Articles
  • Optimal type and ratio of foaming agent, foaming stabilizer and fluxing agent of foam glass fabricated with red mud and coal gangue

  • Jina Wang, Kaidong Xu*, Zhixin Li, Yilong Yang, Qingxiao Li, Yun Bao, Huan Yang, Lingling Ding, Ruixin Zhang, Yuanyuan Wang and Lan Yao

  • School of Material and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 467036, P. R. China

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In order to effectively reuse red mud and coal gangue, foam glass was successfully prepared by sintering. The foaming of foam glass is ensured by adding foaming agent, foam stabilizer and fluxing agent to the raw materials including red mud, coal gangue and waste glass. Furthermore, the defects in the foam glass are also reduced. The obtained powder was dried at 105 ºC and characterized by XRF, DSC-TG analysis, etc. According to cellular structure, apparent density and water absorption, the optimal type and ratio of foaming agent, foaming stabilizer and fluxing agent were revealed. The results indicate that the optimized formula of foaming agent, foaming stabilizer and fluxing agent is 3% MnO2-2% Na3PO4-2% borax. The foam glass prepared under optimized conditions exhibits uniform porous distribution and suitable pore size with an apparent density of 0.575 g/cm3 and water absorption of 4.61%. The research in this work could establish the technical foundation of red mud-based porous material for industrial production


Keywords: Foam glass, Foaming agent, Foaming stabilizer, Fluxing agent, Optimal type and ratio

This Article

  • 2022; 23(1): 79-85

    Published on Feb 28, 2022

  • 10.36410/jcpr.2022.23.1.79
  • Received on Jan 19, 2021
  • Revised on Jul 28, 2021
  • Accepted on Aug 28, 2021

Correspondence to

  • Kaidong Xu

  • School of Material and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
    Tel : +86 18537505973 Fax: +86 18537505973

  • E-mail: kdxu@hncj.edu.cn