Study on Liquid Phase Ammoniation of Adipic Acid to Adiponitrile

摘要

(1) Macrokinetic equations of ammoniation-neutralization of adipic acid and dehydration were obtained under conditions similar to those used in the industrial practice. The ammoniation- neutralization reaction is of first order to adipic acid concentration for c_B≥3.5 /100, and of second order for c_B ＜3.5 /100. The rate of dehydration extent is of first order. (2) Catalyst H_3PO_4 is to reduce the activation energy of neutralization and dehydration reactions of ADOH and is especially important for the second step of dehydration to produce adiponitrile.