Conventional melt crystallization processes are either based on suspension growth or layer growth. The pros and cons of both techniques are well known. In an attempt to combine their strong points, a hybrid process has been developed. Large particles with a narrow size distribution are produced continuously and rapidly by solidification of droplets. Subsequently the particles are suspended and purified in a stirred vessel or gravity wash column. Two main process items are addressed in this paper: (i) particle production and characterization and (ii) particle purification. The experimental work was carried out with caprolactam as the main component with two eutectic forming organic impurities (2000 ppm each) and water (1 wt%). The particles are characterized by size, shape and internal structure. The particles consist of a skeleton of caprolactam crystals. The impurity is mainly located in the interstitial space or pores between the crystals. A model that describes the purification of porous and crystalline particles is presented. The model parameters were obtained from batch-wise experiments carried out under well-defined 4 conditions in a stirred vessel. The purification rate constant was in the range (5.3-14) x 10(-4) s(-1) depending on the particle type. The mass transfer coefficient was (1.0-2.4) x 10(-7) m s(-1). The value of the mass transfer coefficient corresponded well to a pore diffusion model. Depending on particle type 94-99% of impurities were removed.