# Summary: Industrial Separation Processes | 9783110306699

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## Read the summary and the most important questions on Industrial Separation Processes | 9783110306699

• ### 2.1.1 Introduction

• #### When is separation by evaporation possible?

When there is a differece in volatility between compounds.
• #### What is the basis of planning an evaporation separation step?

The thermodynamics of the vapor-liquid equilibrium need to be known.
• ### 2.1.2 Vapor-liquid equilibria

This is a preview. There are 10 more flashcards available for chapter 2.1.2

• #### What is the vapor-liquid equilibrium and how can it be depicted?

The vapor-liquid equilibrium (VLE) is the composition of the phases at thermodynamic equilibrium.
• #### What is the distribution coëfficient Ki?

The distribution coëfficient is a constant that relates the concentration of component i in liquid with the concentration of i in vapor.
Ki is a function of temperature and pressure. It does not change with changing concentrations.
• #### How is the selectivity or relative volatility defined?

the higher this number the more efficient separation by distillation will be.
• #### What is Dalton's law?

Dalton's law relates the partial pressure of i to the concentration of i in vapor.
This is for ideal gases.
• #### Why is the relative volatility less sensitive to temperature than the equilibrium ratio?

The relative volatility is dependent on the vapor pressure.
• #### Does the relative volatility increase or decrease with increasing temperature?

In general the vapor pressure of the more volatile compound increases at a slower rate with increasing temperature than the less volatile compound. Therefor the relative volatility generally decreases with increasing temperature.
• #### What is a minimum boiling azeotrope?

A minimum boiling azeotrope boils at lower temperatures than each of the compounds in their pure state.
• #### What is a maximum boiling azeotrope?

A maximum boiling azeotrope boils at higher temperature than each of the compounds in their pure form.
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