Abstract: A packed counter-current column in which the gas and the liquid is contacted in a column packed with layers of reproducible elements of regular polygonal section, each of which has a lower part shaped to form a nozzle by overlapping of two opposite walls of the element, which walls also form slits between themselves and the other walls, and an upper part including an arcuate or angular bend which narrows the upper part of the element. The layers may be spaced apart by from 0 to 3 times the height of a layer and superimposed or rotated in a horizontal plane relative to each other by an optional angle. The configuration introduces to the normal counter-current flow an additional conflow vortex and cross-flow motion in the elements and a turbulent motion between the layers.