JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2017, Vol. 47 ›› Issue (2): 100-105.doi: 10.6040/j.issn.1672-3961.0.2016.050

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Experimental research on the manufacture of chlorine dioxide by sodium chlorite and hydrochloric acid at low concentration

MO Zhengbo1, HU Songtao1*, HU Dedong2   

  1. 1. School of Science, Qingdao University of Technology, Qingdao 266033, Shandong, China;
    2. College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
  • Received:2016-02-01 Online:2017-04-20 Published:2016-02-01

Abstract: The reaction rate of sodium chlorite was studied at various temperatures and molar concentrations of chlorite and hydrochloric acid at low concentrations. The reaction rate law was established, and macro kinetics formula was obtained. Reaction rates had been found as 1 and 1.39 apparent reaction order with respect to NaClO2 and hydrochloric acid respectively when the chloride dioxide was prepared at low concentrations of sodium chlorite and hydrochloric acid. The temperature dependence of the reaction was also investigated and pre-exponential Arrhenius parameter as well as activation energy were determined. The theoretical basis was laid for the reactor design and further development and application of the new technique. This study provides a theoretical basis for the design of chlorine dioxide generator.

Key words: low concentration, kinetics, apparent reaction order, sodium chlorite(NaClO2), chlorine dioxide(ClO2), activation energy

CLC Number: 

  • TQ110
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