Investigation of Al2O3 and Fe2O3 transmission and transformation during the decomposition of phosphogypsum

Jie Yang; Bin Zhu; Liping Ma; Hongpan Liu

doi:10.1016/j.cjche.2018.09.023

Your Location：

Home >

Browse articles >

Investigation of Al₂O₃ and Fe₂O₃ transmission and transformation during the decomposition of phosphogypsum

Chemical Engineering Thermodynamics | Updated：2026-01-06

- Investigation of Al₂O₃ and Fe₂O₃ transmission and transformation during the decomposition of phosphogypsum
- Investigation of Al₂O₃ and Fe₂O₃ transmission and transformation during the decomposition of phosphogypsum
- 中国化学工程学报（英文版） 2019年27卷第5期页码：1125-1131
- Affiliations：
  
  1. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology,Kunming,China,650500
  2. School of Environmental Science & Engineering, Huazhong University of Science & Technology,Wuhan,China,430074
  3. College of Materials and Chemical Engineering, Chongqing University of Arts and Sciences,Chongqing,China,402160
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.09.023
  中图分类号：
- 纸质出版：2019
- Accepted：
Scan QR Code
Jie Yang, Bin Zhu, Liping Ma, 等. Investigation of Al₂O₃ and Fe₂O₃ transmission and transformation during the decomposition of phosphogypsum[J]. 中国化学工程学报（英文版）, 2019,27(5):1125-1131. DOI: 10.1016/j.cjche.2018.09.023.

O
Jie Yang, Bin Zhu, Liping Ma, 等. Investigation of Al₂O₃ and Fe₂O₃ transmission and transformation during the decomposition of phosphogypsum[J]. 中国化学工程学报（英文版）, 2019,27(5):1125-1131. DOI: 10.1016/j.cjche.2018.09.023. DOI：

O DOI： 10.1016/j.cjche.2018.09.023.

摘要

Abstract

Phosphogypsum (PG) is a solid waste produced in the phosphate fertilizer industry and is environmentally harmful. The decomposition of PG to recycle calcium and sulfur is a proper way to reutilize PG. Current work aims at enriching the basic theory of coal decomposition process of PG. The emphasis was laid on the exploration of impact of main impurities on the process. On the other hand

according to Reaction Module

Equilib Module

and Phase Diagram Module of FactSage

the simulation computation was done on the systems of pure gypsum mixed with coal

with or without impurities for avoiding other impurities interference. Later

possible reactions in the process were deduced. Additionally

experiments were conducted in a TG-DTA integrated thermal gravimetric analyzer and a tube furnace. The products from the experiments were characterized and analyzed to verify the accuracy of theoretical calculations. The results showed that these impurities can change the decomposition process of PG. For example

aluminum oxide was transformed to calcium sulfoaluminate

while iron oxide was transformed to dicalcium ferrite. Furthermore

the results help to further improve the basic theory of phosphogypsum decomposition.

关键词

Keywords

references

浏览量

169

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

Thermodynamic properties and reaction mechanism of coal reductive decomposition phosphogypsum to prepare CaO and SO2

Study of defluorination by thermal treatment of phosphogypsum under steam atmosphere

Study on synergistic leaching of potassium and phosphorus from potassium feldspar and solid waste phosphogypsum via coupling reactions

Copper slag assisted coke reduction of phosphogypsum for sulphur dioxide preparation

Thermochemical decomposition of phosphogypsum with Fe-P slag via a solid-state reaction