ScholarLens Back to search
2010•Ranshao kexue yu jishuRequires access

Kinetic and Thermodynamic Study of ZnCl_2 Volatilizing in Air Atmosphere

Tianhua Yang

Open publisher page 3 citations

Abstract

Aimed at high content of chlorine in MSWI fly ash in China,volatilization of chlorides of zinc(Zn)was studied.Firstly volatilization of zinc chloride(ZnCl2) under air atmosphere was modeled employing Gibbs free energy criterion,then,heating rate influencing ZnCl2 volatilization was studied on the basis of experimental observations by means of a high temperature TG-DTA system. Based on thermodynamic analysis,this paper worked out kinetic models of the volatilization of ZnCl2.The results show that the volatilization process of ZnCl2 is mainly the process of phase change of ZnCl2 crystal and that of considerable creation of zinc oxide(ZnO). As heating rate increases,volatilization curves move forwards higher temperatures,and both volatilization ratio and temperature eigenvalue increase to some degree. A zero-order kinetic model can be used to describe volatilization reaction accurately.

About this research paper

What this paper is about

Aimed at high content of chlorine in MSWI fly ash in China,volatilization of chlorides of zinc(Zn)was studied.Firstly volatilization of zinc chloride(ZnCl2) under air atmosphere was modeled employing Gibbs free energy criterion,then,heating rate influencing ZnCl2 volatilization was studied on the basis of experimental observations by means of a high temperature TG-DTA system. Based on thermodynamic analysis,this paper worked out kinetic models of the volatilization of ZnCl2.The results show that the volatilization process of ZnCl2 is mainly the process of phase change of ZnCl2 crystal and that of considerable creation of zinc oxide(ZnO). As heating rate increases,volatilization curves move forwards higher temperatures,and both volatilization ratio and temperature eigenvalue increase to some degree. A zero-order kinetic model can be used to describe volatilization reaction accurately.

Why it matters

OpenAlex reports 3 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Aimed at high content of chlorine in MSWI fly ash in China,volatilization of chlorides of zinc(Zn)was studied.Firstly volatilization of zinc chloride(ZnCl2) under air atmosphere was modeled employing Gibbs free energy criterion,then,heating rate influencing ZnCl2 volatilization was studied on the basis of experimental observations by means of a high temperature TG-DTA system. Based on thermodynamic analysis,this paper worked out kinetic models of the volatilization of ZnCl2.The results show that the volatilization process of ZnCl2 is mainly the process of phase change of ZnCl2 crystal and that of considerable creation of zinc oxide(ZnO). As heating rate increases,volatilization curves move forwards higher temperatures,and both volatilization ratio and temperature eigenvalue increase to some degree. A zero-order kinetic model can be used to describe volatilization reaction accurately.

Key concepts: Volatilisation, Zinc, Chemistry, Chlorine, Gibbs free energy, Atmosphere (unit), Inorganic chemistry, Thermodynamics

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Kinetic and Thermodynamic Study of ZnCl_2 Volatilizing in Air Atmosphere — Research Paper | ScholarLens