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The Research On The Extractive Distillation With Salt In Triple Azeotrope System

Posted on:2004-07-02Degree:MasterType:Thesis
Country:ChinaCandidate:Z Q ShiFull Text:PDF
GTID:2121360092986254Subject:Chemical processes
Abstract/Summary:PDF Full Text Request
A new process of extraction distillation with salt was developed for the triple azeotropic system of methyl acetate-ethanol-water and the selective method of the solvent and salt were studied.The effect of the ions such as Cl CH3COO Na+ K+ and Ca2+ upon the phase equilibrium was simulated by Matlab, in which the UNIQUAC model put forward by Sander was extended to that is brought out by Sander is extended to the triple azeotropic system. KAC was the fit salt.A method of solvent selected and optimized on the base of Group Contribution Model was established, then according the relative volatility, relative molecular mole mass, melting point, boiling point, and so on to design the solvent molecular. Glycol was the fit solvent.One set of extractive experiment equipment with continuously feed was designed and established to validate the extractive distillation and extractive distillation with salt. Good results of the two technology processes and the extractive solvent recycling experiment were gained respectively. The results proved the process was feasible and the triple azeotropic system could be completely distillated.
Keywords/Search Tags:extractive distillation with salt, solvent selection, triple azeotropic system separation, salt selection
PDF Full Text Request
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