SCI和EI收录∣中国化工学会会刊

›› 2017, Vol. 25 ›› Issue (10): 1422-1426.DOI: 10.1016/j.cjche.2017.01.004

• Catalysis, Kinetics and Reaction Engineering • Previous Articles     Next Articles

Kinetic analysis of experiment data for the formation of C.I. Acid Blue 9 leuco compound

Rongwen Lu, Ziang Zhao, Xinyu Hao, Beibei Shao, Shufen Zhang   

  1. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
  • Received:2016-09-23 Revised:2017-01-18 Online:2017-01-26 Published:2017-10-28
  • Supported by:
    Supported by the National Natural Science Foundation of China (U1608223, 21576044, 21421005, 21536002) and the Dalian University of Technology Innovation Team (DUT2016TB12).

Kinetic analysis of experiment data for the formation of C.I. Acid Blue 9 leuco compound

Rongwen Lu, Ziang Zhao, Xinyu Hao, Beibei Shao, Shufen Zhang   

  1. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
  • 通讯作者: Rongwen Lu,E-mail address:lurw@dlut.edu.cn
  • 基金资助:
    Supported by the National Natural Science Foundation of China (U1608223, 21576044, 21421005, 21536002) and the Dalian University of Technology Innovation Team (DUT2016TB12).

Abstract: A systematic study of the synthesis of C.I. Acid Blue 9 leuco compound in water is reported. The kinetic analysis of experimental data for the condensation reaction between 2-formylbenzenesulfonic acid sodium and N-ethyl-N-(3'-sulfonic acid benzyl) aniline obtained at four different temperatures ranging between 85 and 100℃ is discussed. It is shown that the reaction followed second-order rate kinetics. The overall rate constant (k) increased with the increase of temperature. On the basis of the value of k, activation energy (Ea) of the reaction was evaluated. Importantly, it is found that reactant concentration has great effect on the formation of C.I. Acid Blue 9 leuco compound, implying that it is not enough to improve the conversion of N-ethyl-N-(3'-sulfonic acid benzyl) aniline by only prolonging reaction time in the late period of the reaction.

Key words: Triphenylmethane dyes, C.I.Acid blue 9 leuco compound, Kinetics, Condensation

摘要: A systematic study of the synthesis of C.I. Acid Blue 9 leuco compound in water is reported. The kinetic analysis of experimental data for the condensation reaction between 2-formylbenzenesulfonic acid sodium and N-ethyl-N-(3'-sulfonic acid benzyl) aniline obtained at four different temperatures ranging between 85 and 100℃ is discussed. It is shown that the reaction followed second-order rate kinetics. The overall rate constant (k) increased with the increase of temperature. On the basis of the value of k, activation energy (Ea) of the reaction was evaluated. Importantly, it is found that reactant concentration has great effect on the formation of C.I. Acid Blue 9 leuco compound, implying that it is not enough to improve the conversion of N-ethyl-N-(3'-sulfonic acid benzyl) aniline by only prolonging reaction time in the late period of the reaction.

关键词: Triphenylmethane dyes, C.I.Acid blue 9 leuco compound, Kinetics, Condensation