<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The vaporization of samples of different chemical and phase compositions in the Na2SO4-K2SO4 system was investigated over the temperature range 1100 K–1400 K by the use of Knudsen effusion mass spectrometry. The gaseous species Na(g), Na2SO4(g), K(g), K2SO4(g), SO2(g), O2(g) and NaKSO4(g) were identified in the vapour over the samples investigated. The thermodynamic activities of sulphates in the examined system at 1350 K were obtained, which allowed calculating the chemical composition of the vapours present in the high temperature zone of cement kilns.</p></abstract>

The vaporization of samples of different chemical and phase compositions in the Na2SO4-K2SO4 system was investigated over the temperature range 1100 K–1400 K by the use of Knudsen effusion mass spectrometry. The gaseous species Na(g), Na2SO4(g), K(g), K2SO4(g), SO2(g), O2(g) and NaKSO4(g) were identified in the vapour over the samples investigated. The thermodynamic activities of sulphates in the examined system at 1350 K were obtained, which allowed calculating the chemical composition of the vapours present in the high temperature zone of cement kilns.

Vaporization study of sodium sulphate — potassium sulphate binary system by Knudsen effusion mass spectrometry

Institute of Non Metallic Materials, Clausthal University of Technology, Clausthal-Zellerfeld, Germany

Faculty of Chemistry Wrocław University of Technology, Wrocław, Poland

Department of Inorganic Chemistry, Faculty of Engineering and Economics, Wrocław University of Economics, Wrocław, Poland

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The vaporization of samples of different chemical and phase compositions in the Na2SO4-K2SO4 system was investigated over the temperature range 1100 K–1400 K...

Vaporization study of sodium sulphate — potassium sulphate binary system by Knudsen effusion mass spectrometry

Publié en ligne: 27 déc. 2011

Pages: 77 - 85

DOI: https://doi.org/10.2478/s13536-011-0016-6

Mots clés
sulphates vaporization, high temperature mass spectrometry, thermodynamic activities, clinker burning

© 2011 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Vaporization study of sodium sulphate — potassium sulphate binary system by Knudsen effusion mass spectrometry

Publié en ligne: 27 déc. 2011

Pages: 77 - 85

DOI: https://doi.org/10.2478/s13536-011-0016-6

Mots cléssulphates vaporization, high temperature mass spectrometry, thermodynamic activities, clinker burning

© 2011 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
sulphates vaporization, high temperature mass spectrometry, thermodynamic activities, clinker burning