Introduction Flashcards
Two or more phases mix, but remain physically separate.
Heterogenous Mixture
The constituent phases are indistinguishable, having merged into a single uniform phase, with its original parts undetectable even at very high magnification.
Homogenous Mixture
Unit operation involving separation of components by transfer of mass between phases.
Separation Process
The two phases can be mixed together in a vessel and then separated.
Single-Stage Process
The phases are mixed in one stage, separated, and then contacted again.
Multiple-stage process
In this process, a component is removed from a gas stream by treatment with a liquid.
Absorption
This is an operation whereby components of a liquid mixture are separated by boiling because of their differences in vapor pressure.
Distillation
A solute in a liquid solution is removed by contacting with another liquid solvent that is relatively immiscible with the solution.
Liquid-Liquid Extraction
This process involves treating a finely divided solid with a liquid that dissolves out and removes a solute contained in the solid.
Leaching
This process involves the separation of a solute from a fluid by diffusion of this solute from a liquid or gas through semipermeable barrier.
Membrane Separation
In this process, a component of a gas or liquid stream is removed and adsorbed by a sold adsorbent.
Adsorption
this process removes certain ions in solution from a liquid by the use of an ion-exchange solid.
Ion Exchange
Unit of equipment in which two dissimilar phases are brought into intimate contact with each other and then are mechanically separated.
Stage
Defined as one where the effluent phases are in equilibrium, so that a longer time of contact will bring about no additional change in composition.
Stage
No further net change of composition of the phases is possible for a given set of operating conditions.
Equilibrium
