Technological theory of nanometer-ZnO production in industry
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Date
2014
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Namibia
Abstract
In terms of chemical engineering theory, the operating domain of nanometer ZnO
production has been analyzed in detail by means of uniform precipitated method.
The reacting system of ZnO production is a complicated system with series, parallel, reversible, and multiphase reactions. The author finds that the independent
reaction number is 6. The free degree of the reactions is 7. The proportional ratio
of reactants is C(CO(NH2)2):C(Zn(NO3)2) 3.5 : 1. The operating domain is illustrated by the proportional concentrations CO(NH2)2: Zn2+ = 1 : 2.5; Zn2+:H2O=1:11; CO(NH2)2:H2O=1:3. The value of pH is key factor of the reaction system and a better pH value is 6.5. Other key factors are temperature and time of the reactions.
Description
Keywords
Nanometer ZnO, Industrial production of nano-ZnO, Chemical equilibrium, Reaction production of ZnO
Citation
Wang, J.L. (2014). Technological theory of nanometer-ZnO production in industry. International Science and Technology Journal of Namibia, 4, 41-50.