{"title":"Research on thermodynamic characteristics of metallurgical slag","authors":"Yongchun Guo, Mengyao Li","doi":"10.1051/metal/2023084","DOIUrl":null,"url":null,"abstract":"This article uses Sn as the metal flux and CaF2-CaO as the reference slag to experimentally measure the activity of CaO at T = 1773∼1873 K. The effects of different w(Al2O3) and temperature(T) on CaO activity were investigated. The results are as follows: when w(MgO) = 6%, R(w(CaO)/w(SiO2)) = 1.20, w(Al2O3) = 12%, 14%, 16% and 18%, with the increase of w(Al2O3), the activity and activity coefficient of CaO in slag gradually decrease; with the increase of temperature (T), the activity and activity coefficient of CaO in slag gradually increase; the activity coefficient of Ca in Sn decrease with increasing temperature.","PeriodicalId":370509,"journal":{"name":"Metallurgical Research & Technology","volume":" 7","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metallurgical Research & Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1051/metal/2023084","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
This article uses Sn as the metal flux and CaF2-CaO as the reference slag to experimentally measure the activity of CaO at T = 1773∼1873 K. The effects of different w(Al2O3) and temperature(T) on CaO activity were investigated. The results are as follows: when w(MgO) = 6%, R(w(CaO)/w(SiO2)) = 1.20, w(Al2O3) = 12%, 14%, 16% and 18%, with the increase of w(Al2O3), the activity and activity coefficient of CaO in slag gradually decrease; with the increase of temperature (T), the activity and activity coefficient of CaO in slag gradually increase; the activity coefficient of Ca in Sn decrease with increasing temperature.
本文以 Sn 为金属助熔剂，CaF2-CaO 为基准渣，在 T = 1773∼1873 K 条件下实验测定了 CaO 的活性，研究了不同 w(Al2O3) 和温度（T）对 CaO 活性的影响。结果如下：当 w(MgO) = 6%，R(w(CaO)/w(SiO2)) = 1.20，w(Al2O3) = 12%、14%、16% 和 18%时，随着 w(Al2O3) 的增加，熔渣中 CaO 的活性和活性系数逐渐降低；随着温度（T）的增加，熔渣中 CaO 的活性和活性系数逐渐增加；随着温度的增加，锡中 Ca 的活性系数降低。
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