Please visit our Vacuum Pump Selection Guide for assistance with specifying the exact right vacuum pump for your application, including aspiration, centrifugal concentration, rotary evaporation, and more. Solvent listing does not necessarily imply chemical or physical compatibility with VACUUBRAND vacuum pumps and systems. Note: Solvent boiling points acquired from materials published online by Honeywell Burdick and Jackson, University of Oxford, University of Louisville, Michigan State University, and IPS INCHEM and are inteded for use with the BrandTech Scientific Vacuum Pump Selection Guide only. (all boiling points at standard pressure) Solvent Bottletop Dispensers Parts & Accessories.Seader & Henley (2006)26Other Equilibrium Diagrams:27Ģ7Overview28 Brief thermodynamics review Binary Flash with energy balanceSequential solutionSimultaneous solution Multicomponent Flash28Binary Flash29 P = 1.013 barT = various oCBenzene - TolueneT vs X or Temp vs CompositionY vs X diagram22Other Equilibrium Diagrams:23 Mixtures to model:MeOH waterEtOH waterpropanol watern-butanol watern-butane n-pentanebenzene tolueneacetic acid propionic acidCO2 toluene (high P)Other Equilibrium Diagrams:20P T diagram ^ = lambda18Phase Equilibrium (Recommendations)19 Typically used for liquid phase fugacity calculationsUsed for special cases (like gases dissolving into liquid phase)Equations of state models Activity coefficient modelsEquations of State Models10ĬBE 417Unit Operations16Lecture: 416Overview17 Introduction UO course overview Equilibrium Stage separations What are Unit Operations Brief thermodynamics review Binary flash with energy balance Multicomponent flash17Activity Coefficient Models18 Isobutaneothers.7DePriester (equation fit)8 Sometimes the K values are nearly composition independenthand techniques of design/solution have used DePriester Charts (hydrocarbons):DePriester Chart7 Xylene ater richloroethylene oluene etrahydrofuran di-iso-PropylEther iso-Propanol n-Propanol Pentane Ketone Methyl-t-ButylEther Methanol Hexane Heptane Ether Ethanol Acetate Dioxane DimethylSulfoxide Dimethylformamide Dichloromethane 1,2-Dichloroethane Cyclohexane Chloroform tetrachloride n-Butanol Acetate Benzene Acetonitrile Acetone Acid 6 5. Phase Equilibrium (Alternate Form VLE)6Historically, when estimates were done by hand: tables or graph such as the well-known DePriester charts. Seader & Henley (2006)Phase Equilibrium (Recommendations)5 Relative volatility is a measure comparing the vapor pressures of the components in a liquid. Flow Chart: Methyl Vinyl Phosphate Pyrazole. Raoults LawPhase Equilibrium (Alternate Form VLE)4Historically, when estimates were done by hand: n-Propyl bromide 237.00 n-Propanol Recovery 475.00 Sodium hydroxide solution (50) 77.00 n-Propanol Loss 15.00. Typically used for liquid phase fugacity calculationsUsed for special cases (like gases dissolving into liquid phase)Typical simplifications:Ideal vapor phase A distillation column with two feeds is separating ethanol from water. A perusal of curves in figs 2 shows that the values of V. Create a Txy diagram for npentane and nhexane using Raoults Law and the data. Vapor phase: good liquid phase: good for HC or moderate high pressures (compressible liquid phase) are negative for N,N-diethylaniline with 1-propanol, +1-butanol, + 2-propanol, + 2-butanol, On other hand, an inversion in sign for the binary mixture containing N,N-diethylaniline with 1-pentanol was observed. CBE 417Unit Operations1Lecture: 1Overview2 Introduction UO course overview Equilibrium Stage separations What are Unit Operations Brief thermodynamics review Binary flash with energy balance Multicomponent flash2Vapor Liquid Equilibrium (VLE)3