Kinetics Of The Hydrolysis Of 3-bentene Nitrile In Hydrochloric Acid Solutions

3-Butenoic acid is an important organic chemical raw materials and intermediates, 3-butenoic acid was synthesized by hydrolysis of allyl cyanide using the catalyst of hydrochloric acid. First the concentration of allyl cyanide, temperature, cosolvent and hydrochloric acid concentration were studied, the best synthesis conditions were decided. Then hydrolysis kinetics of allyl cyanide were studied under the process conditions of the research, and the reaction rate constants and active energy were simulated; finally based on the the kinetic parameters, the volume of reactor was designed from the standing of simulation, providing a basis for the production of industry.The optimum technological conditions were dedided by examining the various process conditions on the allyl cyanide hydrolysis reaction, the results as follows:allyl cyanide initial concentration of 0.50mol·L-1, a temperature of 80℃, the concentration of hydrochloric acid 5.0mol·L-1, the ratio of ethanol:water of 1:1Through kinetic studies, the results showed that the reaction of a serial reaction, while the hydrochloric acid concentration has a great influence on the hydrolysis reaction rate constant:when the concentration of hydrochloric acid was lower than 5.0mol·L-1, the relationship between the constant velocity was k1<k2; the concentration of hydrochloric acid was higher than 6.0mol·L-1, the constant velocity was k1>k2 and activation energy decreased.Based on the kinetic data, production capacity, reactor volume of the various process conditions were studied, the results show: when 3-butene nitrile concentration 0.50 mol·L-1, hydrochloric acid concentration 5.0 mol·L-1, reaction temperature of 353.15K, the volume of the reactor is the most economical.