The Removal of Titanium from Metallurgical Silicon by HF–HCL Leaching

Xie, Ke; Mai, Yi; Ma, Wenhui; Wei, Kuixian; Zhou, Jihong; Zhang, Long

doi:10.1007/s11015-013-9781-2

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…However, there are few studies on magnesium reduction to reduce the oxygen content of niobium powder [11][12][13][14][15]. After oxygen reduction, the oxygen content of niobium powder is still on the high side, and the complete degree of oxygen binding with magnesium in the process of magnesium reduction and the degree of secondary oxidation on the surface of niobium powder in the process of cooling will affect the oxygen content of niobium [15][16][17][18][19][20][21][22].…”

mentioning

confidence: 99%

Effect of Magnesium Reduction Process on Oxygen Content of Pickling Niobium Powder

Wang

Liu

Zhang

et al. 2021

Preprint

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Aiming at the problem of high oxygen content in industrial niobium powder, the oxygen reduction process of high oxygen niobium powder magnesium was studied. Based on the thermodynamic analysis of magnesium thermal reduction of niobium powder, the effects of reduction temperature, magnesium addition, reduction time and reduction atmosphere on oxygen content of pickling niobium powder were studied. The results show that: with the increase of magnesium addition, the oxygen content of pickling niobium powder gradually decreases to a certain value and then remains unchanged. In a certain temperature range (953k-1203k), with the increase of reduction temperature, the oxygen content of pickling niobium powder first decreases and then increases, and the best oxygen content is 356ppm at 1133k; with the extension of reduction time (2-6h), the oxygen content of pickling niobium powder first decreases and then remains unchanged. Finally, the oxygen content of pickled niobium powder is reduced to about 356 ppm at 400% Mg addition, 1133 K reduction temperature and 4 h reduction time.

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mentioning

confidence: 99%

Effect of Magnesium Reduction Process on Oxygen Content of Pickling Niobium Powder

Wang

Liu

Zhang

et al. 2021

Preprint

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A review of the process on the purification of metallurgical grade silicon by solvent refining

Xing³

et al. 2022

Materials Science in Semiconductor Processing

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Effect of magnesium reduction on the oxygen content of pickling niobium powder

Wang

Zhang²,

Liu

et al. 2021

Sci Rep

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Considering the problem of high oxygen content in industrial niobium powder, the oxygen reduction of high oxygen niobium powder with the addition of magnesium is studied. Based on the thermodynamic analysis of magnesium thermal reduction of niobium powder, the effects of reduction temperature, magnesium addition, reduction time, and reduction atmosphere on the oxygen content of pickling niobium powder are studied. The results show that with an increase in the magnesium addition, the oxygen content of pickling niobium powder gradually decreases to a certain value, and then remains unchanged. In a certain temperature range (953–1203 K), with an increase in the reduction temperature, the oxygen content of pickling niobium powder first decreases, and then increases; the best oxygen content is 356 ppm at 1133 K. With the extension in reduction time (2–6 h), the oxygen content of pickling niobium powder first decreases, and then remains unchanged. Finally, the oxygen content of pickled niobium powder is reduced to approximately 356 ppm at 400% magnesium addition at 1133 K for 4 h.

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The Removal of Titanium from Metallurgical Silicon by HF–HCL Leaching

Cited by 3 publications

References 11 publications

Effect of Magnesium Reduction Process on Oxygen Content of Pickling Niobium Powder

Effect of Magnesium Reduction Process on Oxygen Content of Pickling Niobium Powder

A review of the process on the purification of metallurgical grade silicon by solvent refining

Effect of magnesium reduction on the oxygen content of pickling niobium powder

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