Reduction of WO3 to W-metal by mechanochemical reaction

Junya Kano; Eiko Kobayashi; William Tongamp; Shoko Miyagi; Fumio Saito

doi:10.1016/j.jallcom.2009.02.001

Reduction of WO₃ to W-metal by mechanochemical reaction

Junya Kano, Eiko Kobayashi, William Tongamp, Shoko Miyagi, Fumio Saito

IMRAM - Center for Mineral Processing and Metallurgy (CMPM)

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

9 Citations (Scopus)

Abstract

A new non-thermal route for reduction of tungsten oxide (WO₃) to metallic tungsten (W) by a milling operation in ammonia (NH₃) gas atmosphere in the presence of lithium nitride (Li₃N) is proposed in this paper. A sample of WO₃ was milled with Li₃N under ammonia gas atmosphere in a planetary ball mill with ZrO₂ balls to induce mechanochemical (MC) reaction between the starting samples. Characterization of milled product by X-ray diffraction (XRD) analysis confirms that W-metal could be obtained by the new mechanochemical (MC) process within 1 h.

Original language	English
Pages (from-to)	666-669
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	480
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2009.02.001
Publication status	Published - 2009 Jul 8

Keywords

Lithium nitride
Mechanochemical reaction
Milling
Tungsten
Tungsten oxide

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10.1016/j.jallcom.2009.02.001

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title = "Reduction of WO3 to W-metal by mechanochemical reaction",

abstract = "A new non-thermal route for reduction of tungsten oxide (WO3) to metallic tungsten (W) by a milling operation in ammonia (NH3) gas atmosphere in the presence of lithium nitride (Li3N) is proposed in this paper. A sample of WO3 was milled with Li3N under ammonia gas atmosphere in a planetary ball mill with ZrO2 balls to induce mechanochemical (MC) reaction between the starting samples. Characterization of milled product by X-ray diffraction (XRD) analysis confirms that W-metal could be obtained by the new mechanochemical (MC) process within 1 h.",

keywords = "Lithium nitride, Mechanochemical reaction, Milling, Tungsten, Tungsten oxide",

author = "Junya Kano and Eiko Kobayashi and William Tongamp and Shoko Miyagi and Fumio Saito",

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T1 - Reduction of WO3 to W-metal by mechanochemical reaction

AU - Kano, Junya

AU - Kobayashi, Eiko

AU - Tongamp, William

AU - Miyagi, Shoko

AU - Saito, Fumio

PY - 2009/7/8

Y1 - 2009/7/8

N2 - A new non-thermal route for reduction of tungsten oxide (WO3) to metallic tungsten (W) by a milling operation in ammonia (NH3) gas atmosphere in the presence of lithium nitride (Li3N) is proposed in this paper. A sample of WO3 was milled with Li3N under ammonia gas atmosphere in a planetary ball mill with ZrO2 balls to induce mechanochemical (MC) reaction between the starting samples. Characterization of milled product by X-ray diffraction (XRD) analysis confirms that W-metal could be obtained by the new mechanochemical (MC) process within 1 h.

AB - A new non-thermal route for reduction of tungsten oxide (WO3) to metallic tungsten (W) by a milling operation in ammonia (NH3) gas atmosphere in the presence of lithium nitride (Li3N) is proposed in this paper. A sample of WO3 was milled with Li3N under ammonia gas atmosphere in a planetary ball mill with ZrO2 balls to induce mechanochemical (MC) reaction between the starting samples. Characterization of milled product by X-ray diffraction (XRD) analysis confirms that W-metal could be obtained by the new mechanochemical (MC) process within 1 h.

KW - Lithium nitride

KW - Mechanochemical reaction

KW - Milling

KW - Tungsten

KW - Tungsten oxide

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DO - 10.1016/j.jallcom.2009.02.001

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EP - 669

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

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ER -

Reduction of WO₃ to W-metal by mechanochemical reaction

Abstract

Keywords

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