Purification of carbazole by solvent crystallization under two forced cooling modes

Cui-Ping Ye; Ya-Fei Qiao; Rui-Nan Wang; Wen-Ying Li

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Purification of carbazole by solvent crystallization under two forced cooling modes

Separation Science and Engineering | Updated：2026-01-06

- Purification of carbazole by solvent crystallization under two forced cooling modes
- Purification of carbazole by solvent crystallization under two forced cooling modes
- 中国化学工程学报（英文版） 2021年35卷第7期页码：173-179
- Affiliations：
  
  1. College of Environmental Science and Engineering, Taiyuan University of Technology,Jinzhong,China,030600
  2. Training Base of State Key Laboratory of Coal Science and Technology Jointly Constructed by Shanxi Province and Ministry of Science and Technology, Taiyuan University of Technology,Taiyuan,China,030024
- Author bio：
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- 纸质出版：2021
- Accepted：
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Cui-Ping Ye, Ya-Fei Qiao, Rui-Nan Wang, 等. Purification of carbazole by solvent crystallization under two forced cooling modes[J]. 中国化学工程学报（英文版）, 2021,35(7):173-179.

Cui-Ping Ye, Ya-Fei Qiao, Rui-Nan Wang, Wen-Ying Li. Purification of carbazole by solvent crystallization under two forced cooling modes[J]. Chinese Journal of Chemical Engineering, 2021, 35(7): 173-179.
Cui-Ping Ye, Ya-Fei Qiao, Rui-Nan Wang, 等. Purification of carbazole by solvent crystallization under two forced cooling modes[J]. 中国化学工程学报（英文版）, 2021,35(7):173-179. DOI：

Cui-Ping Ye, Ya-Fei Qiao, Rui-Nan Wang, Wen-Ying Li. Purification of carbazole by solvent crystallization under two forced cooling modes[J]. Chinese Journal of Chemical Engineering, 2021, 35(7): 173-179. DOI：

摘要

Abstract

To identify the effect of solvents and anthracene on the purification of carbazole

the solvent crystallization of carbazole was investigated with xylene

chlorobenzene and tetrachloroethylene (TCE) as solvents under two forced circulation cooling (FCC) modes. The co-crystalline experimental data were obtained from runs carried out at different anthracene levels between 1% (mass) and 10% (mass). The results showed that a uniform flake carbazole crystal obtained when using xylene and chlorobenzene under the FCC-1 mode with gradual cooling rate. Nevertheless

fine flake crystals grown under shock cooling of FCC-2 mode. It is beneficial to improving the purity of carbazole with chlorobenzene as solvent under cooling mode of FCC-1. Anthracene could promote the growth of carbazole in solution

and it has a significant influence on the purification of carbazole.

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