There are many specific examples of the application of ammonium metatungstate in the ceramic industry. Here are some detailed examples:
Preparation of honeycomb ceramics
Honeycomb ceramics are widely used in modern industry, especially in automobile exhaust purification and industrial catalysis. In order to further improve the performance of honeycomb ceramics, scientists introduced ammonium metatungstate (AMT) powder.
Ammonium metatungstate powder can greatly increase the specific surface area of honeycomb ceramic products, provide more active sites for the reaction, and thus improve the reaction efficiency. Specifically, the addition of ammonium metatungstate can increase the specific surface area of honeycomb ceramics, which helps to make the gas-liquid distribution more uniform and reduce the bed resistance. In addition, ammonium metatungstate powder can also reduce the volume expansion effect of honeycomb ceramics, making it more suitable for use in high-temperature environments.
Preparation of porous honeycomb ceramic catalysts
Ammonium metatungstate (AMT) can be used as an active component to prepare a porous honeycomb ceramic catalyst with a high specific surface area. This catalyst can better adapt to application conditions with frequent temperature changes, high nitrogen oxide concentration, high thermal stability, and high specific surface area.
During the preparation process, titanium dioxide, montmorillonite and α-alumina are used as carriers, and ammonium metatungstate, ammonium metavanadate, cerium nitrate and palladium acetate are used as active components. After mixing, aging, kneading, molding, drying and roasting, it is made.
Improve the hardness and brightness of ceramics
Industrial-grade ammonium metatungstate (such as that supplied by Henan Chenqi Chemical Products Co., Ltd.) can be used in catalysts for alloy steel, glass and ceramics to increase their hardness and brightness. This high-content ammonium metatungstate (99%) can play a key role in the manufacturing process of ceramic products by precisely controlling the addition amount.
Environmental protection and safety
Although specific environmental protection and safety data are not mentioned in the reference articles provided, ammonium metatungstate, as an inorganic compound, is generally considered to be non-toxic and harmless under normal use and handling. However, relevant environmental protection and safety regulations must still be followed during the production process to ensure the environmental protection and safety of the production process.
The application of ammonium metatungstate in the ceramic industry is mainly reflected in improving the performance of honeycomb ceramics and porous ceramic catalysts, increasing the hardness and brightness of ceramic products, etc. At the same time, in order to ensure the environmental protection and safety of the production process, relevant regulations and standards should be followed.
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