A kind of method of vacuum distillation purifying metal

A metal purification and vacuum technology, which is applied in the field of vacuum distillation and purification of metals, can solve the problems of long distillation time, difficulty in observing the movement process of metal vapor, and high cost, so as to improve distillation efficiency, achieve good distillation and purification effects, and reduce losses. Effect

Active Publication Date: 2016-06-22
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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Problems solved by technology

[0004] ① Low distillation efficiency and long distillation time;
[0005] ②Metal vapor is in a dispersed state during distillation, the effect of impurity removal is not ideal, and the utilization rate of raw materials is low;
[0006] ③Devices mostly made of metal materials are expensive, and it is difficult to observe the movement process of metal vapor

Method used

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  • A kind of method of vacuum distillation purifying metal
  • A kind of method of vacuum distillation purifying metal

Examples

Experimental program
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Effect test

Embodiment

[0042] Embodiment: Implement three-stage directional distillation to cesium metal

[0043] Such as figure 2 As shown, the flow control directional still is made up of still container 19, distillation tube 23, control rod 26, magnetic substance 25 and magnet 27;

[0044] Wherein, the upper end of the distillation tube 23 is sealed, the lower end of the distillation tube 23 is connected with the still container 19, and a flow control port 20 and a still outlet 21 are arranged at the bottom of the distillation tube 23, wherein the flow control port 20 is located inside the still container 19, and the still The outlet 21 is located outside the still vessel 19; the still inlet 18 is provided on the top of the still vessel 19;

[0045]The control rod 26 is built into the distillation tube 23, and the lower end of the control rod 26 is provided with an outer grinding port, and an inner grinding port is provided at the position where the inner wall of the distillation tube 23 contac...

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Abstract

The invention relates to a method for purifying metals through vacuum distillation, belonging to the field of vacuum metallurgy. According to the method, the grade of distillation can be flexibly increased or decreased according to the purity requirement of the purified metals as required, to obtain metals with different purities; according to the method, a device for purifying metals through vacuum distillation is adopted and consists of a vacuum system, a flow rate-controlled directional distillation system and a control system, a distiller in the device adopts a flow rate-controlled directional distiller consisting of a distiller container, a distillation pipe, a control rod, a magnetic material and a magnet, the closing degree of a ground glass conical valve can be flexibly adjusted by vertically moving the magnet, so that the vacuum degree of a space between the distillation pipe and the control rod is adjusted. The method is excellent in vacuum purifying effect to metals with low boiling point, the purity of 99.9999% can be achieved when a three-grade flow rate-controlled directional distiller is used.

Description

technical field [0001] The invention relates to a method for purifying metals by vacuum distillation, which belongs to the field of vacuum metallurgy. Background technique [0002] The existing various vacuum distillation methods are mainly single-stage vacuum distillation, which removes impurities in the metal to be purified according to the principle of the difference in saturated vapor pressure of the metal. installation. [0003] The existing various vacuum distillation methods mainly have the following problems: [0004] ① Low distillation efficiency and long distillation time; [0005] ②Metal vapor is in a dispersed state during distillation, the effect of impurity removal is not ideal, and the utilization rate of raw materials is low; [0006] ③The devices made of metal materials are mostly expensive, and it is difficult to observe the movement process of metal vapor. [0007] Therefore, there is a need for a vacuum distillation method with high efficiency and goo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/10
CPCY02P10/20
Inventor 马寅光陈江王骥冯焱成大鹏袁征难朱宏伟黄良育郑宁高玮杨军
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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