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Vol.47, No.12, 828 ~ 834, 2009
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| Title |
| Study on the Evaporation Behaviour of Electrolytic Manganese Melt Under Reduced Pressure |
| 홍성훈 Seong Hun Hong , 전병혁 Byoung Hyuk Jeon , 위창현 Chang Hyun Wi , 신동엽 Dong Yub Shin , 유병돈 Byung Don You , 서성모 Seong Mo Seo , 박종민 Jong Min Park |
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| Abstract |
| As a fundamental study in the development of a distillation process for ferromanganese alloy melts, the evaporation behavior of an electrolytic manganese melt under reduced pressure was investigated. The melt temperature, vacuum degree, surface area of the melt, and reaction time were considered as experimental variables. The amount of vaporized manganese increases linearly as the reaction time increases, and the evaporation of manganese was promoted by increasing the temperature and surface area of the melt. In the pressure range below the equilibrium vapor pressure of manganese, the amount of vaporized manganese per unit surface area of the melt increased sharply with a decrease of the pressure in the reaction chamber. An empirical equation for the evaporation rate of manganese was derived by regression analysis. The evaporation coefficient of manganese was determined to be approximately 3.84×10(-3) (g·K1/2)/(Pa·cm2·min) under the investigated conditions. |
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| Key Words |
| evaporation of manganese, reduced pressure, temperature, surface area of melt, reaction time |
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