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磷石膏还原分解反应热力学分析

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任雪娇, 夏举佩, 张召述. 磷石膏还原分解反应热力学分析[J]. 环境工程学报, 2013, 7(3): 1128-1132.
引用本文: 任雪娇, 夏举佩, 张召述. 磷石膏还原分解反应热力学分析[J]. 环境工程学报, 2013, 7(3): 1128-1132.
shu
Ren Xuejiao, Xia Jupei, Zhang Zhaoshu. Thermodynamic analysis of reductive decomposition for phosphogypsum[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1128-1132.
Citation: Ren Xuejiao, Xia Jupei, Zhang Zhaoshu. Thermodynamic analysis of reductive decomposition for phosphogypsum[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1128-1132.
shu

磷石膏还原分解反应热力学分析

  • 1.

    昆明理工大学化学工程学院,昆明 650500

  • 基金项目:

    国家自然科学基金资助项目(21166012)

  • 中图分类号: X786

Thermodynamic analysis of reductive decomposition for phosphogypsum

  • 1.

    Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China

  • Fund Project:

摘要

  • 摘要: 磷石膏是高浓度磷肥工业排放的固体废弃物,采用HSC Chemistry 5热力学计算软件对焦炭、硫磺、氢气、一氧化碳与磷石膏还原反应进行了对比分析,探索如分解温度、平衡常数、耗能与还原介质的关系。结果表明,不论采用上述何种还原介质,CaSO4还原分解成CaS均比CaO容易进行。
    Abstract: Phosphogypsum was the solid waste discharged from the high concentration phosphate fertilizer industry. Thermodynamic calculation software HSC Chemistry 5 was used to contrast and analysis the reductive reaction of phosphogypsum with coke, sulfur, hydrogen and carbon monoxide. The relationships of reducing agent and decomposition temperature, equilibrium constant and energy consumption were explored. The results showed that with CO as reducing agent, the reducing reaction was easiest and the energy consumption was lowest; whether using the above reducing agent, it was easier for CaSO4 to be decomposed into CaS than into CaO.
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出版历程
  • 收稿日期:  2012-04-05
  • 刊出日期:  2013-03-18
任雪娇, 夏举佩, 张召述. 磷石膏还原分解反应热力学分析[J]. 环境工程学报, 2013, 7(3): 1128-1132.
引用本文: 任雪娇, 夏举佩, 张召述. 磷石膏还原分解反应热力学分析[J]. 环境工程学报, 2013, 7(3): 1128-1132.
shu
Ren Xuejiao, Xia Jupei, Zhang Zhaoshu. Thermodynamic analysis of reductive decomposition for phosphogypsum[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1128-1132.
Citation: Ren Xuejiao, Xia Jupei, Zhang Zhaoshu. Thermodynamic analysis of reductive decomposition for phosphogypsum[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1128-1132.
shu

磷石膏还原分解反应热力学分析

  • 1. 昆明理工大学化学工程学院,昆明 650500
  • 收稿日期:  2012-04-05
基金项目:

国家自然科学基金资助项目(21166012)

摘要: 磷石膏是高浓度磷肥工业排放的固体废弃物,采用HSC Chemistry 5热力学计算软件对焦炭、硫磺、氢气、一氧化碳与磷石膏还原反应进行了对比分析,探索如分解温度、平衡常数、耗能与还原介质的关系。结果表明,不论采用上述何种还原介质,CaSO4还原分解成CaS均比CaO容易进行。

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