Separation of SiO<sub>2</sub>, and ZrO<sub>2</sub> from Zircon by Carbon-Reduction

Yuan Zhangfu; Luo Min; Chou Yongquan; Wan Tianji

doi:10.13374/j.issn1001-053x.1995.04.006

Volume 17 Issue 4

Sep. 2021

Turn off MathJax

Article Contents

Article Navigation > Chinese Journal of Engineering > 1995 > 17(4): 336-340

Yuan Zhangfu, Luo Min, Chou Yongquan, Wan Tianji. Separation of SiO2, and ZrO2 from Zircon by Carbon-Reduction[J]. Chinese Journal of Engineering, 1995, 17(4): 336-340. doi: 10.13374/j.issn1001-053x.1995.04.006

Citation:

Yuan Zhangfu, Luo Min, Chou Yongquan, Wan Tianji. Separation of SiO₂, and ZrO₂ from Zircon by Carbon-Reduction[J]. Chinese Journal of Engineering, 1995, 17(4): 336-340. doi: 10.13374/j.issn1001-053x.1995.04.006

Citation:

PDF( 457 KB)

Separation of SiO₂, and ZrO₂ from Zircon by Carbon-Reduction

doi: 10.13374/j.issn1001-053x.1995.04.006

1. Department of Metallurgy, USTB, Beijing 100083, PRC;
2. Lianyuan Iron and Steel Co. Ltd

Received Date: 1994-07-10
Available Online: 2021-09-06

Abstract

Abstract

The influence of carbon content, temperature, time, particle size and from of samples on the reduction of SiO₂ by carbon in zircon were studied. The effects of these factors on the ratio of desilica from zircon were obtained. The maximum value of this ratio could reach to 97.22% theoritically. The apparent activation energy for the reaction of zircon with carbon was 282.04 kJ/mol (1600~2000℃).Besides, the limiting step of reduction of SiO₂ in zircon was the heat decomposition of zircon, not the reaction of SiO₂ with carbon after decompostion of zircon.
- zircon,
- silica,
- zirconia,
- separation,
- reduction,
- carbon