In the existing technology, the main used elements are thorium tungsten electrode (containing ThO₂), lanthanum tungsten electrode (containing La₂O₃), cerium tungsten electrode (CeO₂), zirconium tungsten electrode (ZrO₂), and other rare earth tungsten electrodes. All kinds of materials have their advantages and disadvantages. In addition to the shortcoming of radiation, the comprehensive welding properties of rare earth tungsten electrode materials for various units are not comparable to those of thorium tungsten electrode.

Desulfurization process is a necessary process in petroleum refining, which mainly provides protection for subsequent catalysts, because sulfur element is very easy to cause subsequent cracking, catalytic reforming and other acidic catalysts poisoning and rapid deactivation. In addition, reducing the sulfur content in fuel is also conducive to reducing engine corrosion and wear, and improving the quality of petroleum products.

Methyl acetate is an important organic material widely used in the synthesis of acetic acid, acetic anhydride, methyl acetate, ethylene acetate and acetamide.

All-vanadium redox battery is a kind of redox battery which uses vanadium as active material and circulates in liquid state. Both positive and negative active substances are vanadium sulfuric acid solution. Electrode reaction occurs in liquid phase, which greatly reduces the electrochemical polarization. Its rated power and rated power can be designed separately. By changing the electrolyte, instantaneous charging can be achieved, and 100% deep discharge will not damage the battery. Based on the above advantages, it can be widely used in photovoltaic power generation, wind power generation, smart grid, peak valley power, distributed power stations, communication base stations, UPS/EPS, transportation and military fields.

At present, tungsten functionalization of mesoporous carbon is mainly achieved by post-treatment (such as impregnation) of finished mesoporous carbon. The stability of Mesoporous Tungsten oxide/tungsten carbide obtained by this method is poor, and the loss is serious in the reaction process. Moreover, the tungsten species obtained by this method are poorly dispersed and the size distribution of tungsten particles is large, so a new process is needed to improve its shortcomings.

Tungsten oxide, as a semiconductor sensitive material with great research and application prospects, has been widely used to detect various toxic and dangerous gases (such as NO₂, NH₃, etc.). However, the working temperature of tungsten oxide is relatively high (150 ~250 ℃), so scientists and technicians have been devoting themselves to the research of reducing the working temperature of tungsten oxide.

Bismuth tungstate (Bi2WO6) photocatalyst is considered as a potential excellent visible light photocatalytic material because of its unique electronic structure, excellent visible light absorption ability and high organic degradation ability.

Tungsten trioxide (WO₃) is an important photocatalytic semiconductor material, which is widely used in the field of semiconductor heterogeneous photocatalytic technology to solve industrial wastewater and domestic wastewater pollution treatment.

With the rapid development of global economy and the increasing demand for energy and resources, people pay more attention to and invest in the search for renewable and clean energy. Hydrogen energy, as a clean renewable energy, has the advantages of high combustion value, pollution-free, convenient storage and transportation. The photocatalytic decomposition of water to produce hydrogen using solar energy, which has huge reserves and no pollution, provides an ideal method to solve this problem, and has become a hot spot of scientific research.

Nano-cemented carbide not only has high hardness, good wear resistance, but also has high strength and toughness, and has good comprehensive properties. Its application field is expanding constantly. It has been widely used in manufacturing micro-drills, precision tooling and difficult cutting fields. As the basic raw material of nano-cemented carbide production, nano tungsten carbide has been prepared and its properties for the production of nano-cemented carbide. It has a great influence and has almost become the bottleneck in the production of nano-cemented carbide. For this reason, many enterprises and research institutes in many countries have carried out a lot of research.