• 제목/요약/키워드: Methyl Ethyl Ketone

검색결과 137건 처리시간 0.035초

Solvent-water-2-propanol 삼성분계의 액-액평형 (LLE of Solvent-Water-2-Propanol Ternary Systems)

  • 정상훈;이진우;박동원
    • 공업화학
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    • 제8권4호
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    • pp.653-659
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    • 1997
  • 에너지 비용의 상승에 따라 추출의 기본원리를 둔 새로운 분리공정에 대한 연구가 많이 진행되고 있으며, 이에 따라 액-액평형 조성의 계산 및 예측에 대한 필요성이 매우 증가하고 있다. 본 연구에서는 공비혼합물을 형성하는 2-propanol 수용액에 용매로서 methyl ethyl ketone, methyl isobutyl ketone, ethylacetate, butylacetate, toluene 및 o-xylene을 첨가한 삼성분계에 대하여 $25^{\circ}C$에서 용해도곡선, tie line, plait point, 분배계수와 선택도를 실험을 통해 구하였다. Tie line 데이터의열역학적 건전성을 확인하였으며 실험값을 NRTL 및 UNIQUAC 모델식으로 구한 계산값과 비교하였다.

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유통법을 사용한 톨루엔과 o-크실렌 및 톨루엔과 메틸에틸케톤 혼합용제의 인화점 측정에 관한 연구 (A Study on the Flash Point Determination of Toluene-o-Xylene and Toluene-Methyl Ethyl Ketone Mixtures by Air-Blowing Method)

  • 신열우;목연수;최일곤
    • 한국안전학회지
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    • 제10권2호
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    • pp.92-96
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    • 1995
  • The flash point is generally used as a hazardous index of fire or explosion of a flammable liquid. In this study, the lower flash points and the upper flash points according to the composition of Toluene-o-Xylene and Toluene-Methyl Ethyl Ketone mixtures are determined by air-blowing method. As results, relations between the flash points and the compositions of mixtures ; (1) for Toluene-o-Xylene mixtures $T_{fL}$=25.23 $\alpha$ +5.34 $T_{fu}$=27.36 $\alpha$ +40.50 (2) for Toluene-Methyl Ethyl Keton mixtures $T_{fL}$=10.00 $\beta$-5.00 $T_{fu}$=16.91 $\beta$+20.45.

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Methyl Ethyl Ketone Peroxide의 위험성을 판단하기 위한 자연발화, 인화점 및 폭발거동에 관한 기초 연구 (A Study of Characteristics such as Spontaneous Ignition, Flash Point and Explosion Behavior of Methyl Ethyl Ketone Peroxide in ender to Determine its Hazardousness)

  • 정두균;최재욱;이인식;임우섭;김동규
    • 한국안전학회지
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    • 제20권3호
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    • pp.78-83
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    • 2005
  • In this study, the evaluate characteristics of fire and explosion of MEK-PO are subjected to spontaneous ignition, flash point and explosion hazard. The minimum ignition temperature and instantaneous ignition temperature for MEK-PO were $188.5^{\circ}C\;and\;230^{\circ}C\;at\;225{\mu}L$. In addition The flash point for MEK-PO was obtained at $49^{\circ}C$. Furthermore, the maximum explosion pressure and the maximum explosion pressure rising velocity: using MCPVT (mini cup pressure vessel tester) were $10.82kgf/cm^2\;and\;33.72kgf/cm^2{\cdot}s$.

Room Temperature Catalytic Ozonation of Methyl Ethyl Ketone over Mesoporous MnOx/Al2O3 Catalysts

  • Reddy, Kannapu Hari Prasad;Park, Youna;Song, JiHyeon;Park, Young-Kwon
    • 공업화학
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    • 제32권4호
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    • pp.483-486
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    • 2021
  • Catalytic ozonation of methyl ethyl ketone (MEK) has been examined over mesoporous MnOx/Al2O3 (MA) catalysts developed by a solvent deficient method using two different manganese precursors including manganese chloride (C) and manganese sulfate (S) at room temperature. The maximum catalytic activities of MA with C (MEK removal efficiency and ozone decomposition of 98.4 and 93.7%, respectively) were higher than those of MA with S (MEK removal efficiency and ozone decomposition of 96 and 68%, respectively). Also the catalytic stability of MA with C was much higher than that of MA with S. The physico-chemical properties of catalysts are well correlated with the activity results, which confirmed that fine dispersion of MnOx species with high ratios of Mn3+/Mn4+ and more acid sites are attributed to the higher catalyst stability for the MA-C catalyst.