Time：2023.02.09Browse：1
Hydrofluoric acid is a strong acid, which can react almost with any impurities in the graphite, and graphite has good acid resistance. In particular, it can resist hydrofluoric acid. It determines that graphite can be purified with hydrofluoric acid. The main process of hydrofluoric acid method is mixed with graphite and hydrofluoric acid. The hydrofluoric acid and impurities response generate soluble substances or volatiles for a period of time. After washing and removing impurities, purifying graphite is obtained after dehydration and drying.
Hydrofluoric acid reacts with metal oxides such as CA, Mg, FE, etc. The H2SIF6 produced in the solution is dissolved in the solution, and it can remove impurities such as CA, MG, Fe, and other impurities. Hydrofluoric acid is highly toxic and has serious environmental pollution. It can effectively reduce the amount of hydrofluoric acid with other acids. The purity of hydrofluoric acid method has the advantages of simple process, high product quality, relatively low cost, and small impact on graphite products. However, hydrofluoric acid is highly toxic. During the use process, safety protection measures must be available. It must be discharged out of the wastewater after treatment. Otherwise, it will cause serious pollution to the environment
2023-04-03Graphite is widely used in industrial departments such as the metallurgical industry, forging, machinery and equipment, chemical factories, and other industrial departments. Below, Kobwei's graphite product manufacturer told everyone that the application of graphite products for graphite products.
The effect of expanding graphite on water pollution has a large number of research results. In terms of governing oil and organic pollution in the control of water bodies, expansion graphite is far more effective and economical than ordinary activated carbon now. But expansion graphite is inconvenient to transport and needs to be prepared at the application site. The preparation, use, recycling, and regeneration of expansion graphite environmental protection materia2023-09-25graphite expansion graphite environmental materials
2024-03-19The development of graphite mineral resources is of great significance for promoting economic and social development. However, how to achieve the balance of environmental protection in the development process is an urgent problem to be solved.
Natural scales graphite is a high -quality refractory raw material, but it is difficult to prepare uniform and dense non -fixed refractory materials because the surface of graphite has hydrophobicity. Therefore, the surface of the graphite needs to be modified so that the surface is changed from hydrophobic to hydrophilic, in order to enable graphite to be widely used in refractory materials. Generally speaking, most of the surface modification uses the modified agent to modify the powder. The following introduces a variety of graphite modification methods.First, the wetness of scales graphite and its application limitations. There is no shortage of graphite area, with small surface tension, and about 0.45%of volatile organic objects on the surface, all of which make the wetness of graphite worse. The strong hydrophobicity of the graphite surface makes the fluidity of the pouring materials worse, graphite is easy to reunite, it is difficult to prepare uniform and dense non -fixed -sha2023-07-27One article understands natural scales graphite surface modification methods
2023-03-21Adsorption agent of industrial oil.
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