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Organochlorine intermediates as supporting complete product chain, nitrochlorobenzene in recent years forced the unbalanced development of environmental stress and its downstream products, the urgent need to develop the the novel of chlorobenzene selective catalytic nitration technology, the traditional process of upgrading. The task of this project from the the Henan Cape Chemical Corporation cooperation project \Aims to develop a new type of green catalytic nitration process, the flexibility to adjust the neighbor contrast, flexibility coping nitrochlorobenzene changes in market demand, resolve the traditional mixed acid nitration process equipment corrosion, and serious environmental pollution problems, promote its downstream products Fine has a very important strategic and practical significance. First, chlorobenzene electrophilic substitution reactions characteristics, this paper presents the nitration of chlorobenzene has lactam class of ionic liquids and Triflate class of Lewis acid catalyst of new green technology and related research. Has lactamase and methylbenzenesulfonate Synthesis lactam ionic liquid catalyst p-toluenesulfonic acid, trifluoromethanesulfonic synthesized with zinc metal and zirconium oxychloride trifluoromethanesulphonate as a Lewis acid catalyst, infrared spectroscopy techniques to characterize the structure. Secondly, the 6201 red carrier body as a carrier, homemade chromatographic column packed used in the PEGA based on selection of suitable fixative, using analytical grade chlorobenzene and o-nitrobenzene as an internal standard, curve bit nitrochlorobenzene internal standard. GC9800 gas chromatography, thermal conductivity detector, and determine the appropriate separation conditions. Then, by changing the conditions of the reaction temperature, time, amount of catalyst, etc., the synthesis of two types of catalyst activity and selectivity were compared and found that a product of the catalytic nitration of chlorobenzene in two catalysts only ortho isomers bit nitrochlorobenzene body, no other byproducts, and can be recycled many times. The but trifluoromethanesulfonic zirconium Zr (OTf) 4 having better catalytic activity in the nitration of chlorobenzene and ortho selectivity. By orthogonal test to obtain the optimal process conditions: solvent 1,2 - dichloroethane ,65-68% nitric acid as nitrating agent n chlorobenzene : n nitrate : n Zr (OTf) 4 = 1:1.2:0.2,86 ℃, 5h. Conversion rate reached 87.69% o Comparative 0.64 o Comparative increased by 12.8% than that of the conventional mixed acid nitration process. Finally, under optimum conditions, the nitrification system macrokinetics study. Establish the range of 60-86 ℃ triflate zirconium catalyzed nitration of chlorobenzene system reaction kinetics model based on using multiple nonlinear regression to determine the reaction for the two reactions, the activation energy Ea = 39.83kJ · mol -1 . I.e. nitration kinetics of the system equation is: while the nitrification system of chlorobenzene and nitric progression varies with temperature.
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