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Device and method for purifying mercury

A technology of a crucible and a closed shell, which is applied in the field of mercury purification devices, can solve the problems of affecting the saturated mercury vapor pressure of energy-saving fluorescent lamp tubes, affecting the physical light excitation energy of photoluminescence, and affecting the output of luminous flux, and achieves simple structure, low cost, The effect of easy operation

Active Publication Date: 2012-02-29
保山鑫隆电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second situation is: physical and chemical interaction with metallic mercury to generate metallic amalgam, which consumes metallic mercury continuously
After reaching a certain level, it will definitely affect the saturated mercury vapor pressure in the energy-saving fluorescent tube, affect the light excitation energy in the physical process of photoluminescence, seriously affect the luminous flux output, and cause serious light decay.
The third case is: with oxygen (O 2 ) combined to form oxide particles, all of which will be deposited on the surface of the fluorescent powder in the lamp tube, which will blacken the tube wall and affect the luminous flux output, resulting in light decay

Method used

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  • Device and method for purifying mercury
  • Device and method for purifying mercury

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] a. Install the fixed arm 7 in the airtight casing 4, install the heat insulating cup 5 on the fixed arm 7, place the refrigeration material in the heat insulating cup 5, put the purification crucible 11 into the airtight casing, and the outer wall of the purification crucible 11 and the The refrigeration material 6 is in contact; the refrigeration material: dry ice is currently used, and liquid nitrogen or compressed air can also be used;

[0034] b. Install the outgoing tube lifting mechanism 1 outside the airtight casing 4, install the outgoing tube 9 on the outgoing tube lifting mechanism 1, insert the bottom end of the outgoing tube 9 into the purification crucible 11, and connect the connection soft on the middle section of the outgoing tube 9 Pipe 8, the other end of the connecting hose 8 is connected with a mercury absorption pipe 10, and the other end of the mercury absorption pipe 10 is connected with a mercury bottle 13;

[0035] c, in the purifying crucible 1...

Embodiment 2

[0043] a. Install the fixed arm 7 in the airtight casing 4, install the heat insulating cup 5 on the fixed arm 7, place the refrigeration material in the heat insulating cup 5, put the purification crucible 11 into the airtight casing, and the outer wall of the purification crucible 11 and the Refrigeration material 6 is in contact; dry ice is currently used, liquid nitrogen or compressed air can also be used;

[0044] b. Install the lead pipe lifting mechanism 1 outside the airtight casing 4, install the lead pipe 9 on the lead pipe lifting mechanism 1, insert the bottom end of the lead pipe 9 into the purification crucible 11, and connect the connection soft on the middle section of the lead pipe 9. Pipe 8, the other end of the connecting hose 8 is connected with a mercury absorption pipe 10, and the other end of the mercury absorption pipe 10 is connected with a mercury bottle 13;

[0045] c, in the purifying crucible 11, add 5kg purity grade to be the mercury liquid to be pu...

Embodiment 3

[0053] a. Install the fixed arm 7 in the airtight casing 4, install the heat insulating cup 5 on the fixed arm 7, place the refrigeration material in the heat insulating cup 5, put the purification crucible 11 into the airtight casing, and the outer wall of the purification crucible 11 and the Refrigeration material 6 is in contact; dry ice is currently used, liquid nitrogen or compressed air can also be used;

[0054] b. Install the outgoing tube lifting mechanism 1 outside the airtight casing 4, install the outgoing tube 9 on the outgoing tube lifting mechanism 1, insert the bottom end of the outgoing tube 9 into the purification crucible 11, and connect the connection soft on the middle section of the outgoing tube 9 Pipe 8, the other end of the connecting hose 8 is connected with a mercury absorption pipe 10, and the other end of the mercury absorption pipe 10 is connected with a mercury bottle 13;

[0055] c, in the purifying crucible 11, adding 5kg purity grade is the me...

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Abstract

The invention discloses a device and a method for purifying mercury. The device comprises a fixed arm arranged on the inner wall of a closed shell, wherein an air nozzle is formed on the closed shell; a heat-insulating cup is fixedly arranged on the fixed arm; a purification crucible is arranged in the heat-insulating cup; a refrigeration material is arranged between the outer wall of the purification crucible and the inner wall of the heat-insulating cup; a crucible lifting mechanism is arranged below the purification crucible; a lifting rod is arranged on the crucible lifting mechanism; thetop end of the lifting rod butts against the bottom end of the purification crucible; a transfer pipe is inserted into the purification crucible; the top end of the transfer pipe is connected with a lifting mechanism of the transfer pipe; a connection hose is connected with the middle section of the transfer pipe; the other end of the connection hose is connected with a mercury absorbing pipeline; the other end of the mercury absorbing pipeline is connected with a mercury containing bottle; and an air exhaust interface is formed on the mercury containing bottle. Due to the adoption of a crucible descending method, compared with the conventional purification technology such as vacuum distillation, acid-base washing and the like, the device and the method have the advantages of good purification effect, simple equipment method, low cost and the like.

Description

technical field [0001] The invention discloses a device for purifying mercury, and also discloses a method for purifying mercury. Background technique [0002] Mercury is a silver-white liquid metal, often referred to as "mercury", and is the only metal that exists in a liquid state in nature at room temperature. The density of mercury is high (13.6g / cm 3 ), low melting point (-38.87°C), and boiling point of only 357°C. It has important uses in chemical industry, electrical appliances, instrumentation, medicine, metallurgy, military industry and new technologies. [0003] Mercury is one of the raw materials for the preparation of important infrared semiconductor materials MCT. At present, mercury, tellurium and cadmium are made into Hg at home and abroad. 1-x Cd x Te (MCT) crystals are then made into MCT infrared detectors, such as satellites, missiles and various infrared remote sensing systems. With the continuous improvement of the performance level of the device, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B43/00
Inventor 柳祝平黄小卫
Owner 保山鑫隆电子科技有限公司