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现代地质 ›› 2008, Vol. 22 ›› Issue (5): 845-851.

• 矿物材料学 • 上一篇    下一篇

高铝粉煤灰烧结反应热力学分析与实验

李歌,马鸿文,谭丹君,邹丹,彭辉,苏双青   

  1. 中国地质大学 矿物材料国家专业实验室,北京100083
  • 收稿日期:2008-06-20 修回日期:2008-09-12 出版日期:2008-10-20 发布日期:2009-11-12
  • 作者简介:李歌,女,硕士研究生,1984年出生,无机非金属材料专业,主要从事矿物材料的研究工作。 Email:jay_vikey@163.com。
  • 基金资助:

    中国地质大学(北京)矿物材料国家专业实验室开放基金课题(2008D001)

Thermodynamic Analysis and Experiments on Sintering Reactions of High Alumina Flyash

LI Ge MA Hong-Wen TAN Dan-Jun JU Dan BANG Hui SU Shuang-Jing   

  1. National Laboratory of Mineral Materials, China University of Geosciences, Beijing100083, China
  • Received:2008-06-20 Revised:2008-09-12 Online:2008-10-20 Published:2009-11-12

摘要:

分别以碳酸钙和碳酸钠为助剂,对高铝粉煤灰在烧结过程中可能发生的化学反应进行研究。基于热力学计算结果,对比了两种工艺的能耗、物耗、温室气体排放量等因素,结合粉煤灰-碳酸钠烧结反应实验,证明以碳酸钠为配料,高铝粉煤灰烧结过程具有一次性资源消耗量少,能耗最低,温室气体CO2排放量最小,且可生产高附加值产品,实现完全清洁生产等优点。因此,选择以碳酸钠为配料分解高铝粉煤灰中的莫来石和铝硅酸盐玻璃相技术路线,具有良好的工业化应用前景。

关键词: 高铝粉煤灰, 碳酸钠, 热力学, 烧结反应

Abstract:

The possible reactions of high alumina flyash with sodium carbonate and calcium carbonate as flux agent were studied during the sintering processes. According to the results of thermodynamic calculations and the flyash-sodium carbonate sintering experiments, contrasting the energy consumption, material resource consumption and the expellant of the greenhouse gas CO2 during the two sintering processes,it demonstrates that the procedure could be the least consumptions of the mineral resources and energy, the least expellant of the greenhouse gas CO2, and that the terminal products with high value could be manufactured when sodium carbonate is taken as the flux agent. It is therefore feasible that the procedure suggested in this paper is hopeful industrialized both in economic benefits and environmental kindness.

Key words: high alumina flyash, sodium carbonate, thermodynamic, sintering process

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