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碳還原鋯英石分離SiO2和ZrO2

袁章福,  羅敏,  仇永泉,  萬天驥

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文章導航 > 工程科學學報  > 1995 >  17(4): 336-340
袁章福, 羅敏, 仇永泉, 萬天驥. 碳還原鋯英石分離SiO2和ZrO2[J]. 工程科學學報, 1995, 17(4): 336-340. doi: 10.13374/j.issn1001-053x.1995.04.006
引用本文: 袁章福, 羅敏, 仇永泉, 萬天驥. 碳還原鋯英石分離SiO2和ZrO2[J]. 工程科學學報, 1995, 17(4): 336-340. doi: 10.13374/j.issn1001-053x.1995.04.006
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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
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碳還原鋯英石分離SiO2和ZrO2

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

  • 1. 北京科技大學冶金系, 北京 100083;

  • 2. 漣源鋼鐵公司鋼研所, 湖南 417009

基金項目: 

國家科委“八五”科技攻關課題

詳細信息
    作者簡介:

    袁章福,男,31歲,講師博士

  • 中圖分類號: TQ643.133

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

  • 1. Department of Metallurgy, USTB, Beijing 100083, PRC;

  • 2. Lianyuan Iron and Steel Co. Ltd

    摘要
  • 摘要: 進行了配碳量、溫度、時間和顆粒大小及試樣形式對碳還原鋯英石中SiO2的實驗研究,得到相應脫硅率的影響規律。理論上,脫硅率的極大值可達到97.22%。碳還原鋯英石的表現反應活化能,在1600~2000℃溫度范圍內為282.04kJ/mol。鋯英石被碳還原的限制環節是鋯英石的熱分解,而不是它裂解成SiO2之后再與碳的反應。

     

    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.

     

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出版歷程
  • 收稿日期:  1994-07-10
  • 網絡出版日期:  2021-09-06

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