Xylene, mainly in petrochemicals produced by the process of crude oil, which is widely used diluents, printing, rubber and leather industries solvents pigments, paints and the like. As a cleaning agent and degreaser, a component of jet fuel high purity bottled xylene manufacturers, raw materials and intermediate materials and synthetic industrial chemical plants, paper and fabric paint and varnish materials. Xylene pollution caused by mechanical ventilation and ventilation equipment into the atmosphere. A Refinery emissions into the atmosphere as high xylene 13.18 ~ 1145g / h, xylene unit with its production and use of the wastewater discharged into the water, producing one ton of bottled xylene xylene Which is good, general discharge Xylene 300 ~ 1000mg / L 2 tons of waste water. Because xylene in aqueous solution volatile strong trend, it can be considered in the surface water is not persistent pollutants. Xylene in the environment can also be biodegradable, but the speed of this process is much lower than the rate of volatilization. Essential to the air xylene may also be photolysis, which is its major transformation processes. Production Method Editor 1, xylene recovered from the coking by-product. Xylene and benzene production co-products, depending on the boiling point of the components of crude benzene, extracted by distillation fraction boiling range of 135 ~ 145 ℃, was xylene. 2, light gasoline (initial boiling point of about 138 ℃) Platinum restructuring atmospheric distillation method using interception fraction greater than 65 ℃, the first by molybdenum catalyst, catalytic hydrogenation emerge harmful impurities brand bottled xylene manufacturers, then by platinum reforming catalyst, and extracted with diethyl ether glycol solvent, and then by column distillation to give benzene, toluene, xylene and the like products. 3, toluene disproportionation method. This method is in the catalyst, so that a toluene methyl transfer to another toluene to produce benzene and xylene. The reaction is DF-166 catalyst (lack of aluminum-hydrogen mordenite) to restructure toluene (nitration grade) and re-circulation of hydrogen (85% to 90%) for raw materials, the reaction temperature is 400 ± 2 ℃ barrels xylene manufacturers under a pressure of about 2MPa other conditions, the reaction of benzene and xylene. 4, the oil light fraction after mixing benzene hydrogenation refining, catalytic reforming, separation derived xylene. Or coking crude benzol washing, fractionation derived. Industrial barrels xylene manufacturers, Zhongshan barrels xylene manufacturers, Wong Road Chemical provided by Guangzhou Wong Road, Chemical Co. Guangzhou Wong Road, Chemical Co., Ltd. (www.wangluda.com) (www.wangluda.com) strong, credible, in Guangzhou cosmetic raw materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead busy road of chemical into the brilliant and you work for a better future!