Tungsten carbide is a kind of important transition metal carbides, which has the catalytic properties similar to noble metals. It has shown excellent catalytic performance in oil, gas hydrodesulfurization, denitrification, hydrocarbon isomerization and other reactions, and is the focus of attention.

In recent years, with the improvement of people's living standards, a large number of new decorative materials and luxurious and fashionable modern furniture and other household goods continue to enter the interior, resulting in the increasingly serious indoor environmental pollution. At present, the main indoor pollutants such as formaldehyde, benzene, toluene and other volatile organic compounds (voc) seriously exceed the standard, causing great harm to people's health.

Tungsten metal has a series of excellent properties such as high hardness, high strength, low vapor pressure, good corrosion resistance and high temperature corrosion resistance. The tungsten porous body made from it has excellent dimensional stability and durable life, and has been widely used in the fields of electronics, aviation, weapons and other applications.

SCR denitrification technology, namely selective catalytic reduction technology, is an environmental protection and pollution control measure adopted by many thermal power plants in China. In the presence of oxygen and the role of catalysts, it can preferentially react with NO_x to produce N₂ and H₂O instead of oxidizing with oxygen in flue gas.