Materials, Interfaces, and Electrochemical Phenomena

Condensation mechanism and influencing factor of stability of complicated silicic acid system

  1. Liaosha Li*,
  2. Tingting Lu

Article first published online: 20 JUL 2010

DOI: 10.1002/aic.12374

Issue

AIChE Journal

AIChE Journal

Volume 57, Issue 5, pages 1339–1343, May 2011

Additional Information

How to Cite

Li, L. and Lu, T. (2011), Condensation mechanism and influencing factor of stability of complicated silicic acid system. AIChE J., 57: 1339–1343. doi: 10.1002/aic.12374

Author Information

  1. Anhui Provincial Key Laboratory of Metallurgy Engineering and Resources Recycling, Anhui University of Technology, Ma'anshan, Anhui 243002, China

*Anhui Provincial Key Laboratory of Metallurgy Engineering and Resources Recycling, Anhui University of Technology, Ma'anshan, Anhui 243002, China

Publication History

  1. Issue published online: 12 APR 2011
  2. Article first published online: 20 JUL 2010
  3. Accepted manuscript online: 20 JUL 2010 12:00AM EST
  4. Manuscript Revised: 29 JUN 2010
  5. Manuscript Received: 25 NOV 2009

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Keywords:

  • complicated silicic acid system;
  • condensation reaction;
  • gel time;
  • surfactant;
  • pH value;
  • blast furnace slag

Abstract

One complicated silicic acid system, containing Al3+, Mg2+, Fe2+, and Fe3+, is prepared through acidolysis of blast furnace slag. By investigating its gel time concerned with pH value, compared with that of ordinary silicic acid system, it is shown condensation reaction existing and efficiently controlling gelling characteristics of complicated silicic acid system by regulating pH values. The results are validated by FT-IR spectra analysis. With nonionic surfactant employed, the gel time is increased from 11 to 312 h, more suitable to control gel time than anionic surfactant. © 2010 American Institute of Chemical Engineers AIChE J, 2011

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