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Thermodynamics of indium dissolution behavior in feo-bearing metallurgical slag
- Authors
- Han, Yun soon; Park, Joo hyun
- Issue Date
- Feb-2015
- Publisher
- ASM International
- Keywords
- Basicity; Dissolution mechanism; Indium; Oxygen potential; Solubility
- Citation
- Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, v.46, no.1, pp.235- - 242
- Indexed
- SCIE
SCOPUS
- Journal Title
- Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
- Volume
- 46
- Number
- 1
- Start Page
- 235-
- End Page
- 242
- ISSN
- 1073-5615
- Abstract
- Indium (In) solubility in the FeO-SiO2-Al2O 3-5%CaO slag was measured under p(O2)=10-11 atm at 1573 K to clarify the dissolution mechanism of In in FeO-bearing metallurgical slag. The In solubility increased with increasing oxygen partial pressure, whereas it decreased by increasing the activity of basic oxide, viz. FeO. Thus, a dissolution mechanism of In in the FeO-SiO2-Al 2O3-5%CaO slag was described by the following equation. In(s) + 1/4O2(g) = (In+)+1/2(02-) The enthalpy change of the In dissolution reaction was negative, indicating that the dissolution reaction was an exothermic reaction. This is consistent with the above reaction mechanism.
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Related Researcher
- Park, Joo Hyun
- ERICA 공학대학 (DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING)