Study on the Transmission and Transformation of the Impurities in the Reductive Decomposition Process of Phosphogypsum
Authors
Bin Zhu, Liping Ma, Dalong Zheng, Guipeng Ma, Yan Lian, Jie Yang
Corresponding Author
Bin Zhu
Available Online June 2016.
- DOI
- 10.2991/mmebc-16.2016.161How to use a DOI?
- Keywords
- Phosphogypsum, reductive decomposition, simulation calculation, FactSage, silicon dioxide.
- Abstract
To enrich the basic theory of the reductive decomposition process of PG(phosphogypsum), emphasis was laid on the exploration of the impact of the main impurities on the process. Firstly, the simulation computation was done on the systems of pure gypsum mixed with coal with or without impurities under nitrogen atmosphere, and the possible reactions in the process were deduced. Secondly, experiments were conducted in a TG-DTA integrated thermal gravimetric analyzer and a tube furnace. The slag and the flue gas from the experiments were characterized and analyzed to verify the accuracy of theoretical calculation. The results show that silicon dioxide can change the decomposition process of PG and finally transform to Ca3SiO5.
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Bin Zhu AU - Liping Ma AU - Dalong Zheng AU - Guipeng Ma AU - Yan Lian AU - Jie Yang PY - 2016/06 DA - 2016/06 TI - Study on the Transmission and Transformation of the Impurities in the Reductive Decomposition Process of Phosphogypsum BT - Proceedings of the 2016 6th International Conference on Machinery, Materials, Environment, Biotechnology and Computer PB - Atlantis Press SP - 767 EP - 773 SN - 2352-5401 UR - https://doi.org/10.2991/mmebc-16.2016.161 DO - 10.2991/mmebc-16.2016.161 ID - Zhu2016/06 ER -