Premium
Crystallization Kinetics Study of the (2CaO · SiO 2 ‐3CaO · P 2 O 5 ) Solid Solution in the Multiphase Dephosphorization Flux
Author(s) -
Xie Senlin,
Wang Wanlin
Publication year - 2016
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.201500080
Subject(s) - crystallization , isothermal process , materials science , flux (metallurgy) , solid solution , kinetics , thermodynamics , analytical chemistry (journal) , mineralogy , chemical engineering , crystallography , metallurgy , chemistry , chromatography , physics , quantum mechanics , engineering
An investigation is conducted to study the crystallization kinetics of the (2CaO · SiO 2 ‐3CaO · P 2 O 5 ) solid solution in the multiphase flux for hot metal treatment by using single hot thermocouple technique (SHTT) combined with SEM/EDS in this article. The results of the melting behavior show that with the increase of FeO t and P 2 O 5 content, the initial melting temperature range of the flux is reduced. During the isothermal crystallization process, it is found that the main morphology of the (2CaO · SiO 2 ‐3CaO · P 2 O 5 ) solid solution is varied with the increase of FeO t and P 2 O 5 content, regardless of the holding temperature. Besides, a kinetic analysis of the isothermal crystallization process indicates that the crystallization ability of the (2CaO · SiO 2 ‐3CaO · P 2 O 5 ) solid solution in the multiphase flux is enhanced with the addition of P 2 O 5 and the reduction of holding temperature; however, it is inhibited with the increase of FeO t content. Those results could provide a fundamental guidance for dephosphorization by using the multiphase flux for hot metal treatment.