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首页> 外文期刊>Crystal growth & design >A Novel Design Approach To Scale Up the Temperature Cycle Enhanced Deracemization Process: Coupled Mixed-Suspension Vessels
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A Novel Design Approach To Scale Up the Temperature Cycle Enhanced Deracemization Process: Coupled Mixed-Suspension Vessels

机译:扩大温度循环的增强除气工艺的新设计方法:混合悬浮容器

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摘要

An improved process for the deracemization of a racemic conglomerate suspension of enantiomorphs has been created based on principles developed in an earlier method using temperature fluctuations. The method consists of circulating the suspension between two vessels, each controlled at a specific temperature in order to make the, process more effective and faster to achieve a homochiral solid state. Crystals in the suspension were partially dissolved in the hot vessel, and the remaining crystals were regrown in the cold vessel. The crystals in the cold vessel have a longer residence time than those in the hot vessel to allow more time for the crystal growth process. The results show that complete deracemization can be achieved via this process far more rapidly than by using the previous temperature cycling (one-vessel) process. Moreover, the new process could easily be scaled-up to an industrial scale. The current process can be an effective alternative to currently used enantiopurification methods, with simple processing implementation and low cost.
机译:基于使用温度波动的较早方法中开发的原理,已经创建了一种对映体的消旋团聚体悬浮液的脱硝的改进方法。该方法包括使悬浮液在两个容器之间循环,每个容器均控制在特定温度下,以使该方法更有效,更快地达到同手性固态。悬浮液中的晶体部分溶解在热容器中,其余的晶体在冷容器中重新生长。冷容器中的晶体比热容器中的晶体具有更长的停留时间,从而为晶体生长过程留出更多时间。结果表明,与使用先前的温度循环(单容器)工艺相比,通过此工艺可以实现完全脱硝。此外,新工艺可以轻松地扩大到工业规模。当前的方法可以以简单的加工实现和低成本来替代当前使用的对映纯化方法。

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