Acta Metall Sin  1994, Vol. 30 Issue (20): 350-360    DOI:

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STUDY ON OXYGEN TRANSFER THROUGH MOLTEN SLAGS OF CaF_2+Al_2O_3 AND CaF_2+Al_2O_3+CaO SYSTEMS FOR ESR

WEI Jihe (Shanghai Univereity.of Technology);LIU Zongyuan(Xi'van Institute of Metallurgy Construction Engineering)

WEI Jihe (Shanghai Univereity.of Technology);LIU Zongyuan(Xi'van Institute of Metallurgy Construction Engineering). STUDY ON OXYGEN TRANSFER THROUGH MOLTEN SLAGS OF CaF_2+Al_2O_3 AND CaF_2+Al_2O_3+CaO SYSTEMS FOR ESR. Acta Metall Sin, 1994, 30(20): 350-360.

Abstract References Related Articles Recommended Metrics Download:  PDF(654KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The permeability of oxygen through the molten slags of CaF_2+Al_2Os_3 and CaF_2+Al_2O_3+CaO systems for electrostag (ESR) was determined using. an oxygen concentration cell with ZrO_2 solid electrolyte. The effects of the components in the slags and temperture on the oxygen transfer property of the molten slags were considered. The permeability of the molten slags of these two systems whose compositions are essentially the same as the practical in the remelting,was obtained to be respectively 1× 10-20-6 × 10-19 and 1× 10-21-5 × 10-18 mol O2.cm-1.s-1 in the temperature range of 1673—1873 K under pure oxygen gas at 0.1 MPa. It increases with raising the contents of MnO_2, Fe_2O_3, Cr_2O_3, TiO_2,CaF_2and basicity in the molten slags, and the influence of MnO_2 and Fe_2O_3 is particularly remarkable. Also, it raises with an increase in temperature, and the oxygen transfer through the CaF_2-based multicomponent and complicate liquid slags may be treated as a rate process.The mechanism of oxygen transfer through the CaF_2-based liquid slags was discussed. Key words:  electroslag remelting      molten slag      CaF_2+Al_2O_3 system      CaF_2+Al_2O_3+CaO system      oxygen dtansfer property      permeability.      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1994/V30/I20/350 1魏季和,MitchellA．金属学报,1984:20(5):B261,2802魏季和,MitchellA,金属学报,1987;23(3):B1263WeiChiho．ChinJMetSciTechnol,1989;5(4):2354HawkinsRJ,SwindenDJ,PocklingtonDN．EleotroslagRefining,ISI,London,1973:215BoykoGA,KuslintskyAB,etalIn:PatonBE,MedovarBl,eds．ElelroshlakovouymetallNaukavadumka,Kiev,1981:316InougeM．Proc3rdIntIronSteelCongress,Chicago,Ilinois,April,AIME,1978;3277FraserME,MitchellA．IronmakingSteelmaking,1976;3(5):2888SchwerdifegerK,WepnerW,PateiskyG．IronmakingSteelmaking,1978:5(3):1359SaitoT,ShiraishiY,etal．Preprints7IthMeetingJapanInstMetals,1972:25210KorosPJ,KingTB．TransMetSocAIME,1962:224:22911SasabeM,GotoKS,MetallTrans,1974;5:222512NagaharaH,ShiraishiY．Preprints81thMeetingJapanInstMetals,1977:17913SasabeM,KinoshitaY．TransIronSteelInstJapan,1980;20:80114SasabeM,AsamuraA,2ndIntSympMetSlagsFluxes,LakeTahoe,Nevada,Nov．,TMS—AIME1984:65115SasabeM,KitamumraS．ISIJInt,1992;33(1):13316魏季和,向顺华,刘宗远．化工冶金,1989;10(1):8717CoughlinJP．USBureauMinesBull,1954:(542)18WagnerCZ．PhysChem,1993;21:25V [1] Qing LI,Zixing WANG,Shuyuan XIE. 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[6] ZHANG Jian(Metallurgical Engineering School; University of Science and Technology Beijing; Beijing 100083). CONSISTENCY(OR SIMILARITY) OF THERMODYNAMIC PROPERTIES OF METALLURGICAL MELTS WITH THEIR PHASE DIAGRAMS[J]. 金属学报, 1998, 34(7): 742-752. [7] WEI Jihe(Shanghai University; 200072); REN Yongli; (Xi'an Institute of Metallurgy and Construction Engineering; 710055)(Manuscript received 94-04-27). MATHEMATICAL SIMULATION OF MAGNETIC FIELD IN ESR SYSTEM[J]. 金属学报, 1995, 31(14): 51-60. [8] WEI Jihe(WEI Chiho)(Shanghai University);REN Yongli(Xi'an Institute of Metallurgy and Construction Engineering)(Manuscript received 19 February; 1994). MATHEMATICAL MODELLING OF SLAG FLOW FIELD IN ESR SYSTEM[J]. 金属学报, 1994, 30(23): 481-490. [9] DIAO Risheng;WANG Xiqing;WANG Huaiyong;ZHANG Rong;DU Hegui Iron and Steel Research Institute; Panzhihua Iron and Steel Company; Northeast University of Technology; Shenyang. CORRELATION OF ION-CLUSTER STRUCTURE WITH BULK VISCOSITY AND DENSITY OF TiO_2-BEARING MOLTEN SLAG[J]. 金属学报, 1992, 28(3): 55-59. [10] LIU Huanming;DU Hong;YANG Zupan;LI Guodong;DU Kun Benxi Iron and Steel Company; Northeast University of Technology; Shenyang; Centrel Iron and Steel Research Institute; Ministry of Metallurgical Industry. Beijing. ACTIVITY OF TiO_2 IN MOLTEN BLAST FURNACE SLAG CONTAINING TITANIUM OXIDE[J]. 金属学报, 1992, 28(2): 47-51. [11] CHEN Chongxi;GAO Rongfu Beijing University of Iron and Steel TechnologyDeft.of Superalloy;Beijing University of Iron and Steel Technology; Beijing. STUDY OF A NEW TYPE SEMI-LINING ELECTRO-SLAG REMELTING[J]. 金属学报, 1988, 24(3): 221-228. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed