97久章草在线视频播放_精品精品国产91免费观看_国产日韩欧美区二区东京热_中国无码特黄毛片视频_2020免费a片在线观看_忘忧草社区在线www_真人无码精品免费视频_狠狠色综合婷婷网_亚洲尤物精品久久_不卡无码人妻一区三区

Metal smelting is the process of changing metal from a combined state to a free state. The reduction reaction of carbon, carbon monoxide, hydrogen and other reducing agents with metal oxides at high temperature is carried out to obtain the metal simple substance.

Metal smelting is the process of changing metal from a combined state to a free state.

Common methods:

The reduction reaction of carbon, carbon monoxide, hydrogen and other reducing agents with metal oxides at high temperature is carried out to obtain the metal simple substance.

Domestic prospects:

There are more than 200 enterprises engaged in rare earth mining, smelting and separation in China. They have been able to produce more than 400 kinds and nearly 1000 specifications of rare earth products, such as single rare earth oxide, single rare earth metal, rare earth salts, rare earth alloys, rare earth functional materials, etc., and they are continuously extending to high added value, refined, deep processed products and downstream application products. With the rapid development of China's new materials, military industry, aerospace, new energy vehicles and other industries, rare earth metal smelting industry has a bright future.

Reprint statement:

This article is reprinted on the Internet for the purpose of transmitting more information, which does not mean to agree with its views or to confirm the authenticity of its content. If the reprinted works infringe the author's right of signature, or have other damages such as copyright, portrait right, intellectual property rights, etc., which are not intentionally done by the website, they will be corrected immediately after receiving the notice from the relevant obligee.