期刊
TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN
卷 94, 期 11, 页码 483-490出版社
IRON STEEL INST JAPAN KEIDANREN KAIKAN
DOI: 10.2355/tetsutohagane.94.483
关键词
water vapor; carbon dioxide; gas injection; desiliconization; decarburization; gaseous mass transfer; kinetic study
Water vapor or carbon dioxide gas was injected into molten pig iron in order to oxidize silicon without oxidizing iron. When water vapor was injected, decarburization was predominant at high temperature. The oxidation of silicon occurred at low temperature of 1473 K. When carbon dioxide gas was injected, both of silicon oxidation and decarburization occurred simultaneously. But the former was predominant at lower temperature, while the latter at higher temperature, At 1523 K, the silicon content was lowered at 0.16 mass %. The oxidation of iron was not observed at all. The rate controlling step of silicon oxidation and decarburization are judged the mass transfer in the gas phase. With the increase in gas injection rate, the reaction rates decreased, because of bubble integration. The slag addition decreased the reaction rates, because the reactions were blocked on the melt surface.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据