chapter  12
Pages 17

Perry and Chilton (1973) defined mixing as an operation "in which two or more ingredients in separate or roughly mixed condition are treated so that each particle of any one ingredient is as nearly as possible adjacent to a particle of each of the other ingredients." The term blending is synonymous with mixing, and segregation or demixing is the opposite. Mixing is a basic step in most process sequences, and it is normally carried out