Use of rare earth? Which industries depend on him?
The catalyst with molecular sieve made of rare earth, has the advantages of high activity, good selectivity and strong resistance to heavy metal poisoning, which replaces the aluminum silicate catalyst used in petroleum catalytic cracking process; in ammonia production process, with a small amount of rare earth nitrate as catalyst, the gas volume is 1.5 times bigger than in Ni Al catalyst; synthesis of isoprene rubber and butadiene rubber in the process of using naphthenic acid rare earth aluminum products three kinds of catalyst, the obtained performance is excellent, with less equipment fubberized, stable operation, postprocessing the advantages of short process; composite rare earth oxides can also be used as an internal combustion engine exhaust purification catalysts, cerium naphthenate is also used as a paint drier etc..
Rare earth metal silicide or fluoride, added to steel, to refining, desulfurization, and low melting point of harmful impurities, and can improve the processing performance of steel; rare earth ferrosilicon alloy, rare earth silicon magnesium alloy as spheroidizing agent in the production of rare earth nodular cast iron, nodular cast iron because this is particularly suitable for the production of special the complex requirements of nodular iron castings, are widely used in automobile, tractor, diesel engine and other mechanical manufacturing; rare earth metals added to magnesium, aluminum, copper, zinc, nickel and other non-ferrous alloys, physical and chemical properties of the alloys can be improved, and improve the alloy at room temperature and high temperature mechanical properties.
The rare earth industry "gold", because of its excellent photoelectric magnetic and other physical properties, and other materials composed of new materials, the performance of different varieties, the most obvious function is to greatly improve the quality and performance of other products. For example, the tactical performance of steels, aluminum alloys, magnesium alloys and titanium alloys for tanks, aircraft and missiles has been greatly improved. What's more, rare earth is also a high-tech lubricant for electronics, lasers, nuclear industry, superconductivity, and so on. Once used in military affairs, rare earth technology will inevitably bring about a leap in military technology. In a sense, the US military's partial wars in the cold war, the backward sex control, and the unbridled and open killing of the enemy are due to the superman in the field of rare earth science and technology.
