Hydroxamic acid is a kind of organic compound. It is carboxylic acid derivative substituted by oxime group in carboxylic acid molecule. It is a very weak organic acid. Industrial hydroxamic acid is a reddish brown oily liquid. The collector based on hydroxamic acid has good selectivity, but its collecting ability is slightly lower than oleic acid. However, it is just suitable for fine wolframite floatation. For example, a mine in southern Jiangxi Province used naphthalene phthalate Dihydroxamic Acid as the main collector to recover tungsten slime.

Superconducting nanowire single photon detector (SNSPD) is a kind of highly sensitive photodetector which uses the nonequilibrium Thermo-electronic effect in superconducting nanowire to detect single photon signal. It has the characteristics of low dark count, fast detection speed, wide response spectrum and high efficiency. It is a research hotspot in the field of single photon detection technology.

Tungsten particulate reinforced aluminium matrix composite is a kind of lightweight structural and functional integrated material with high temperature resistance, high strength and high wear resistance. It has great application potential and practical value, and has a wide range of applications in aviation, aerospace, automobile and electronics.

It was found that tungsten-based transition metal catalysts have excellent platinum substitution function. However, the agglomeration of nanoparticles and the existence of low density active centers in the synthesis process still puzzle the synthesis of such materials.

Tungsten trioxide nano-multistage structure refers to nanowires, nanorods, nanosheets and other nanostructures formed by the combination of two or more components. At present, some scholars have prepared corresponding materials by thermal evaporation, electrospinning and other processes, but these preparation methods will involve high temperature, high vacuum, high technical difficulties and other issues, which are contrary to the development of low power consumption.

In recent days, Intel can be said to be sitting on the needle. Since AMD released the Rzen series of processors, AMD has regained a lot of market share from Intel with its advanced multi-core architecture and excellent comprehensive performance. In the face of competitors' catch-ups and upgrades, the toothpaste factory no longer dared to squeeze toothpaste, and sacrificed many techniques at the bottom of the box.

Sulfuric acid and hydrochloric acid are commonly used as catalysts for the synthesis of ethyl acetate. In addition to traditional inorganic acids, there are solid superacids and ionic liquids supported on mesoporous materials. The inorganic acid catalyst corrodes the instrument seriously, and the homogeneous catalytic products are not easy to separate, which is easy to produce waste acid waste liquid and other pollutants. Solid acid also has the disadvantage of serious corrosion to the instrument, and the catalytic activity decreases quickly and the cost is high.

Tungsten metal is widely used due to its high melting point, high modulus of elasticity, good shock resistance and corrosion resistance, high electrical conductivity, thermal conductivity and excellent thermal fatigue resistance, and low expansion coefficient.

Tungsten electrodes are the key materials in inert gas shielded welding and plasma welding, cutting, spraying, melting and special electric light sources. At present, most of them are tantalum tungsten electrodes (including ThO₂) and tantalum tungsten electrodes (including CeO₂). The thorium-tungsten electrode will bring radiological hazard to the environment and human health during its production and use; the thorium-tungsten electrode can replace the thorium-tungsten electrode only in the small-size welding tungsten electrode.

With the development of semiconductor technology, the manufacture of camera sensor technology (CIS: CMOS image sensor) with metal oxide semiconductor technology has become a mainstream process in the field of emerging imaging. Among them, the metal film has a good visible light reflection conduction property, and is widely used as a reflection or isolation layer of incident light in the industry.