Brief Introduction to the Improvement of Alumina Wear Resistant Pipe
2021年11月12日
Modification of alumina wear-resistant pipes γ- Under high temperature, it will be converted into α- In order to overcome this series of problems, scholars from various countries have conducted research on the modification of aluminum oxide by increasing density, reducing pore structure damage, and deactivating activity. The primary method adopted is to change the preparation method, and to intervene in the preparation process with unchanged additives to select suitable aluminum precursors. The grain size of pseudo boehmite increases continuously with aging time, temperature, and pH value, thereby affecting the transformation of final alumina pores. Li24 (in station contact ta) generally has the following characteristics: it can effectively adsorb certain components of solid substances from gases or liquids.
The pore size and specific ratio of the alumina particles obtained by the different preparation methods can be integrated to produce alumina wear-resistant tubes with different functions. Tea contains a lot of phenolic groups, which can be treated with formaldehyde. Following the principle of phenolic resin reaction, some phenolic groups can react with formaldehyde, generating complex and diverse polyphenolic and polysorbic compounds that can strongly adsorb fluorine ions. The active components of precious metal catalysts are mainly platinum, rhodium, palladium, and rh is primarily used to reduce NO.
The modification of aluminum oxide wear-resistant pipes by alkaline earth metals has also been found to be able to maintain the structure of aluminum, and the alkaline earth metals with unchanged aluminum oxide properties include ba. Due to its low price and abundant natural capital, using it as a fluorinated water treatment agent has a broad and promising application prospect The so-called acid refers to the fact that the removal rate of hexavalent chromium does not change significantly when p is removed, while the removal rate of hexavalent chromium does not change significantly when p8 is removed. Among them, the removal rate of cr6 is well connected when measures are taken within p5. Use equation processing after adsorption and adsorption between. Xu Yingming et al. impregnated coprecipitation and loaded cerium oxide on the simm sieve.
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Electric fusion bricks and clay bricks are both refractory materials and have a wide range of uses in building materials. Today, Yuhua Electric Fusion Technology will introduce their differences to everyone:
Refractory bricks are abbreviated as firebricks. Refractory materials made by firing refractory clay or other refractory materials. Light yellow or brownish in color. Mainly used for building smelting furnaces, capable of withstanding high temperatures ranging from 1580 ℃ to 1770 ℃. Also known as firebricks. Refractory materials with a certain shape and size. According to the preparation process, it can be divided into fired bricks, unburned bricks, electric fused bricks (fused cast bricks), and fire-resistant and insulated bricks; According to shape and size, it can be divided into standard bricks, ordinary bricks, special bricks, etc. It can be used as high-temperature building materials and structural materials for building kilns and various thermal equipment, and can withstand various physical and chemical changes and mechanical effects at high temperatures. For example, refractory clay bricks, high alumina bricks, silica bricks, magnesium bricks, etc.
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