Requirements on Carbon-Based Reducing Agents for Electrothermal Processes

被引：0
|
作者：
Ulyeva, G. A. [1 ]
机构：
[1] Analyt Monitoring Ctr, Temirtau, Kazakhstan
来源：
COKE AND CHEMISTRY | 2024年 / 67卷 / 10期
关键词：
special coke; Shubarkol coal; Kuu-Chek coal; long-flame coal; carbon-based reducing agents; coke structure; electrothermal processes; silicon production;
D O I：
10.3103/S1068364X24600982
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Solid carbon-based reducing agents used in the electrothermal production of industrial-grade silicon are compared. The properties and structure of traditional and nontraditional reducing agents are considered. Nontraditional reducing agents are produced by rapid oxidative pyrolysis of nonclinkering long-flame coal from fields in Central Kazakhstan (the Shubarkol and Kuu-Chek fields). The microstructure (pore size, thickness of pore walls) of the reducing agents is determined. With increase in heating rate, the pore size decreases. A developed pore structure appears in the special coke, and its reactivity increases. The reactivity is the most important parameter in the electrothermal production of silicon.
引用
收藏
页码：596 / 606
页数：11
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