Abstract
In order to analyze of crystallization processes, a tool with spreadsheet software such as Microsoft Excel has been developed to calculate operation parameters for crystallization based on the design theory of an industrial crystallizer. Using this tool, we calculated the nucleation rate and the linear growth rate that are the basis for analysis of crystallization phenomena, and we analyzed the variation of monthly aging and the start-up of the real industrial crystallization processes of two products. As a result, it was observed that product X (sulfated compound) had been produced with nearly perfect stability. On the other hand, the phenomena in the crystallizer at the start-up of product Y (phosphate compound) could be understood. This tool is effective for accumulation and analysis of operation data in the crystallization processes.
