Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (7): 117-121.doi: 10.3969/j.issn.1000-565X.2010.07.021

• Materials Science & Technology • Previous Articles     Next Articles

Preparation of Ceramics from Desulphurization Slag and Waste Stone Powders

Su Da-gen  Zhao Yong   

  1. Key Laboratory of Specially Functional Materials of the Ministry of Education, South China University of Technology,Guangzhou510640,Guangdong,China
  • Received:2009-09-03 Revised:2009-10-19 Online:2010-07-25 Published:2010-07-25
  • Contact: 苏达根（1948-）,男,教授,博士生导师,主要从事生态环境材料研究. E-mail: dgsu@scut.edu.cn
  • About author:苏达根（1948-）,男,教授,博士生导师,主要从事生态环境材料研究.
  • Supported by:

    广东省产学研项目（2008A007）; 佛山市三水区科技攻关资助项目（2008A012）

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Abstract:

Desulfurization slag and calcareous waste stone powder were used to prepare ceramics,and the product was then characterized by means of XRD and X-ray fluorescence analysis,et al. The results show that the release rate of SO2 is up to more than 77% when only desulphurization slag are added to the raw materials,that the release rate decreases to less than 30% when calcareous waste stone powder and desulphurization slag are both added to the raw material and when the surface is glazed at a sintering temperature decreasing from 1 100 ℃ to 1 050 ℃ and a soaking duration decreasing from 2 h to 1 h,that the calcium in the prepared ceramics mainly exists in the form of CaAl2Si2O8 and CaSO4,and that the product is qualified.

Key words: desulfurization slag, calcareous waste stone powder, glazing surface, ceramics