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Novel alkali metal purifying filter and purifying method

An alkali metal and filter technology, applied in the quantum field, can solve the problems of high vacuum pumping unit pollution, low recovery rate of alkali metal cesium, etc., and achieve the effects of improving purity, reducing pollution, and reducing use costs

Active Publication Date: 2016-03-09
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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Problems solved by technology

[0003] In view of this, the present invention provides a novel alkali metal purification filter and purification method, which solves the pollution problem of alkali metal cesium (rubidium) to the high vacuum pumping unit in the distillation purification process and the recovery of alkali metal cesium (rubidium) low rate problem

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  • Novel alkali metal purifying filter and purifying method

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Embodiment Construction

[0025] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] A novel alkali metal purification filter of the present invention comprises filter glass tube 2, steam guide tube 3, first spherical buffer 4, recovery tube 5, hollow glass ball 6, second spherical buffer 8, vacuum pumping System 9 , recovery bottle 11 and still 12 . The filter glass tube 2 is located below the second spherical buffer 8, one end of the steam guiding pipe 3 communicates with the lower end of the second spherical buffer 8, and the other end extends into the bottom of the filter glass tube 2; The second spherical buffer 8 communicates with the vacuum pumping system 9 through the air suction interface 1; the second spherical buffer 8 communicates with the upper end of the first spherical buffer 4 through a horizontal pipeline, and the first spherical buffer The device 4 communicates with the distiller through the recovery pipe 5 placed...

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Abstract

The invention discloses a novel alkali metal purifying filter and a purifying method. The novel alkali metal purifying filter and the purifying method can be used for alkali metal cesium (rubidium) purification. The novel alkali metal purifying filter is characterized in that hollow glass balls internally coated with graphite are arranged in the filter; the functions of absorbing and desorbing the cesium (rubidium) can be achieved under the control of different temperatures; meanwhile, the filter is provided with a cesium (rubidium) recycling device; an alkali metal steam guiding pipe between the recycling device and a glass pipe for filtering is provided with a fine-draw structure, and the cesium (rubidium) left after purification can be recycled and stored conveniently. In the cesium (rubidium) distillation and purification process, the filter is connected between a high vacuum pump set and a cesium (rubidium) source heating and extracting device. By means of temperature control, pollution of cesium (rubidium) steam to a vacuum pump and a recycling pipe can be effectively reduced, impurities in the cesium (rubidium) steam are absorbed, the cesium (rubidium) purity is improved, the cesium (rubidium) can be recycled, and the using cost of the alkali metal is greatly reduced.

Description

technical field [0001] The invention relates to the field of quantum technology, in particular to a novel alkali metal purification filter and a purification method. Background technique [0002] High-purity alkali metal cesium (rubidium) has a large number of applications in quantum technology fields such as atomic frequency standards, magnetometers, and gyroscopes. However, alkali metal cesium (rubidium) has strong chemical reactions with oxygen and water, and it needs to be prepared under high vacuum conditions. . Because alkali metal cesium (rubidium) has fatal pollution to detection instruments, and the recovery rate is low, so the preparation cost is high, especially the preparation of high-purity alkali metal cesium (rubidium) is more difficult, and there is no special purification of high-quality cesium (rubidium) in China at present. rubidium) manufacturers. Through years of systematic research on the purification of cesium (rubidium), we have formed a complete se...

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Application Information

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IPC IPC(8): C22B9/02C22B26/10
CPCY02P10/20
Inventor 翟浩刘苏民陈大勇廉吉庆李得天
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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