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Fraktionierte Kristallisation

1980; Wiley; Volume: 52; Issue: 7 Linguagem: Inglês

10.1002/cite.330520704

1522-2640

Gustaf Matz,

Freezing and Crystallization Processes

Abstract Fractional crystallization . The operations of fractional crystallization, comprising at least a single crystallizing and remelting (redissolution) step, differ from each other in the number of the realized theoretical stages and the method of separating the crystallisate and residual melt or mother liquor. Fractional crystallization from solutions resemble liquid‐liquid extraction, but fractional crystallization from melts is similar to rectification. There is a choice between operations with a series of temperature‐controlled vessels and counter‐current operations. Many fractional crystallizers are purifiers for high qualities; crystals generally exist only within them apparatus.