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Effect of Water Vapor on Sulfur Distribution Between Liquid Fe and MgO‐Saturated Slag Relevant to a Flash Ironmaking Technology
Author(s) -
Mohassab Yousef,
Sohn Hong Yong
Publication year - 2015
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201400197
Subject(s) - sulfur , flash (photography) , coke , metallurgy , slag (welding) , hydrogen , iron ore , chemistry , hydrogen sulfide , materials science , atmospheric temperature range , thermodynamics , organic chemistry , art , physics , visual arts
As part of research to develop a novel flash ironmaking process using natural gas or hydrogen to reduce iron ore concentrate, sulfur distribution between MgO‐saturated slag and iron was determined in the temperature range 1550–1650 °C under three different gas atmospheres: H 2 /H 2 O, H 2 /H 2 O/CO/CO 2 , and CO/CO 2 . The distribution ratios of sulfur ( L S ) were 4.0, 2.0, and 0.8, respectively, under these atmospheres. In the flash process over ≈25 wt% S volatilize during ore concentrate downward flight in the reactor shaft in addition to avoiding coke. Therefore, the sulfur content of iron produced by the flash ironmaking process will be much lower than that of hot metal produced by the BF.