NUCLEATION AND CAPROLACTAM CRYSTAL-GROWTH IN SUSPENSION MELT CRYSTALLIZATION APPARATUS

Experiments on the nucleation rate and the crystal growth rate of capr olactam in a specially adapted to this purpose apparatus for melt crys tallization in suspension are presented. Hydrodynamics experiments hav e demonstrated that it is possible to use the apparatus as a MSMPR cry stallizer. The assumption that the linear crystal growth rate does not depend on the crystals size in the investigated system: caprolactam-0 .78 wt.% water has been proved. The effect of the linear crystal growt h rate, the suspension density and the specific power input on the sec ondary nucleation has been determined.