Patent ID: 6475384
Filing Date: 2002-11-05
Classification: B03D,C02F

Abstract:
A flotation reactor comprising:a flotation reactor housing having respective walls; inner and outer walls in said reactor defining between them a narrow upwardly extending flotation space opening into a wider outlet for flotated solids; at least one inlet for a flotation liquid and for flotatable solids communicating with said flotation space at a lower portion thereof whereby the flotation liquid and flotatable solids rise between said inner and outer walls in said space; means for introducing into said reactor housing a reactive liquid which flows along said walls and is catalytically activatable to liberate a flotation-promoting gas to effect flotation of said solids in said flotation liquid whereby flotated solids are formed; and a catalyst fixed to and coating at least some of said walls and capable of activating said reactive liquid to produce said flotation-promoting gas.