{"title":"Evaluation of Wettability at Interface between Molten Slag and Liquid Fe on Recovery of Metallic Fe from Lunar Regolith","authors":"Sunglock Lim, Masayuki Ieuji, Masashi Nakamoto, Kiyoshi Fuji-ta, Takeshi Yoshikawa, Toshihiro Tanaka","doi":"10.2355/isijinternational.isijint-2024-075","DOIUrl":null,"url":null,"abstract":"</p><p>High-temperature H<sub>2</sub> reduction and melting experiments were conducted to extract metallic Fe from lunar regolith simulant. Differences in the recovery of metallic Fe with the addition of oxides were investigated in terms of the wettability at the interface between molten slag and liquid Fe. Ilmenite, albite, and Na<sub>2</sub>O·<i>x</i>SiO<sub>2</sub> compounds were used as additive oxides. The effect of wettability on Fe recovery is discussed by evaluation of the contact angle obtained by calculations of surface tension and interfacial tension. The results confirmed that wettability is a major factor affecting coalescence of Fe particles in these slags.</p>\n<p></p>","PeriodicalId":14619,"journal":{"name":"Isij International","volume":"22 1","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Isij International","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.2355/isijinternational.isijint-2024-075","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
Abstract
High-temperature H2 reduction and melting experiments were conducted to extract metallic Fe from lunar regolith simulant. Differences in the recovery of metallic Fe with the addition of oxides were investigated in terms of the wettability at the interface between molten slag and liquid Fe. Ilmenite, albite, and Na2O·xSiO2 compounds were used as additive oxides. The effect of wettability on Fe recovery is discussed by evaluation of the contact angle obtained by calculations of surface tension and interfacial tension. The results confirmed that wettability is a major factor affecting coalescence of Fe particles in these slags.
期刊介绍：
The journal provides an international medium for the publication of fundamental and technological aspects of the properties, structure, characterization and modeling, processing, fabrication, and environmental issues of iron and steel, along with related engineering materials.
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