ION EXCHANGER Russian patent published in 2012 - IPC B01D15/04 

FIELD: process engineering.

SUBSTANCE: invention relates to chemical industry and may be used for ion exchange processes in chemical processing industry. Proposed ion exchanger is equipped with top and bottom drain-and-distribute devices. Each of the latter represents a fluid passage package with inner and outer taper surfaces and rings alternating with distance pieces to define the size of flow slits. Note here that outer surface cone opening is smaller than that of inner surface.

EFFECT: efficient recovery of ion-exchange resin by intensive and uniform field of loose layer mixing.