Tungsten carbide can be used as a catalyst in the field of chemical catalysis and electrocatalysis because of its platinum like catalysis, and it will not cause CO, H₂S and other gas pollution reactions during the catalytic reaction. But the existing research shows that the catalytic activity of tungsten carbide is less than platinum and other precious metals, thus improve the catalytic activity of tungsten carbide is one of the key issues in the study of WC hot and catalytic materials for industrial applications.

Preparation of ammonium paratungstate by evaporative crystallization is the main method of industrial production of tungsten products. Ammonium paratungstate evaporation crystallization principle is through the use of ammonium tungstate solution itself special nature: ammonium tungstate solution contains more free ammonium, free ammonia is easy to volatilize, ammonium tungstate is very unstable.

Ammonium paratungstate neutralization crystallization method refers to a fixed-form process. In this process, atoms or molecules are highly organized into a structure called a crystal.

Ammonium paratungstate crystals were white and transparent, is a loose and fluidity are better powder material. Ammonium paratungstate English name Ammonium paratungstate, commonly referred to as APT. Ammonium paratungstate for the relevant physical constants, it should include the molecular formula, crystallization temperature, solubility and so on.

Ammonium paratungstate crystals were white and transparent, is a loose and fluidity are better powder material. Ammonium paratungstate English name Ammonium paratungstate, commonly referred to as APT. As a middle product in the production of tungsten products, ammonium paratungstate is one of the main raw materials for the production of tungsten products such as tungsten oxide, tungsten wire, tungsten powder and tungsten carbide powder.

The ITER divertor is a superconducting tokamak can produce large-scale nuclear fusion reactions, commonly known as "artificial sun", is to solve human future clean energy has the potential of scientific project. In this, tungsten filter is an important part of its parts and plays an important role.

Tungstic heteropoly acid generally refers to heteropoly acid and its salts. It is a polyoxometalate metal complex composed of central (Heteropoly) atoms (P, Si, etc.) and coordinated (multi atom W) bridged by oxygen atoms. It can be widely used in homogeneous and heterogeneous catalytic systems.

Ceramic heating substrate is a new generation of new heating element developed in recent years. Because it has the characteristics of environmental protection, high reliability and long life, it is replacing the commonly used PTC heating element containing lead. It has wide market prospect at home and abroad. Therefore, the research on the production technology of high temperature alumina ceramic heating substrate has been paid more and more attention.

Tungsten copper alloy composite material combines the advantages of two kinds of elements W and Cu, has low thermal expansion coefficient, good conductivity, good thermal conductivity and good arc erosion resistance, in mechanical processing, electrical engineering and electronic information field is widely used as electrical contact materials, electrode materials and electronic packaging materials.

Ammonium paratungstate microwave heating sintering technology, refers to ammonium paratungstate in the microwave field to absorb high-frequency microwave energy, then the molecules or atoms produce violent shocks, friction, rotation and collision, the molecular high-speed kinetic energy into heat. Thus achieving ammonium paratungstate heating.

When ammonium paratungstate absorbs enough microwave energy in the microwave field, it can be raised to a certain temperature to reach the synthesis temperature of the corresponding substance. Thus completing the sintering process of ammonium paratungstate. Ammonium paratungstate microwave sintering technology is the use of materials to absorb microwave energy, without heat conduction and the completion of "self-heating." Therefore, microwave heating and sintering can make the whole material quickly and uniformly without temperature gradient phenomenon, so as to achieve the densification sintering. This method can avoid the traditional sintering of ammonium paratungstate pores, cracks and other sintering defects appear.

Ammonium paratungstate microwave sintering technology compared to the traditional high-temperature sintering furnace, has the following characteristics:
(1) The overall uniform heating, no temperature gradient, can improve the material properties.
(2) After the material absorption is not necessarily rapid heating, the maximum heating rate up to 100 ℃ / min, high heating efficiency.
(3) high energy efficiency, green pollution-free.
(4) According to the material medium factor selective heating.
(5) Due to the microwave heating without heat conduction process, the temperature can be appropriate without overheating sintering, can inhibit particle growth.

With the continuous improvement and progress of the microwave heating and sintering technology of ammonium paratungstate, it has been widely used in the preparation of ceramic powder, cemented carbide and cermets. For example, more and more researchers try to use microwave sintering to prepare high-performance cemented carbide due to the better adaptation of the cemented carbide to the microwave field. WC Sintered Specimens WC grains are finer and the Co phase is more evenly distributed than the conventional sintered samples. At the same time ammonium paratungstate samples also have more excellent hardness, resistance to physical and chemical corrosion.