What's the use of rare earth?
Rare earth materials are used as the key to many major weapons systems, it is also a lot of sophisticated industrial essential raw materials, rare earth elements have electric, magnetic, optical, biological and other properties, is an important basic material information technology, biological technology, energy technology and other high technology fields and national defense construction, at the same time on the transformation of some traditional industries, such as agriculture, chemical industry, building materials and other plays an important role
At present, rare earth has been widely used in metallurgy, petroleum, chemical, textile, medicine, agriculture and other dozens of industries. For example, rare earth steel can significantly improve the wear resistance, corrosion resistance and toughness of steel; rare earth aluminum wire rod can improve the strength and conductivity at the same time reduce the fineness of aluminum; rare earth pesticide in fruit, can kill the pests, but also can improve the fruiting rate; rare earth compound fertilizer can improve soil structure, and can improve the output of agricultural products; rare earth catalyst for China's oil refining industry, cost less than 100 million yuan, but the gasoline and light oil output efficiency many times.
Is the chemistry of rare earth elements in the periodic table lanthanides (La) cerium, lanthanum, praseodymium (Ce) (Pr), neodymium (Nd), promethium (Pm), samarium (Sm) and europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium, holmium (Ho (Dy)), ER (Er), (Tm), thulium ytterbium lutetium (Yb), (Lu), and 15 with lanthanide two elements closely related to scandium (Sc) and yttrium (Y) a total of 17 kinds of elements known as rare earth elements (Rare, Earth). Rare earths (RE or R). Rare earth (rare, earth) has "industrial vitamins" laudatory name. Now it has become a very important strategic resource. Rare earth oxide refers to the elements in the periodic table of atomic number from 57 to 71 of the 15 Lanthanide Oxides, as well as with the lanthanide elements similar to the chemical properties of scandium (Sc) and yttrium (Y) oxides of 17 elements. Rare earth elements have been widely used in the fields of petroleum, chemical, metallurgy, textile, ceramics, glass, permanent magnet materials, with the continuous progress of science and technology breakthrough and application technology, rare earth oxide value will become more and more large.
