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Determination of crystalline thermodynamics and behavior of anthracene in different solvents
AIChE Journal ( IF 3.7 ) Pub Date : 2018-01-11 , DOI: 10.1002/aic.16069
Cui-Ping Ye 1, 2 , Xiao-Xiao Ding 1 , Wen-Ying Li 1 , Hai Mu 1 , Wei Wang 1 , Jie Feng 1
Affiliation  

To screen suitable solvents for anthracene crystallization, the solubilities of anthracene and metastable zone width were determined in four different solvents, N,N‐dimethyl formamide (DMF), xylene, tetrachloroethylene, and diethylene glycol dimethyl ether from 30 to 80 °C at atmospheric pressure using a self‐made crystallizer. The cooling modes, solvents, and the effects of carbazole on the solvent crystallization process of anthracene were also investigated. The composition of mother liquors and solid products were measured by gas chromatography; the solids were analyzed by scanning electron microscope, X‐ray diffractometer, differential scanning calorimetry, granulometer, and fluorescence spectrometer. The results showed that a uniform anthracene crystal was obtained when using DMF under the forced circulation cooling mode. Solid solution of anthracene and carbazole was initially detected in solvent crystallization. The existence of carbazole in solution has an obvious effect on the crystal morphology of anthracene, to some extent, is beneficial to the crystal growth of anthracene. © 2018 American Institute of Chemical Engineers AIChE J, 64: 2160–2167, 2018

中文翻译:

蒽在不同溶剂中的结晶热力学和行为的测定

为了筛选适合蒽结晶的溶剂,在大气中30至80°C下,在四种不同的溶剂(N,N-二甲基甲酰胺(DMF),二甲苯,四氯乙烯和二甘醇二甲醚)中测定蒽的溶解度和亚稳区域宽度用自制结晶器加压。还研究了冷却方式,溶剂以及咔唑对蒽溶剂结晶过程的影响。母液和固体产物的组成通过气相色谱法测量。固体通过扫描电子显微镜,X射线衍射仪,差示扫描量热法,粒度仪和荧光光谱仪进行分析。结果表明,在强制循环冷却模式下使用DMF可以得到均匀的蒽晶体。最初在溶剂结晶中检测到蒽和咔唑的固溶体。溶液中咔唑的存在对蒽的晶体形态有明显的影响,在一定程度上有利于蒽的晶体生长。©2018美国化学工程师学会AIChE J,64:2160–2167,2018
更新日期:2018-01-11
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