(镨(Pr)) Origin and use of rare earth element names
镨(Pr)
About 160 years ago, Swede Mossand discovered a new element from the shackles, but it was not a single element. Mossard discovered that the nature of this element is very similar to that of 镧, and named it "镨钕" . "镨钕" Greek is the meaning of "twin". After more than 40 years, invented the steam lamp cover in 1885, the Austrian Wellsbach successfully separated two elements from the "镨钕", one named "钕" and the other named "praseodymium". This "twin" is separated, and the element of 镨 also has its own vast world of talent. Niobium is a relatively large amount of rare earth element used in glass, ceramics and magnetic materials.
Wide range of applications:
(1) It is widely used in architectural ceramics and daily-use ceramics. It is mixed with ceramic glaze to make color glaze. It can also be used as a subglaze pigment alone. The pigment is light yellow and the color is pure and elegant.
(2) Used to manufacture permanent magnets. The use of inexpensive base metals instead of pure base metals for the manufacture of permanent magnet materials has significantly improved oxygen and mechanical properties and can be processed into magnets of various shapes. Widely used in a variety of electronic devices and motors.
(3) Used for catalytic cracking of petroleum. The preparation of a petroleum cracking catalyst by adding a Y-type zeolite molecular sieve in the form of a ruthenium-rich concentrate can improve the activity, selectivity and stability of the catalyst. China began to use industrial use in the 1970s, and its usage has been increasing.
(4) 镨 can also be used for abrasive polishing. In addition, the use of germanium in the field of fiber is also becoming more widespread.
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Label: Rare earth elements
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