from 235 Extraction from fission products 99 The device of mo and its extraction 99 method of mo

A fission product, 99mo technology, applied in the field of nuclear engineering, can solve problems such as convenience and storage, and achieve the effect of reducing exposure dose, less radioactive waste, and simple operation

Active Publication Date: 2020-08-21
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

The disadvantage of this method is that U exists in the form of a solution, which is not as convenient as storing in solid form

Method used

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  • from <sup>235</sup> Extraction from fission products <sup>99</sup> The device of mo and its extraction <sup>99</sup> method of mo

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[0034] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] Such as figure 1 As shown, the present invention provides a kind of from 235 Extracted from fission products 99 The device of Mo comprises filter bottle 3, feed liquid bottle 5, collecting bottle 6 and vacuum pump 1; Described filter bottle 3 is connected with described collecting bottle 6 by the pipeline with two-way valve 4; Described vacuum pump 1 is connected by having three The pipeline through the valve 2 is respectively connected with the filter bottle 3 and the collection bottle 6 to provide liquid transfer power; the filter bottle 3 is connected with the feed liquid bottle 5 . The filter bottle is a glass filter bottle with a G5 sand core at the bottom. The filter bottle contains at least one layer of glass beads with a diameter of 2-3mm (preferably 3mm). The feed liquid bottle 5 is connected to the filter bottle 3 through a silico...

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Abstract

The invention relates to a device for extracting <99>Mo from a <235>U fission product and a method for extracting the <99>Mo by utilizing the device. The device comprises a filtering bottle, a material liquid bottle, a collecting bottle and a vacuum pump; the filtering bottle is connected with the collecting bottle through a pipeline equipped with a two-way valve; the vacuum pump is respectively connected with the filtering bottle and the collecting bottle through pipelines equipped with a three-way valve to provide power for liquid transferring; and the filtering bottle is connected with thematerial liquid bottle. The method comprises the following steps: (1) adding an alpha-benzoin oxime solution into a target dissolving solution containing <99>Mo, and carrying out a reaction for 10-15minutes to obtain a mixed solution; (2) filtering the mixed solution after the reaction to obtain a precipitate and a filtrate; (3) washing the precipitate after filtering; and (4) dissolving the precipitate with a NaOH solution until the solution is clear and transparent, and collecting the filtrate. The device is simple to operate, and the chemical treatment time is short and is about 1-2 hours,so that illumination time of operators conducting radiation can be remarkably reduced, and the illumination dose of the operators is reduced. When the device is used for separation and fission of the<99>Mo, generated radioactive wastes are few.

Description

technical field [0001] The invention relates to the field of nuclear engineering, in particular to a method suitable for precipitation 235 Extracted from fission products 99 The device of Mo and utilize this device from 235 Extracted from fission products 99 Mo's method. Background technique [0002] 99 Mo is a very important medical radioactive isotope, and its decay daughter nuclide 99m Tc is the most widely used radioisotope in nuclear medicine today and is used worldwide every year 99m Tc-labeled drugs have been used for more than 30 million nuclear medicine imaging diagnoses, accounting for more than 70% of clinical nuclear medicine diagnoses, and can be used for almost all organs and organs such as brain, myocardium, bone, thyroid, lung, liver, gallbladder, kidney, lymph Diagnosis of diseases of tissues. current 99 The main source of Mo is from 235 Extracted from U fission products. Currently, the global annual consumption of fission 99 The amount of Mo is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21G1/04
CPCG21G1/04
Inventor 梁积新吴宇轩沈亦佳于宁文向学琴吴久伟
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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