合成苏氨酸的研究（Ⅳ）──DL－苏氨酸的光学拆分

Shudies on Synthesis of Threonine(Ⅳ)──The Resolution of DL-Threonine

本文研究了用优先结晶法拆分ＤＬ－苏氨酸的有关问题，诸如（Ｌ－Ｔｈｒ＋Ｄ－Ｔｈｒ＋Ｈ２Ｏ）三元体系溶解度数据、“平液”及“贫液”拆分问题、拆分速度对晶种的依存、过饱和度的选择、连续拆分设想及间歇拆分示例等，为工业化过程提供了重要的实验依据。

Some studies on resolution of DL-Threonine by perferential crystallization(by crystal seed),such as solubilities of ternary system L-Thr+D-Thr+H2O at different temperaturse,possibility of resolution by'equal' and 'poor' solutions,selection of appropriate supersaturated degrees,have been performed.