Formation of iron oxides by the oxidation of iron in Fe-MOH-H2O and Fe-MOH-H2O-O-2 systems (M=Li, Na, K)

被引：9
|
作者：
Uchida, S [1 ]
Kashiwagi, H [1 ]
Sato, T [1 ]
Okuwaki, A [1 ]
机构：
[1] TOHOKU UNIV,FAC ENGN,DEPT MOLEC CHEM & ENGN,AOBA KU,SENDAI,MIYAGI 980,JAPAN
来源：
JOURNAL OF MATERIALS SCIENCE | 1996年 / 31卷 / 14期
关键词：
D O I：
10.1007/BF00352798
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The oxidation behaviours of iron powders, ca. 100 mu m in diameter, in 5-50 m NaOH, 5-40 m KOH and 5-40 m LiOH solutions at 373-573 K were investigated in the absence and presence of oxygen, where m is molality. The oxidation of iron proceeded noticeably above 423 K to form Fe3O4, alpha-Fe2O3, alpha-NaFeO2, gamma-Fe2O3, LixFe3-xO4 and alpha-LiFeO2 depending on the reaction conditions. The rate of oxidation in LiOH solutions was much slower than those in NaOH and KOH solutions.
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页码：3827 / 3830
页数：4
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