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High-purity metal purification device and metal purification method

A purification method and high-purity technology, applied in the field of high-purity metal purification devices, can solve the problems of not easy separation, low impurity enrichment effect, remolding of impurity crystal nucleus, etc. High impurity enrichment effect and energy saving effect

Pending Publication Date: 2022-04-08
CNBM CHENGDU OPTOELECTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing ultra-high-purity purification equipment for regional smelting does not have a high effect on the enrichment of impurities, and it is not easy to separate from the metal when the impurities are enriched, and it is easy to cause the reshaping of impurity crystal nuclei in the molten state

Method used

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  • High-purity metal purification device and metal purification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0057] After placing the 5N tellurium raw material in the quartz boat in the quartz tube, after exhausting all the air in the quartz tube, pass in hydrogen for protection.

[0058] A zone melting includes the following steps:

[0059] S1, even leveling: the number of zone melting is 1 time, the zone melting speed is 100mm / h, the width of the melting zone is 120mm, and the gas flow rate is 300ml / min;

[0060] S2, express train: the number of zone melting is 4 times, the zone melting speed is 80mm / h, the width of the melting zone is 100mm, and the gas flow rate is 200ml / min;

[0061] S3. Slow train: the number of zone melting times is 2, the zone melting speed is 60mm / h, the width of the melting zone is 80mm, and the gas flow rate is 200ml / min, thereby obtaining 6N tellurium.

[0062] Secondary zone melting includes the following steps:

[0063] S1, even leveling: the number of zone melting is 1 time, the zone melting speed is 100mm / h, the width of the melting zone is 120mm, a...

Embodiment 2

[0067] After placing the 5N tellurium raw material in the quartz boat in the quartz tube, after exhausting all the air in the quartz tube, pass in argon gas for protection.

[0068] A zone melting includes the following steps:

[0069] S1. Uniformity: the number of zone melting is 1 time, the zone melting speed is 100mm / h, the width of the melting zone is 100mm, and the gas flow rate is 300ml / min;

[0070] S2, express train: the number of zone melting is 4 times, the zone melting speed is 80mm / h, the width of the melting zone is 80mm, and the gas flow rate is 200ml / min;

[0071] S3. Slow train: the number of zone melting is 2 times, the zone melting speed is 60mm / h, the width of the melting zone is 50mm, and the gas flow rate is 200ml / min, so as to obtain 6N tellurium.

[0072] Secondary zone melting includes the following steps:

[0073] S1. Uniformity: the number of zone melting is 1 time, the zone melting speed is 100mm / h, the width of the melting zone is 100mm, and the g...

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Abstract

The invention discloses a high-purity metal purification device and a metal purification method. The high-purity metal purification device comprises a quartz tube with a quartz boat, a resistance wire heater arranged outside the quartz tube, a temperature control unit, a motion driving control unit, a gas flow control unit, a gas detection unit and an Internet of Things control unit. The motion driving control unit comprises a touch screen, a motion driving control unit PLC, a servo controller, a servo driver, a moving part and a grating ruler. A motion driving control unit PLC of the motion driving control unit writes a motion control program signal and transmits the motion control program signal to a servo controller, the servo controller controls a servo driver, and the servo driver controls a moving part to control the speed and the distance of the moving part. According to the purification device for the high-purity metal, the impurity enrichment effect is high during zone melting, impurities are easy to separate out during enrichment, and formed crystal nucleuses are not easy to form in a molten state, so that impurity residues are not easy to cause.

Description

technical field [0001] The invention relates to the field of metal purification, in particular to a high-purity metal purification device and a metal purification method. Background technique [0002] Most metals contain various impurities. When the molten metal containing impurities cools down and solidifies, the distribution of impurities in the solidified crystal is different from that in its melt. Zone smelting uses this principle to Purify metals. If a movable heater is installed along a metal rod, the impurities are concentrated at one end of the metal rod, and the end enriched with impurities is cut off to obtain high-purity metal. This method of purifying metal allows the heater to heat and melt from one end of the rod, and the heater moves forward, and the melting zone also moves forward, while the melting zone leaving the heater gradually solidifies again, and so on until the other end of the rod One end, called a pass. If many passes are made, the process in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B4/08C01B19/02
CPCY02P10/20
Inventor 彭寿潘锦功傅干华覃士敏周贤强王大宽廖玉波南长斌郑林钟光平孙艳容周毅朱兴月叶斌徐宝强余柯良
Owner CNBM CHENGDU OPTOELECTRONICS MATERIAL
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