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CaO-CaF2-SiO2 슬래그의 탈린능에 미치는 BaO 및 알카리계 금속산화물의 첨가 효과

Title
CaO-CaF2-SiO2 슬래그의 탈린능에 미치는 BaO 및 알카리계 금속산화물의 첨가 효과
Other Titles
Effect of BaO and Alkali metal oxides Additions in CaO - CaF2 - SiO2 Slags on Dephosphorization Capability
Author
박종진
Keywords
Dephosphorization; CaO based slag; BaO; Li2O; K2O; Na2O; Phosphorus distribution; Phosphate capacity; Optical basicity; Activity coefficient
Issue Date
2001-05
Publisher
대한금속재료학회(구 대한금속학회)
Citation
대한금속재료학회지, v. 39, no. 5, page. 595-601
Abstract
The effect of oxide additives, such as BaO, Li₂O, K₂O and Na₂O in CaO-CaF₂-SiO₂ slags on the equilibrium phosphorus distribution ratios, L_p between molten slags and Fe-C_(sat·)-P melts were studied at 1300℃. The effect of BaO addition on the increase in the L_p is more significant when it is added to the lower basicity slag. The small addition of Li₂O K₂O and Na₂O in CaO-CaF₂-SiO₂ slags significantly increases the L_p. The stability of Li₂O in slag is much higher than K₂O and Na₂O during the dephosphorization reaction. The correlation between the phosphate capacities of slags containing alkali metal oxides does not show the linear relationship with their optical basicities. The alkali metal oxides decrease the activity coefficient of phosphate ions in slag drastically, and thereby increase the dephosphorization capability of CaO based slags.
URI
http://kiss.kstudy.com/thesis/thesis-view.asp?key=1726606https://repository.hanyang.ac.kr/handle/20.500.11754/158472
ISSN
1738-8228; 2288-8241
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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