The common decomposition methods of scheelite concentrate include acid method and alkali method. At present, with alkali method is relatively common, but recently, in view of the high phosphorus content of scheelite, many scholars have put forward the theory and method of phosphoric acid decomposition, and in general, the benefits of scheelite phosphate extraction method improve a lot.

With the development of China's manufacturing industry, the thirst for ultrafine tungsten powder has been greatly stimulated. Ultrafine tungsten powder is the main raw material for the direct production of ultrafine tungsten carbide powder. In the existing market, the price of high performance ultrafine tungsten carbide powder is about 1 to 2 times that of ordinary micron scale tungsten carbide powder, and the cost of production is basically the same. Therefore, the production of ultrafine tungsten carbide powder is an effective way to improve the added value of tungsten raw materials.

Organic amine tungstate, molecular formula is 5(N₂H₅)_2`O₁₂WO₃ (called self reductive tungstate, Auto Reducing Tungstate, as abbreviated as ART). Ultrafine tungsten powder can be prepared by hydrogen reduction by ART. In a solution containing tungstate root, the formation of ART is based on the following reaction:

Cerium tungsten alloy wire is a kind of electrode material has broad application prospects, compared with the traditional thorium tungsten wire, tungsten cerium has electronic work function, low high emissivity, high luminous efficiency, low voltage and other advantages, the most important thing is also no radioactive pollution in the electronic emission tube, argon arc welding and other aspects of the future to replace thoriated tungsten alloy wire is represent the general trend.

Photo-driven photocatalytic reaction is considered as one of the most promising strategies to solve the current energy and environmental problems. Photocatalytic technology is a synthesis of light and catalytic words, refers to the presence of light and catalyst in the chemical reaction. When used as a photocatalyst, tungsten oxide can not only degrade various organic pollutants, but also can be used for water oxidation, pyrolysis water and carbon dioxide reduction.

Tungsten oxide is one of the most studied n-type semiconductor photocatalysts and can be widely used in organic dye degradation, water oxidation, water cracking and carbon dioxide reduction. Tungsten oxide materials have a narrower band gap of about 2.2-2.8 eV, which is affected by morphology and stoichiometric properties.

Tungsten oxide ultrathin nanosheets were successfully stripped by liquid phase stripping method and used for the study of electrochromic properties. The nanosheet thickness of only 1.4 nm, size of 500 nm. Access to different voltages, tungsten oxide thin nanosheets in the colorless and dark blue reversible conversion between the color. The research focuses on the electrochromic properties of tungsten oxide ultrathin nanosheets and bulk tungsten oxide.

Sub-stoichiometric tungsten oxide (WO_3-x) is a tungsten oxide structure containing many oxygen defects in the crystal lattice. Partial depletion of oxygen in tungsten oxide affects its electron band structure and increases its conductivity. Tungsten oxide reduction reaction is usually accompanied by structural changes.

Research on hydrated tungsten oxide dates to the 1940s. Up to now, there are four types of hydrated tungsten oxides that are commonly found in the world at present depending on the type of water they contain: WO₃ · 2H₂O, WO₃ · H₂O, WO₃ · 0.5H₂O and WO₃ · 0.33H₂O. Due to the different crystalline water, there is a clear difference between the crystalline structures of the different hydrous tungsten oxides. Tungsten dioxide dihydrate has a layered structure which, in common with monoclinic tungsten oxide, has the structural unit consisting of tungsten oxide octahedra.

In the field of hard alloy, coarse grain cemented carbide has less structural defects, high hardness, low micro strain and a series of advantages, so it is widely used in rock drilling tools, drilling tools, stamping die, wear resistance and corrosion resistance, high temperature and high pressure parts, metal pressure processing tools, steel rolling, hard roll ring the field of materials etc..