结晶分离技术新进展

New progress in research on crystallization technology

概述了结晶分离理论和模拟优化的发展 ,综述了冷却剂直接接触冷却结晶、反应结晶、蒸馏 结晶耦合、氧化还原 结晶液膜、萃取结晶、磁处理结晶等结晶分离方法。合理设计结晶器及结晶工艺是实现结晶分离工业化的可靠保证 ,对降膜结晶装置、Bremband结晶工艺和板式结晶器进行评价。指出今后需深入进行新型结晶分离装置与工艺、工艺的工业化、结晶过程传热传质机理方面的研究。

The crystallization separation theory and simulation-optimization in solution crystallization are outlined. The crystallization processes such as direct cooling crystallization, reaction-crystallization, distillation-crystallization coupling, redox-crystallization liquid membrane, extraction-crystallization, magnetization-crystallization and so on are summarized. Reasonable designing of crystallizer and crystallization technology is reliable guarantee for industrialization of crystallization processes. The falling-film crystallizer, Bremband crystallization technology and the plate type crystallizer are evaluated. It is pointed out that the new crystallization separation unit and technology, technology industrialization, the mechanism of heat and mass transfer of crystallization process need to be further studied.