A process for the production of a crystallized product, the process comprising performing two or more crystallization stage processes in series, wherein: (a) each crystallization stage process comprises: (i) crystallizing a liquid feed stream, the feed stream comprising a liquid secondary component and a liquid product component having a melting point higher than that of the liquid secondary component, in a crystallizer operating at a temperature sufficient to crystallize at least a portion of the liquid product component to form a slurry effluent comprising product component crystals and the liquid secondary component; and, (ii) at least partially separating the product component crystals and the liquid secondary component of the slurry effluent in a separation unit selected from the group consisting of a filter column, a wash column, and a centrifuge to form a filtrate comprising the liquid product component and the liquid secondary component and an enriched product stream comprising the product component crystals; (b) the liquid feed stream for each crystallization stage other than the first crystallization stage comprises the filtrate from the preceding, upstream crystallization stage; and, (c) the separation unit in at least one of the crystallization stages is a filter column. (a) each crystallization stage process comprises: (i) crystallizing a liquid feed stream, the feed stream comprising a liquid secondary component and a liquid product component having a melting point higher than that of the liquid secondary component, in a crystallizer operating at a temperature sufficient to crystallize at least a portion of the liquid product component to form a slurry effluent comprising product component crystals and the liquid secondary component; and, (ii) at least partially separating the product component crystals and the liquid secondary component of the slurry effluent in a separation unit selected from the group consisting of a filter column, a wash column, and a centrifuge to form a filtrate comprising the liquid product component and the liquid secondary component and an enriched product stream comprising the product component crystals; (i) crystallizing a liquid feed stream, the feed stream comprising a liquid secondary component and a liquid product component having a melting point higher than that of the liquid secondary component, in a crystallizer operating at a temperature sufficient to crystallize at least a portion of the liquid product component to form a slurry effluent comprising product component crystals and the liquid secondary component; and, (ii) at least partially separating the product component crystals and the liquid secondary component of the slurry effluent in a separation unit selected from the group consisting of a filter column, a wash column, and a centrifuge to form a filtrate comprising the liquid product component and the liquid secondary component and an enriched product stream comprising the product component crystals; (b) the liquid feed stream for each crystallization stage other than the first crystallization stage comprises the filtrate from the preceding, upstream crystallization stage; and, (c) the separation unit in at least one of the crystallization stages is a filter column.