Study on Grain Size and Porosity of the Produced Lime from Limestone in Early Converter Slag

被引：1

作者：

Zhang, Guangzong ^{[1
]}

Wang, Nan ^{[1
]}

Chen, Min ^{[1
]}

Deng, Haohua ^{[1
]}

Li, Xiaoao ^{[1
]}

机构：

[1] Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China

来源：

9TH INTERNATIONAL SYMPOSIUM ON HIGH-TEMPERATURE METALLURGICAL PROCESSING | 2018年

基金：

中国国家自然科学基金;

关键词：

Grain size; Porosity; Produced lime; Limestone; Slag temperature; DECOMPOSITION; SULFATION; CALCINATION; MODEL; PRESSURE;

D O I：

10.1007/978-3-319-72138-5_60

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Grain size and porosity of the produced lime from limestone in early converter slag and the influence of slag temperature in the range of 1300-1400 degrees C were investigated. The experimental results showed that both the grain size and porosity of the produced lime depended significantly on the slag temperature. After the complete decomposition time of limestone, grain size and porosity changed under the role of CaO grain growth. Grain size evolved sharply with slag temperature, which was illustrated by an analysis on the relationship between grain size and reaction time. Meanwhile, higher porosity was reached at 1400 degrees C due to the higher concentration gradient of CO2 between the reaction interface and slag bulk. A proposal to obtain the produced lime with finer grain size and higher porosity was given in this paper.

引用

页码：623 / 631

页数：9

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