The direct experimental observation and solidification mechanism of heavy metals in blast furnace slag glass‐ceramics

Author:

Guo Yuhang1,Du Yongsheng12ORCID,Wang Guangyu1,Xu Yuanjun1,Zhang Hongxia1,Deng Leibo1ORCID,Chen Hua12,Zhao Ming2

Affiliation:

1. College of Science Inner Mongolia University of Science and Technology Baotou China

2. Collaborative Innovation Center of Integrated Exploitation of Bayan Obo Multi‐Metal Resources Inner Mongolia University of Science and Technology Baotou China

Abstract

AbstractGlass‐ceramics with high performance and high crystallinity was produced using rare earth blast furnace slag (REBFS) as the primary raw material, along with composite nucleating agents Fe2O3 and Cr2O3. The migration pattern, distribution characteristics, and solidification properties of heavy metals in glass‐ceramics were investigated by the controlled heat treatment. The findings indicated that the heat treatment temperature has a significant effect on the distribution and color of heavy metals in glass‐ceramic. In the crystallized glass‐ceramic, spinel acts as the crystal core for heavy metal solidification, Cr, Cu, and Mn can exist stably in the spinel by the solid solution. The glass‐ceramic was expected to be used as a decorative building material.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Inner Mongolia Autonomous Region

Publisher

Wiley

Subject

Materials Chemistry,Marketing,Condensed Matter Physics,Ceramics and Composites

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