separation process
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
refining
process of purifying a chemical substance
extraction
chemical separation of a substance from a matrix
pressure swing adsorption
method of gas concentration using selective adsorbtion under pressure
coagulation
in water treatment, addition of compounds that promote the clumping of fine floc into larger floc so that they can be more easily separated from the water