We have adopted the new technique of the Tianjin Petrochemical company. "C10 aromatic hydrocarbon separation technique" Which has won science and technology progress prize given by the Chinese Petrochemical general company. In our factory croaromatic hydrocarbon is used to produced S-high boiling point aromatic hydrocarbon series solvent, homogeneous tetramethylbenzene(1, 2, 4, 5-tetramethylbenzene, petronaphthalene, ortho-xylene, xylo and so on. We can not only make full use of the rawmaterial of Cro aromatic hydrocarbon, but also improve the function of low temeprature of the high boiling point aromatic hydrocarbon solvent beacause of separating homogevous tetramethylbenzene from naphthaline. When it is used as painting solvent. It can improve the flow level and lustre of painting membrane. It is quite different from other high boiling point aromatic hydrocarbon.

In addition, the solvent doesn't contain sulfur, Nitrogen, Chlorine. Arsenis, lend, copper and water, etc. It can be used as high-grade solvent, diluent. Printing ink solvent, farm chemical emuisor and high temperature chemical reaction solvent.

The quality of S-series solvent has reached the same quality standard of the Swasol series solvent of the Japanese MARUZEN company and the Solvesso series solvent of the American EXXON company.