Lloyd C. Brown - San Diego CA Rudi Klasen - San Diego CA
Assignee:
GA Technologies Inc. - San Diego CA
International Classification:
B01D 1102
US Classification:
422261
Abstract:
A method and apparatus for the countercurrent contacting of solid particles with a fluid is disclosed. The contacting is effected within a multistage tower, each stage having a weir means regulating the flow of particles within and from each chamber so that all particles receive approximately the same exposure to the contacting fluid. The disclosed design is readily scaled up to increase capacity without requiring proportional increases in the vertical dimension which are costly and might result in damage to the particles. The method and apparatus are especially adapted for washing salt from alumina microspheres.