Preparation of titanium powders by calciothermic reduction of titanium dioxide

被引：1
|
作者：
万贺利 [1 ,2 ,3 ,4 ]
徐宝强 [1 ,2 ,3 ,4 ]
戴永年 [1 ,2 ,3 ,4 ]
杨斌 [1 ,2 ,3 ,4 ]
刘大春 [1 ,2 ,3 ,4 ]
森维 [1 ,2 ]
机构：
[1] National Engineering Laboratory for Vacuum Metallurgy (Kunming University of Science and Technology)
[2] State Key Laboratory of Breeding Base of Complex Nonferrous Metal Resources Clear Utilization in Yunnan Province(Kunming University of Science and Technology)
[3] Key Laboratory for Nonferrous Metals Vacuum Metallurgy of Yunnan Province (Kunming University of Science and Technology)
[4] Faculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology
来源：
Journal of Central South University | 2012年 / 19卷 / 09期
基金：
中国国家自然科学基金;
关键词：
titanium powders; titanium dioxide; calciothermic reduction; calcium chloride;
D O I：
暂无
中图分类号：
O614.411 [];
学科分类号：
摘要：
To develop an effective process for titanium powders production,a calciothermic reduction process of pigment titanium dioxide(w(TiO2)>98%),based on the preform reduction process(PRP),was investigated by means of XRD,SEM and EDS.In this process,the mixture of TiO2 powder and CaCl2 was pressed into pieces as feed preform and was reduced by calcium vapor.Titanium powders was recovered after leaching from the reduced preform with hydrochloric acid and deionized water.The results indicate when the mass ratio of CaCl2 to TiO2 is about 1:4 and at a constant temperature of 1 273 K for 6 h in vacuum furnace,titanium powders with 99.55% purity by EDS analysis and irregular shape(8-15 μm in particle size) are obtained.
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页码：2434 / 2439
页数：6
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