Abstract：Rare earth elements are widely used in energy-saving and environmental protection, also high-tech manufacturing, it has been a constant trend and the forefront of science and technology. The development of worldwide industrial is of course positively correlated with environmental pollution. When breathing becomes cumbersome, protecting the environment and managing pollutions become so urgent. And now, the development of economic has to rely on such industries as oil, coal, smelting and others, that happen to be the source of air pollution. Therefore, improving the combustion efficiency and cleaning the air has become the top priority about the environmental protection work. Rare earth elements have become the only choice to bear this responsibility, which helps efficient combustion of fossil fuels and catalytic purification of the final product exhaust tail gas, from the beginning to end.
2016, Vol. 23 
