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Mineral Processing Characteristics of Rare Metals
Category： Industry Information
2024-01-31 10:07
Rare metals generally refer to metals that are small in nature, scattered or difficult to extract from raw materials. The name is not all due to their low abundance in the crust, but some rare metals in the crust of the storage state is more dispersed, or found later, or more difficult to make, so its production and application are late. In history to give people the concept of "rare", it is called rare metal and still in use today.
Rare metals are mainly used in the manufacture of special steel, super hard alloy and high temperature resistant alloy, in the electrical industry, chemical industry, ceramic industry, atomic energy industry and rocket technology.
The name of rare metals has a certain relativity. With the extensive research on rare metals, the discovery of new sources of production and new extraction methods and the expansion of their application scope, the boundary between rare metals and other metals will gradually disappear. For example, the content of some rare metals in the earth's crust is more than that of copper, mercury, cadmium and other metals.
Some rare metals are similar in physical-chemical properties and are not easily separated into single metals. In the past, it was made and used very little, so it was called rare metal. In the 19th century, there was the word rare elements, which was named rare metal in the 1920 s. Rare metals were developed relatively late, so they are sometimes called new metals. Since the Second World War, due to the development of new technologies, the increase in demand, the rapid development of research and application of rare metals, new metallurgical processes continue to appear, and the production of these metals has gradually increased. Rare metals are no longer rare. The metals included in rare metals are also changing. For example, titanium is increasingly used in modern technology and its output is increasing, so it is sometimes included in light metals.
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