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Extraction and purification technique for producing iodine-131 using homogeneous solution-type reactor

A technology of nuclear reactor and aqueous solution, which is applied in the field of production of medical radionuclides, can solve the problems of unrealizable distillation method and large volume of fuel solution, etc.

Active Publication Date: 2009-07-01
NUCLEAR POWER INSTITUTE OF CHINA
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Problems solved by technology

Used to produce medical 131 I product all utilizes distillation, and the fuel solution volume (about 100L) of homogeneous aqueous solution nuclear reactor is big, and distillation can't realize

Method used

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  • Extraction and purification technique for producing iodine-131 using homogeneous solution-type reactor
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  • Extraction and purification technique for producing iodine-131 using homogeneous solution-type reactor

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Embodiment Construction

[0022]The present invention will be described in detail below in combination with laboratory research and bench simulation tests.

[0023] liquid phase 131 I extraction experiment at first carries out the selection research of exchanger, promptly researches nitric acid system ( C HNO 3 = 0.1 - 0.5 mol / L ) in the adsorption performance of the exchange agent for iodine and select the desorption conditions, and then study the uranyl nitrate system ( C HNO 3 = 0.1 - 0.3 mol / L , Cu=50mg / mL) exchanger is to the extraction performance of iodine, and the iodine in the experiment uses non-radioactive NaI and NaIO 3 , the concentration of iodine in the adsorption solution in the experiment...

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Abstract

The invention belongs to technology of producing medical radioactive nuclide, and in particular relates to a process for extracting and purifying iodine-131 through a homogeneous aqueous solution nuclear reactor. The process comprises the following steps: adsorbing iodine-131 is from a bulk fuel solution after the reactor operates by an aluminum oxide extraction column or a hydrous zirconium oxide extraction column; and then cleaning the extraction column by using diluted HNO3, H20, NH3.H20; desorbing the iodine-131 on the extraction column by an NH3.H20 or NaOH solution; and finally, separating and purifying the desorbed iodine-131. The yield of the I obtained by the process is more than 50 percent, and purity of the I meets the requirement of a medical NaI solution.

Description

technical field [0001] The invention belongs to the production technology of medical radionuclides, and in particular relates to an extraction and purification process for producing iodine-131 by using a homogeneous aqueous solution nuclear reactor. Background technique [0002] Iodine-131 is an important medical radionuclide. It is the earliest and most isotope used in nuclear medicine treatment. The use of cloned antibodies in the treatment of tumors has further promoted the application of iodine-131, so the market demand for iodine-131 has gradually increased. [0003] Usually iodine-131 uses the neutron activation method ( Te <mprescripts / > <none / > 130 ( n , r ) Te <mprescripts / > <none / > 131 → ...

Claims

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Application Information

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IPC IPC(8): C01B7/14B01D59/00
Inventor 李茂良程作用邓启民柴德安李海颖冯义红李明起张劲松陈云明
Owner NUCLEAR POWER INSTITUTE OF CHINA
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