Preparation of synthetic rutile from high titanium slag using microwave heating

Xiaoying Zheng, Guo Chen, Jin Chen, Jinhui Peng, C. Srinivasakannan, Rongsheng Ruan

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

In this work, we demonstrate a novel synthesis of synthetic rutile from high titanium slag. This rutile TiO2was obtained by a simple one-step microwave roasting route. The influence of microwave roasting temperature and duration on the phase transformation of high titanium slag has been assessed. X-ray diffraction (XRD) results indicate that the intensity of anosovite (Fe3Ti3O10) phase, which were the major phase of high titanium slag of carbon thermal reduction of ilmenite ores, decreased rapidly while the peaks for rutile TiO2phase increased with increase in the microwave roasting temperature. The scanning electron microscope (SEM) images revealed formation and the particle-size distribution of rutile TiO2phase. Based on XRD and SEM analysis, confirmed the dependence of phase structure, composition and crystallite size on the process conditions of microwave roasting.

Original languageEnglish (US)
Pages (from-to)308-315
Number of pages8
JournalPhase Transitions
Volume91
Issue number3
DOIs
StatePublished - Mar 4 2018

Keywords

  • Microwave heating
  • high titanium slag
  • phase transformation
  • rutile TiO
  • structural performances

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