluid storage tank are respectively connected to the nitrogen bottle; and the product bottle is connected to the vacuum pump. The device disclosed by the invention can be used for effectively trapping radioiodine-131 vapor and converting the radioiodine-131 vapor into a Na131I solution which can be more than 10Ci/mL in concentration, so that the device is more conducive to the production of radioactive drugs having high specific activity. The device disclosed by the invention is compact and smart, and is convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of radioisotope preparation, and in particular relates to a radioactive iodine-131 vapor trapping device. Background technique [0002] Radiopharmaceuticals made of radioactive iodine-131 are widely used in clinical diagnosis and treatment of modern nuclear medicine. The main production method of radioactive iodine-131 raw materials is distillation extraction from reactor irradiated tellurium dioxide and extraction from 235 Extracted by distillation from the mixture of lobes of U. The above-mentioned production methods all distill radioactive iodine-131 by heating and absorb it with dilute lye (generally NaOH solution with a concentration less than 0.5mol / L) to obtain raw materials for the production of radiopharmaceuticals. At present, radioactive iodine-131 is mainly distilled and extracted from tellurium dioxide after reactor irradiation by dry distillation. [0003] Documents show that the present inve...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/68C01D3/12
Inventor 刘国平蹇源陈静李兴亮吴川党宇峰牟婉君刘飞余钱红张锐钟文彬魏洪源陈琪萍何佳恒王关全李梅
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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