Optimization of magnetizing reduction and magnetic separation of iron ores by experimental design

被引：7
作者：
Nasr, MI
Youssef, MA
机构：
[1] Central Metallurgical Research, Development Institute, CMRDI, Helwan, Cairo
来源：
ISIJ INTERNATIONAL | 1996年 / 36卷 / 06期
关键词：
experimental design; magnetizing reduction; magnetic separation; iron ores; factorial design; gaseous reduction;
D O I：
10.2355/isijinternational.36.631
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
An experimental design of magnetizing reduction and magnetic separation of Egyptian low grade iron ore has been conducted using a data developed from applying the conventional single-factor experimentation in order to get the real optimum conditions of the processing. A model has been developed for magnetizing reduction to describe the relationship between the extent of reduction and the reduction temperature, time and reducing gas flow rate, whereas another model for magnetic separation process was deduced correlating the ore size and reduction lime to the iron recovery in the magnetic concentrate.
引用
收藏
页码：631 / 639
页数：9
相关论文
共 17 条
[1]   THE REMARKABLE EFFECT OF WATER-VAPOR ON THE CRACKING OF HEMATITE DURING ITS REDUCTION INTO MAGNETITE [J].
ADAM, F ;
JEANNOT, F ;
DUPRE, B ;
GLEITZER, C .
REACTIVITY OF SOLIDS, 1988, 5 (2-3) :115-127
[2]   A NEW METHOD FOR MEASUREMENT OF DEGREE OF REDUCTION IN COMPOSITE PELLETS OF IRON-ORE WITH CARBONACEOUS MATTER [J].
DUTTA, SK ;
GHOSH, A .
ISIJ INTERNATIONAL, 1993, 33 (10) :1104-1106
[3]   HEMATITE SINGLE-CRYSTAL REDUCTION INTO MAGNETITE WITH CO-CO2 [J].
ETTABIROU, M ;
DUPRE, B ;
GLEITZER, C .
METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1988, 19 (02) :311-317
[4]  
ELABDOUNI H, 1988, REACTIV SOLIDS, V5, P101
[5]   KINETICS AND MECHANISMS OF RE-OXIDATION OF FRESHLY REDUCED IRON COMPACTS [J].
ELGEASSY, AA ;
ELKASHIF, FO ;
NASR, MI ;
OMAR, AA .
ISIJ INTERNATIONAL, 1994, 34 (07) :541-547
[6]  
GRIFFITH WA, 1962, 60 ANN FROTH FLOT, pCH12
[7]  
Loo C. E., 1994, T I MIN METALL, V103, P126
[8]   3 NEW ORIENTATIONS OF THE MAGNETITE OBSERVED DURING THE REDUCTION OF HEMATITE BETWEEN 700-800-DEGREES AND EXPLANATION OF THE MULTIPLICITY OF THE DIFFERENT ORIENTATIONS [J].
MODARESSI, A ;
ELABDOUNI, H ;
HEIZMANN, JJ .
REACTIVITY OF SOLIDS, 1989, 7 (01) :19-27
[9]  
NASRIN T, 1994, INDEX CENSORSHIP, V23, P209
[10]  
PARAKASH S, 1994, IRONMAK STEELMAK, V21, P237
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