Study of the oxygen reduction of low valent titanium in high titanium slag by microwave rapid heating

Yiheng Li; Guo Chen; Jinhui Peng; C. Srinivasakannan; Rongsheng Ruan

doi:10.1016/j.powtec.2017.04.027

Study of the oxygen reduction of low valent titanium in high titanium slag by microwave rapid heating

Yiheng Li, Guo Chen, Jinhui Peng, C. Srinivasakannan, Rongsheng Ruan

Bioproducts and Biosystems Engineering

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

Synthesis of rutile TiO₂ from high titanium slags by using sodium based microwave roasting-phosphoric acid leaching-microwave calcination was investigated in the present. The results were characterized by XRD, SEM, FT-IR and Raman spectroscope, respectively. XRD results showed that anosovite phase in high titanium slags transferred into rutile phase after microwave processing. SEM images indicated that a short rod-like structure of rutile was observed on the sample after experiment. FT-IR spectra displayed that absorption band at 515.73 cm^− 1, blue-shifted to 547.54 cm^− 1, indicated that the crystal structure has changed. Raman spectrum showed that low-valent titanium at 148.8 cm^− 1 and 651.4 cm^− 1 is transformed into rutile TiO₂. Based on the achieved results, this method can be applied to produce rutile TiO₂ from high titanium slags.

Original language	English (US)
Pages (from-to)	318-321
Number of pages	4
Journal	Powder Technology
Volume	315
DOIs	https://doi.org/10.1016/j.powtec.2017.04.027
State	Published - Jun 15 2017

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Publisher Copyright:
© 2017

Keywords

Crystal transition
High titanium slag
Low-valent titanium
Microwave heating
Rutile TiO

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title = "Study of the oxygen reduction of low valent titanium in high titanium slag by microwave rapid heating",

abstract = "Synthesis of rutile TiO2 from high titanium slags by using sodium based microwave roasting-phosphoric acid leaching-microwave calcination was investigated in the present. The results were characterized by XRD, SEM, FT-IR and Raman spectroscope, respectively. XRD results showed that anosovite phase in high titanium slags transferred into rutile phase after microwave processing. SEM images indicated that a short rod-like structure of rutile was observed on the sample after experiment. FT-IR spectra displayed that absorption band at 515.73 cm− 1, blue-shifted to 547.54 cm− 1, indicated that the crystal structure has changed. Raman spectrum showed that low-valent titanium at 148.8 cm− 1 and 651.4 cm− 1 is transformed into rutile TiO2. Based on the achieved results, this method can be applied to produce rutile TiO2 from high titanium slags.",

keywords = "Crystal transition, High titanium slag, Low-valent titanium, Microwave heating, Rutile TiO",

author = "Yiheng Li and Guo Chen and Jinhui Peng and C. Srinivasakannan and Rongsheng Ruan",

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year = "2017",

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day = "15",

doi = "10.1016/j.powtec.2017.04.027",

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T1 - Study of the oxygen reduction of low valent titanium in high titanium slag by microwave rapid heating

AU - Li, Yiheng

AU - Chen, Guo

AU - Peng, Jinhui

AU - Srinivasakannan, C.

AU - Ruan, Rongsheng

PY - 2017/6/15

Y1 - 2017/6/15

N2 - Synthesis of rutile TiO2 from high titanium slags by using sodium based microwave roasting-phosphoric acid leaching-microwave calcination was investigated in the present. The results were characterized by XRD, SEM, FT-IR and Raman spectroscope, respectively. XRD results showed that anosovite phase in high titanium slags transferred into rutile phase after microwave processing. SEM images indicated that a short rod-like structure of rutile was observed on the sample after experiment. FT-IR spectra displayed that absorption band at 515.73 cm− 1, blue-shifted to 547.54 cm− 1, indicated that the crystal structure has changed. Raman spectrum showed that low-valent titanium at 148.8 cm− 1 and 651.4 cm− 1 is transformed into rutile TiO2. Based on the achieved results, this method can be applied to produce rutile TiO2 from high titanium slags.

AB - Synthesis of rutile TiO2 from high titanium slags by using sodium based microwave roasting-phosphoric acid leaching-microwave calcination was investigated in the present. The results were characterized by XRD, SEM, FT-IR and Raman spectroscope, respectively. XRD results showed that anosovite phase in high titanium slags transferred into rutile phase after microwave processing. SEM images indicated that a short rod-like structure of rutile was observed on the sample after experiment. FT-IR spectra displayed that absorption band at 515.73 cm− 1, blue-shifted to 547.54 cm− 1, indicated that the crystal structure has changed. Raman spectrum showed that low-valent titanium at 148.8 cm− 1 and 651.4 cm− 1 is transformed into rutile TiO2. Based on the achieved results, this method can be applied to produce rutile TiO2 from high titanium slags.

KW - Crystal transition

KW - High titanium slag

KW - Low-valent titanium

KW - Microwave heating

KW - Rutile TiO

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JO - Powder Technology

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ER -

Study of the oxygen reduction of low valent titanium in high titanium slag by microwave rapid heating

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