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분리기술 , 열역학 : Solvent + Water + 2 - Methyl Pyrazine 삼성분계의 액 - 액 평형
박소진(So Jin Park),원동복(Dong Bok Won),김현희(Hyun Hee Kim),김병현(Byung Hyun Kim),이상봉(Sang Bong Lee),최명재(Myung Jae Choi) 한국화학공학회 2001 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.39 No.6
The experimenral binodal curves were determined for the temary systems of water+2MP with cyclohexane, n-hexane, n-heptane, MCH, MCP and ethylacetate as solvents at 298.15K for finding a selective solvent to extract 2MP, used for pharmaceutical intermediate. Tie-line and plait point were also determined. The experimental tie line data were correlated with the NRTL model and extraction effectiveness of solvents was also examined by means of determining of distribution and selectivity curves.
박소진,박영신,황태원,한규진,오종혁,원동복 忠南大學校 産業技術硏究所 2001 산업기술연구논문집 Vol.16 No.2
정적인 융점측정 방법으로 benzene+n-dodecane, cyclohexane+phenol, phenol+water, water+sulfolane 및 diethylcarbonate+nitrobenzene계에 대한 고액 평형을 측정하였다. 측정된 고액평형 데이터는 문헌값과 modified UNIFAC에 의해 예측된 값과 비교하였으며, 추산값과 실험값은 ±1.61K 범위에서 잘 일치하였다. 본 연구에서 고찰된 diethylcarbonate의 융점은 기존문헌치와 큰 편차를 보여 재검증이 필요하다. Solid-liquid equilibrium(SLE) data were measured for benzene+ n-dodecane, cyclohexane+phenol phenol+water, water+sulfolane, and diethylcarbonate+ nitrobenzene systems by using static melting point measuring method. Measured SLE data were compared with the literature values and also compared with the values predicted by modified UNIFAC(Dortmund) equation. The experimental results are in good agreements with the published and estimated values, and the average deviation between the experimental values and the calculated values is ±1.16K. The measured melting point of diethylcarbonate shows some difference from literature value, and it will be certified through other experimental data for different systems.