Characteristics of the Sierra Leone High Alumina Iron Ore and Utilization in Sintering

被引：4

作者：

Dong Jie-ji ^{[1
,2
]}

Wang Guang ^{[1
,3
]}

Zuo Mao-fang ^{[2
]}

Li Hua ^{[2
]}

Xue Qing-guo ^{[1
,3
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China

[2] Zhang Dian Steel Plant, Zibo 256400, Peoples R China

[3] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China

来源：

CHEMICAL, MATERIAL AND METALLURGICAL ENGINEERING III, PTS 1-3 | 2014年 / 881-883卷

关键词：

Sierra Leone iron ore; sintering; characteristics; TG-DSC; gibbsite; GIBBSITE;

D O I：

10.4028/www.scientific.net/AMR.881-883.1515

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The characteristics of the Sierra Leone iron ore were studied at laboratory scale by chemical analysis, XRD, SEM-EDS and TG-DSC methods. The Sierra Leone iron ore was a kind of limonite, which was mainly consisted of hematite, goethite and gibbsite. The iron ore lost its crystal water at a fast speed ranging from 200 degrees C to 400 degrees C and the total content of the crystal water was about 8.2 wt.%. The initial melt formation temperature of the iron ore with CaO was stably kept at around 1209 C and the amount of liquid increased with the increasing of CaO content. Its melt formation temperature is higher than Australian limonite. The sintering pot test showed that the yield of sinter decreases from 78.37wt.% to 73.36wt.% and the drum index decreases from 60.5wt.% to 49.63wt.% when the blending ratio of Sierra Leone iron ore increases from 7wt.% to 27.3wt.%.

引用

页码：1515 / +

页数：2

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