The Application and Development of Di-methylphenol

Di-Methylphenol (Dcmx) is an important kind of fine chemical raw material and key midbody for many substances, which is widely used in pesticide, resin, spice, dye, antioxygen, polymerization inhibitor and inhibitor and antibacterial agents in the research field and other industries. It can be called DCMX in short. It has five kinds of isomers, of which uses, poisonousness and degree of contamination are different. So the methods of Dichloroxylenol Producer have spectrophotometry and fluorescence method which can only measure its total quantity. The differences of geometric isomer are not obvious that it is difficult to do fractionation detection.

In the following paragraph, they would be introduced briefly. Firstly, the 2,4-Dichloro-3,5-Xylenol is a kind of important chemical raw material to produce phenolic resin, condensation agent, medicine, sanitizer, solvent, pesticide and lubricating oil. In general, it can be extracted from coal tar, technical xylenol and other organics. Since the 1960s until now, it has adopts the methods of separation and purification such as rectification, azeotropic and extractive distillation, crystallization, complexation, chromatographic separation, recrystallization and absorption successively. At present, the synthesis of 2,4-dichlorro-3,5-dimethylphonol is made through the process of sulfonation, salt precipitation, alkali fusion and acidification based on dichloromethyl phenol.

Secondly, the 3,5-Dimethyl-2,4-Dichlorophenol is a kind of organic synthetic raw material. It is colorless columnar crystal solving in ethyl alcohol and organic solvent. Its melting point is seventy five 75℃. And its boiling point is 211.2℃. It is widely used in descendens blood fat drugs and midbody of vitamin. In addition, it is also used in producing resin, medicine, spice, dye, sanitizer and stabilizer.

Thirdly, 133-53-9 di-methylphenol is a kind of organic raw material, which present acicular crystal. Its melting point is 68℃, and boiling point is 219℃. It can slightly soluble in water. And it can dissolve in ethyl alcohol and sodium hydroxide solution. It is mainly used to produce pesticide with high efficiency and low toxic as well as corrosion remover. In addition, it can be used to produce cold rolling oil additives to increase service life. Nowadays, the demands have increasing more and more. But the yield has reduced annual year in the world. And the yield is much less in the domestic which is difficult to meet the market needs.

With the rapid development of di-methylphenol market, core producing technology application and development would become the focus of attention. It is critical to enhance research direction, processing equipment, technology application and trend for improving product technology specification and the market competition. It also has significance for the chemical project.