Magnesiothermic Reduction from Titanium Dioxide to Produce Titanium Powder

Journal of Sustainable Metallurgy - Tập 5 - Trang 219-229 - 2019
Rafael Bolivar1, Bernd Friedrich2
1Mechanical Engineering Program, Pamplona University, Pamplona, Colombia
2Institute of Process Metallurgy and Metal Recycling (IME), RWTH-Aachen University, Aachen, Germany

Tóm tắt

Titanium metallic powder (2.98 wt% O) of irregular and semi-spherical particles sizes ranging between 0.5 and 3.5 µm was obtained by magnesiothermic reduction of TiO2 and a leaching purification process. Magnesiothermic reduction experiments were carried out to evaluate the influence of temperature and molar ratio of Mg/TiO2. A rotary tube reactor in three different configurations was used to promote solid–liquid and solid–gas model reaction. The best configuration resulted when solid–gas model reaction was promoted. Different mixtures of acid as 6M HCl, 3M HCl, 0.55M HCl plus a mixture of 8 HCl% + 3 HNO3% were used to evaluate the purification of solid titanium metal by dissolution of Mg, MgO, Ni, Fe, magnesium titanates, and titanium oxides.

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Thông tin xuất bản

Journal of Sustainable Metallurgy

Tập 5

219-229

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