Paper Title:
Study on the Kinetics of Phosphor-Gypsum Pyrolysis
  Abstract

In this paper, an Infrared Sulfur Analyzer is set to measure the desulphurization degree during thermal decomposition of phosphor-gypsum, which provides a much quick, convenient, continuous and accurate method. It might be considered as an effective way to study kinetics of phosphor-gypsum (or phosphogypsum) thermal decomposition (or pyrolysis). With the help of this method, the desulphurization degree and desulphurization rate of broadly constituted phosphor-gypsum samples in the temperature range of 1250-1400°C were studied. The experimental results show that the desulphurization degree increase with the rising of temperature in the range of 1250-1300°C quickly, however, this increase is not obvious when the temperature is above 1300°C. Besides, the corresponding regression equations are obtained. The decomposition degree of phosphor-gypsum could be judged according to the regression equations mentioned above.

  Info
Periodical
Advanced Materials Research (Volumes 306-307)
Chapter
Chapter 10: Environmental and Green Materials
Edited by
Shiquan Liu and Min Zuo
Pages
1477-1483
DOI
10.4028/www.scientific.net/AMR.306-307.1477
Citation
M. K. Zhou, G. L. Ying, B. X. Li, T. Xie, "Study on the Kinetics of Phosphor-Gypsum Pyrolysis", Advanced Materials Research, Vols. 306-307, pp. 1477-1483, 2011
Online since
August 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xing Fu Song, Jin Wang, Xiang Tian Wang, Jian Guo Yu
Abstract:Magnesium chloride hex-ammoniate (MgCl2·6NH3) is an intermediate to produce anhydrous magnesium chloride (MgCl2) by method of reaction...
61
Authors: Kui Chen, Rui Chen Yang, S.W. Cheng
Abstract:The thermal decomposition kinetics and thermal stability of poly (methyl methacrylate) (PMMA) and PMMA/ montmorillonite (MMT) nanocomposites...
1366
Authors: Pilaiwan Chaiwang, Benjapon Chalermsinsuwan, Pornpote Piumsomboon
Chapter 1: Advanced Composites, Special Materials and Technologies, Applied Materials
Abstract:In this study, non-isothermal kinetic methods for the decomposition of the adsorbed CO2 on pure sodium hydrogen carbonate...
40