Unit operations

thumb|upright|300px|Laboratory model of a still.1: The heat source to boil the mixture2: round-bottom flask containing the mixture to be boiled3: the head of the still4: mixture boiling-point thermometer5: the condenser of the still6: the cooling-water inlet of the condenser7: the cooling-water outlet of the condenser8: the distillate-receiving flask9: vacuum pump and gas inlet10: the receiver of the still11: the heat control for heating the mixture12: stirring mechanism speed control13: stirring mechanism and heating plate14: heating bath (oil/sand) for the flask15: the stirring mechanism (no

thumb|A 1912 Chicago Department of Health poster explains household pasteurization to mothers.

transport of thermal energy in physical systems

method to achieve any phenomenon that converts a mixture of chemical substance into two or more distinct product mixtures, which may be referred to as mixture, at least one of which is enriched in one or more of the initial mixture's constituents

thumb|Extruded aluminum with several hollow cavities; T-slot nut|T slots allow bars to be joined with special connectors.

chemical process

basic step in a process, involving a physical change or chemical transformation such as separation, crystallization, evaporation, filtration, polymerization, isomerization, and other reactions

process of mechanically manipulating a heterogeneous mixture to make it more homogeneous

Pultrusion is a continuous process for manufacture of fibre-reinforced plastics with constant cross-section. The term is a portmanteau word, combining "pull" and "extrusion". As opposed to extrusion, which pushes the material, pultrusion pulls the material.

the ratio of a particle’s sedimentation velocity to the applied acceleration causing the sedimentation

Hypothetical stage of matter

Micronization is the process of reducing the average diameter of a solid material's particles. Traditional techniques for micronization focus on mechanical means, such as milling and grinding. Modern techniques make use of the properties of supercritical fluids and manipulate the principles of solubility.

relation used in the field of fluid dynamics to calculate the pressure drop of a fluid flowing through a packed bed of solids