1 0 0 0 IR 酸化鉄の還元平衡図について
- 著者
- 三本木 貢治 Koji SANBONGI
- 出版者
- 東北大學選鉱製錬研究所
- 雑誌
- 東北大学選鉱製錬研究所彙報 (ISSN:0040876X)
- 巻号頁・発行日
- vol.8, no.1, pp.39-46, 1952-06
The author had already performed some investigations on the reduction equilibrium of iron oxides and proposed the reduction equilibrium diagram of Fe-C-O system. But the equilibrium on systems of Fe_3O_4-liquid oxide-CO/CO_2 mixed gas and wustite-liquid oxide-CO/CO_2 mixed gas, and the relation between oxygen pct. in liquid oxide and CO/CO_2 mixed gas had not been measured. These relations were shown by concluded lines in the diagram. Recently these equilibrium were measured by Darken and Gurry and the relations between oxygen pct. in wustite and CO/CO_2 mixed gas were clecked from the view point of the statistical thermodynamics by Takeuchi and Igaki. Referring to these results, the author corrected the reduction equilibrium diagram of Fe-C-O system, then established the reduction equilibrium diagram of Fe-H-O system by the calculation.
1 0 0 0 OA <報文>セリウムによる溶鉄の脱酸に関する研究
- 著者
- 石川 遼平 井上 博文 三本木 貢治
- 出版者
- 東北大学
- 雑誌
- 東北大學選鑛製錬研究所彙報 (ISSN:0040876X)
- 巻号頁・発行日
- vol.29, no.2, pp.193-200, 1974-03-28
The relation berween cerium and oxygen in liquid iron together with the phase of deoxidation products at 1650℃ was studied. The following results were obtained : 1) The composition of deoxidation products is considered to be that the O/Ce ratio is 1.5 to 1.64 ([%Ce]<10 ppm), 2) If the deoxidation products are assumed as Ce_2O_3,the deoxidation equilibrium constant can be expressed as below, Ce_2O_3=2 Ce__-+3 O__- K=4.0×10^<-15>, 1650℃, [%Ce]<10 ppm.