Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 153, Issue 3, Pages 1165-1175Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2007.09.078
Keywords
flash point; prediction; partially miscible mixtures; vapor-liquid equilibrium; liquid-liquid equilibrium
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Flash point is the most important variable used to characterize fire and explosion hazard of liquids. Herein, partially miscible mixtures are presented within the context of liquid-liquid extraction processes. This paper describes development of a model for predicting the flash point of binary partially miscible mixtures of flammable solvents. To confirm the predictive efficacy of the derived flash points, the model was verified by comparing the predicted values with the experimental data for the studied mixtures: methanol + octane; methanol + decane; acetone + decane; methanol + 2,2,4-trimethylpentane; and, ethanol + tetradecane. Our results reveal that immiscibility in the two liquid phases should not be ignored in the prediction of flash point. Overall, the predictive results of this proposed model describe the experimental data well. Based on this evidence, therefore, it appears reasonable to suggest potential application for our model in assessment of fire and explosion hazards, and development of inherently safer designs for chemical processes containing binary partially miscible mixtures of flammable solvents. (C) 2007 Elsevier B.V. All rights reserved.
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