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Method and device for extracting high-purity rhenium from tungsten-rhenium alloy

A tungsten-rhenium alloy, high-purity technology, applied in the field of recovery and extraction of sparse and scattered metal rhenium, can solve the problems of lack of treasure and utilization, and achieve the effects of complete exhaust gas collection, full alloy oxidation, and high separation efficiency.

Active Publication Date: 2008-03-26
TSINGHUA UNIV
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  • Abstract
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Problems solved by technology

[0004] my country is a country rich in rare metal resources, but it has not cherished and utilized this resource advantage

Method used

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  • Method and device for extracting high-purity rhenium from tungsten-rhenium alloy

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Embodiment Construction

[0020] 1) Cut a total of 100 grams of tungsten-rhenium waste materials containing about 15% rhenium into small pieces and place them on the quartz boat 4, put the quartz boat 4 containing the materials into the high-temperature zone in the quartz furnace tube 2, place the heat shielding bracket 3 into the mouth of the pipe; the material collection pipe 12 in the low temperature zone is put into the low temperature zone of the quartz furnace tube 2, and the material collection pipe 15 in the cooling zone is put into the cooling collection zone III;

[0021] 2) The mouth of the quartz furnace tube 2 high temperature area is connected to oxygen and connected to the digital gas flow meter A1 in series, and the mouth of the quartz furnace tube 2 cooling area is connected to the tail gas buffer and collection device IV; when the system is running, the inlet oxygen and tail gas buffer and collection are first turned on Device IV; then turn on the circulating cooling water of the cooli...

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Abstract

The present invention is process and apparatus for extracting high purity Re from Re-W alloy, and belongs to the field of rare metal extracting technology. The apparatus of the present invention capable of four parts: an O2 metering device, a zonal heating system, a cooling and collecting zone and a tail gas buffering collector. Re-W alloy is oxidized and separated through air lancing reaction in a tubular oxidizing furnace with different temperature zones, and the Re oxide is heated and reduced in H2 atmosphere to obtain high purity Re powder. The apparatus has integral compact structure, the process has short technological flow, automatic control, well oxidation of the alloy, high separation efficiency and effective collection and utilization of the tail gas, and the present invention is suitable for industrial production.

Description

technical field [0001] The invention relates to the field of recovery and extraction of rare metal rhenium, more precisely, it relates to a method and a device for extracting high-purity metal rhenium from tungsten-rhenium alloy. Background technique [0002] Rhenium (Re) is a dispersed refractory metal with high melting point, high strength and good plasticity. And has excellent mechanical stability. Rhenium has no brittle critical transition temperature, and has good creep resistance under high temperature and rapid cooling and rapid heating conditions, and is suitable for ultra-high temperature and strong thermal shock working environments. The special properties of rhenium and rhenium alloy make it widely used. It has become one of the important new materials in modern high-tech fields such as national defense, aerospace, nuclear energy, electronics industry, chemical industry, and metallurgy. Especially in the aerospace field, the application of super heat-resistant ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B61/00C22B5/00
Inventor 杨海军席小庆李勇
Owner TSINGHUA UNIV
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