Laminae column foaming is a special type of column foaming (foam separation). The foam is degraded to fast-moving, nearly planar laminae, which are rinsed by reflux. The method is distinguished by a simple technique, quick establishment of the steady state, and the possibility of working even with low-foaming solutions and handling small quantities of substances. The uncomplicated surface formation and laminae/wall system enable the principles of foam separation to be studied. The phenomena of laminae column foaming are described, as are types of laminae producers, countercurrent columns, and laminae destroyers, and a complete apparatus with circulating gas. Column foaming is compared with column distillation and column crystallization, and its place in the system of column separation methods is discussed.