B PERFORMING OPERATIONS; TRANSPORTING
B01 PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01F MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
25/00 Flow mixers; Mixers for falling materials, e.g. solid particles
B01F25/42 in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions