A large amount of blast furnace slag will be discharged in the process of blast furnace ironmaking. If not properly treated, it will occupy land, pollute the environment and cause waste of resources. Blast furnace slag contains valuable metals such as titanium, silicon, aluminium and calcium. It can be separated, extracted and processed into chemical products by appropriate methods. It can make rational use of industrial waste resources and solve environmental pollution problems.

SCR denitration technology is a necessary means for power plants to achieve ultra-clean emissions. Catalysts, as a core part of SCR denitration technology, lose their activity due to wear or blockage during operation. Some of the regenerable catalysts can be reused after regeneration, while the catalysts that cannot be regenerated face the situation of rational utilization and disposal.

Nitrogen oxides (NOx) are important atmospheric pollutants that can cause environmental problems such as acid rain and photochemical smog, as well as direct damage to the human respiratory system.  In addition, it also has an important contribution to the increasingly serious ash pollution in our country.  Therefore, effective control of NOx emissions is a major strategic need in China.

Tungsten is China's advantageous resource. China's reserves and consumption rank first in the world. However, the high value-added high-end products of tungsten products are monopolized by foreign companies, especially tungsten heating elements and supports used in high temperature environments. Mainly relying on imports, domestic imitation products are poor in thermal stability, easy to deform, short in life and limited in application.

Bismuth tungstate (Bi₂WO₆) is a typical n-type semiconductor formed from octahedral WO₆ and Bi₂O₂ layers. Bi₂WO₆ has excellent chemical properties, unique ferroelectric properties, catalytic properties and magnetic susceptibility of non-linear dielectrics. Bi₂WO₆ is a good visible-light photocatalyst material.

Nano tungsten trioxide powder is an important industrial raw material, which can be used to prepare nano-tungsten powder and nano-tungsten carbide powder. In addition, nano WO₃ has a strong ability to absorb electromagnetic waves. It can be used as a good absorbent material in the utilization of solar energy and an important invisible material in the military.

Tungsten tailings are solid waste discharged from tungsten-bearing minerals in tungsten ores. China's tungsten resources have very low taste and few rich ores, and only 20% of the tungsten grade (WO₃) is greater than 0.5%. As a result, a large number of tungsten tailings are produced in the process of beneficiation.

As a phase change compound, vanadium dioxide (VO2) undergoes a transition from a high temperature tetragonal phase to a low temperature monoclinic phase at around 68 ° C. 

Nitrogen oxides (NOx) are important atmospheric pollutants that can cause environmental problems such as acid rain and photochemical smog, as well as direct damage to the human respiratory system. In addition, it also has an important contribution to the increasingly serious ash pollution in our country. Therefore, effective control of NOx emissions is a major strategic need in China.

Ceramic material is one of the most promising materials because of its excellent properties such as high temperature resistance, corrosion resistance and wear resistance. However, the brittleness of ceramic materials has been restricting its further development.