Reaction Engineering Approach to Crystallization: Rate Process Intensification in Dissolution-Crystallization Reactions

这项建议致力于表征溶解和结晶的机制，当稀溶的盐是由颗粒物质的溶解产生的。特别是，该工作的重点是利用微相强化反应过程。最近已证明，极小颗粒或微晶的存在可以提高从一种相到另一种相的传输速度。这项工作的独特之处在于，不会添加外部产生的微相，反应本身将产生微相。这一过程被称为反应结晶；而它又属于一类被称为“过程强化”的研究。从反应工程的角度研究结晶是一种趋势的一部分。关于发展对所涉及的复杂相互作用的理论分析，然后将其应用于溶解-沉淀过程的设计的额外挑战。

This proposal strives to characterize the mechanism of dissolution and crystallization when a sparingly soluble salt is produced from the dissoultion of particulate material. In particular, the work focuses on the intensification of tis prate process by the use of microphases. The presence of very small particles or crystallites has been recentl shown to enhance the rate of transport from one phase to another. The unique aspect of this work is that no externally produced microphase will be added, and the reaction itself will produce the microphase. This process has been termed reaction crystallization; and it, in turn, falls under a class of research called "process intensification". It is part of a trend to approach crystallization studies from a reaction engineering point of view. On additional challenge to develop theoretical analysis of the complex interactions involved and then apply them to the design of dissolution - precipitation processes.