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Main categories of rare metals

Release time:

2023-11-30

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Rare metals are generally technically divided into the following five categories based on the physical and chemical properties, occurrence states, production processes and other characteristics of various elements:
rare light metal
Including lithium Li, rubidium Rb, cesium Cs, and beryllium Be, with small specific gravity and strong chemical activity.
Rare refractory metals
Including titanium, zirconium, hafnium, vanadium, niobium, tantalum, molybdenum, and tungsten, they have higher melting points, and the compounds formed with carbon, nitrogen, silicon, boron, etc. also have higher melting points.
Rare dispersed metals (rare dispersed metals)
Including gallium, indium, thallium, germanium, rhenium, selenium and tellurium, most of which are found in minerals of other elements.
rare earth metals
Including scandium, yttrium and lanthanide elements, their chemical properties are very similar and are associated with each other in minerals.
rare radioactive metals
Including naturally occurring francium, radium, polonium and actinium, thorium, protactinium and uranium in actinium series metals, as well as artificially produced technetium, promethium, other elements of the actinide series and elements 104 to 107.
The above classification is not very strict. Some rare metals can be included in both this category and another. For example, rhenium can be classified as a scattered metal or a rare refractory metal.

Rare metal defense battle! ! !

Applications of rare metals

Rare metal defense battle! ! !

Applications of rare metals

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