赤藓糖醇在水中的结晶热力学及结晶过程研究

摘要

采用合成法测定了赤藓糖醇在水中的溶解度，并用修正的Apelblat方程和λh方程对其进行了关联，模型预测精度均可满足工业应用，采用修正的van’t Hoff方程和Apelblat方程计算了赤藓糖醇在水中的溶解焓、熵和吉布斯自由能；基于实验测定的结晶热力学数据，采用FBRM-PVM对赤藓糖醇冷却结晶过程进行了研究，研究结果为赤藓糖醇工业结晶过程的工艺优化和结晶设备的设计提供重要的基础数据。

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	王海蓉
	张春桃
	梁文懂

关键词：赤藓糖醇；结晶热力学；冷却结晶

Abstract：

The solubilities of meso-Erythritol in water were experimentally measured from 283.15 K to 363.15 K at atmospheric pressure by employing the synthetic method. The experimental data were correlated by using the modified Apelblat equation and λh equation, the accuracy of which could meet the need of their industrial use. The dissolution enthalpy, dissolution entropy and molar Gibbs energy of the dissolution of meso-Erythritol in water were then calculated. The cooling crystallization of meso-Erythritol had been studied by using FBRM-PVM on the basis of the measured crystallization thermodynamics data. The experimental data and the correlation equations in this work can be used as essential data and models in the industrial manufacture process optimization and crystallizer design of meso-Erythritol.

Keywords： meso-Erythritol； crystallization thermodynamics； cooling crystallization

Received 2017-01-01;

Fund:

国家自然科学基金（21776225）和湖北省教育厅科学技术研究计划重点项目（D20151101）。

Corresponding Authors: 张春桃,E-mail:zhangchuntao@wust.edu.cn。 Email: zhangchuntao@wust.edu.cn

About author: 王海蓉(1976-),女,硕士,工程师,现从事工业结晶方面的研究。

引用本文:

王海蓉, 张春桃, 梁文懂.赤藓糖醇在水中的结晶热力学及结晶过程研究[J]. 化学工业与工程, 2018,35(3): 50-54

Wang Hairong, Zhang Chuntao, Liang Wendong.Crystallization Thermodynamics and Its Crystallization Process of Meso-Erythritol in Water[J]. Chemcial Industry and Engineering, 2018,35(3): 50-54

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