Microstructural transformations of two representative slags at high temperatures and effects on the viscosity

Yong Jiang, Xiongchao Lin, Keiko Ideta, Hiromichi Takebe, Jin Miyawaki, Seong Ho Yoon, Isao Mochida

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The transformation of the Si-Al microstructures of slags, which have similar SiO2+Al2O3 and CaO contents but different SiO2/Al2O3 ratios, was quantified using multinuclear SS-NMR. Three kinds of Si Qn microstructures (Q2, Q3, and Q4), where n denotes the number of bridging oxygen linked to other Si atoms for each Q (SiO4) unit, and one Al structure (Al (IV)) were present in both slags. The Q3 percentage in two slags was increased as increase of temperature from 1200 to 1600°C. The transformation of Si-Al microstructures was interpreted by a hypothetic model of cristobalite cluster based on the crystal and Qn structure.

Original languageEnglish
Pages (from-to)1338-1345
Number of pages8
JournalJournal of Industrial and Engineering Chemistry
Volume20
Issue number4
DOIs
Publication statusPublished - Jul 25 2014

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)

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