Method for continuous reduction and ingot casting of germanium dioxide

Inactive Publication Date: 2019-01-11
云南驰宏国际锗业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method for continuous reduction of germanium dioxide ingots, which is used to solve the problem that the existing reduction of ingots takes a long time, labor intensity is high, and production efficiency is low, energy consumption is high, and production capacity cannot be released; And the problem of uneven reduction and incomplete reaction

Method used

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  • Method for continuous reduction and ingot casting of germanium dioxide
  • Method for continuous reduction and ingot casting of germanium dioxide

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Embodiment 1

[0018] An embodiment of the present invention is a method for continuous reduction of germanium dioxide ingot casting, the method comprising the following steps:

[0019] Put the germanium dioxide into the graphite boat and put it into the furnace, wherein the amount of the germanium dioxide loaded in the boat is 70% of the capacity of the graphite boat. Under the hydrogen atmosphere, the graphite boat loaded with the germanium dioxide passes through seven heating Temperature zones, the temperatures of the seven heating temperature zones are: 200°C, 400°C, 500°C, 600°C, 700°C, 800°C, 1000°C; the graphite boat loaded with germanium dioxide is in the seven temperature zones The residence time in the medium is 30min respectively; subsequently, the germanium ingot is obtained by cooling down.

Embodiment 2

[0021] An embodiment of the present invention is a method for continuous reduction of germanium dioxide ingot casting, the method comprising the following steps:

[0022] Put the germanium dioxide into the graphite boat and put it into the furnace, wherein the amount of the germanium dioxide loaded in the boat is 90% of the capacity of the graphite boat. Under the hydrogen atmosphere, the graphite boat loaded with the germanium dioxide passes through seven heating temperature zone, the temperatures of the 7 heating temperature zones are respectively: 400°C, 500°C, 600°C, 700°C, 900°C, 1000°C, 900°C; the graphite boat loaded with germanium dioxide is in the 7 temperature zones The residence time in the medium is 60min respectively; subsequently, the germanium ingot is obtained by cooling down.

Embodiment 3

[0024] An embodiment of the present invention is a method for continuous reduction of germanium dioxide ingot casting, the method comprising the following steps:

[0025] Put the germanium dioxide into the graphite boat and put it into the furnace, wherein the amount of germanium dioxide loaded in the boat is 80% of the capacity of the graphite boat. Under the hydrogen atmosphere, the graphite boat loaded with germanium dioxide passes through 7 heating Temperature zones, the temperatures of the seven heating temperature zones are: 200°C, 450°C, 600°C, 650°C, 750°C, 900°C, 1000°C; the graphite boat loaded with germanium dioxide is in the seven temperature zones The residence time in the medium is 40min respectively; subsequently, the germanium ingot is obtained by cooling down.

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Abstract

The embodiment of the invention discloses a method for continuous reduction and ingot casting of germanium dioxide. The method comprises the following steps of putting the germanium dioxide into a graphite boat, and placing the graphite boat into a furnace; passing the graphite boat filled with the germanium dioxide through seven heating areas in reducing gas atmosphere in sequence, wherein the temperature range of the seven heating areas is 200-1050 DEG C; and then, obtaining germanium ingots after cooling. According to the method, through arrangement of the seven heating areas, the continuous reduction and ingot casting of the germanium dioxide are achieved, and the reduction and ingot casting time is shortened; the labor intensity is low, and the automation degree is high; and the production efficiency and the resistivity of a germanium ingot are improved.

Description

technical field [0001] The invention relates to the technical field of germanium dioxide reduction ingot casting, in particular to a method for continuous reduction of germanium dioxide ingot casting. Background technique [0002] In the existing germanium dioxide reduction ingot casting process, the reduction of germanium dioxide to prepare reduced germanium ingots requires two processes: reduction furnace reduction and ingot casting furnace ingot casting, and can only be reduced first to obtain complete reduction. Germanium powder, and then the reduced germanium powder is sent to the ingot furnace to cast ingots into reduced germanium ingots. In the production process, in order to obtain a reduced germanium ingot, it is necessary to enter and discharge once for the reduction, and once for the ingot to enter and discharge for the ingot. A total of four feeding and discharging operations are required, and each ingot is about 380-450g; from Reduction of germanium dioxide and...

Claims

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Application Information

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IPC IPC(8): C22B41/00C22B5/12
CPCC22B5/12C22B41/00
Inventor 陈知江崔丁方符世继陈元欣彭明清李恒方陈小蕊王庆明彭明师夏冬冬朱家义
Owner 云南驰宏国际锗业有限公司
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