Crystal Habit Regulation of Spherical and Plate-Like Sodium Chloride

Related Articles

Abstract

The crystal habit can affect the crystal mobility, bulk density and other properties. At present, sodium chloride exists mainly in the way of cubic crystal, which results in its caking easily in its packaging, transportation and other processes. In order to solve the caking problem of cubic sodium chloride and develop the multi-species edible salt, we studied the effects of multiple operating conditions in the evaporation crystallization experiment on the crystal habit of sodium chloride. In addition, the changes of crystal habit of cubic sodium chloride dissolved in methanol-water mixed solvent were studied and the effects of small-scale liquid evaporation on the crystal growth of sodium chloride were also studied. It can be concluded that the spherical sodium chloride crystals could be obtained by using the optimized operating conditions in the evaporation crystallization experiment. Moreover, sodium chloride can dissolve into a spherical crystal when the cubic sodium chloride is dissolved in a methanol-water mixed solvent,which having a mass fraction of methanol about 0.5. Finally, it can be found that the plate-like crystal with large particle size can be obtained by using the method of small-scale liquid evaporation.

	Service

	Email this article
	Add to my bookshelf
	Add to citation manager
	Email Alert
	RSS
	Articles by authors
	Zhu Minghe
	Zhang Xu
	Jin Shasha
	Gong Junbo

Keywords： sodium chloride； crystal habit； spherical crystal； plate-like crystal

Received 2017-09-27;

About author:

Cite this article:

Zhu Minghe, Zhang Xu, Jin Shasha, Gong Junbo.Crystal Habit Regulation of Spherical and Plate-Like Sodium Chloride[J] Chemcial Industry and Engineering, 2018,V35(3): 55-61

[1] 薄向利,祁增忠, 夏代宽,等. 树枝状结晶氯化钠的研究[J]. 海湖盐与化工, 2006,35(1):1-5 Bo Xiangli, Qi Zengzhong, Xia Daikuan, et al. The study on sodium chloride dendrite[J]. Sea-Lake Salt and Chemical Industry, 2006,35(1):1-5(in Chinese)
[2] 王丽君,赵建国,杜威,等. 食用盐晶习控制研究进展[J]. 盐科学与化工, 2017,46(6):10-12 Wang Lijun,Zhao Jianguo, Du Wei, et al. Research progress on the control of edible salt crystal habit[J]. Journal of Salt Science and Chemical Industry, 2017,46(6):10-12(in Chinese)
[3] Takiyama H, Otsuhata T, Matsuoka M. Morphology of NaCl crystals in drowning-out precipitation operation[J]. Chemical Engineering Research and Design, 1998, 76(7):809-814
[4] 翁贤芬. 添加剂对氯化钠晶习的影响研究[J]. 盐业与化工, 2009,38(4):1-3 Weng Xianfen. The effect of additive on sodium chloride crystal practice[J]. Journal of Salt and Chemical Industry, 2009,38(4):1-3(in Chinese)
[5] 翁贤芬. 大颗粒氯化钠的制备研究[J]. 盐业与化工, 2009,38(5):18-19 Weng Xianfen. Preparation of large size sodium chloride[J]. Journal of Salt and Chemical Industry, 2009,38(5):18-19(in Chinese)
[6] Alander E M, Rasmuson A C. Mechanisms of crystal agglomeration of paracetamol in acetone-water mixtures[J]. Industrial & Engineering Chemistry Research, 2005, 44(15):5788-5794
[7] Hartman P,Perdok W G. On the relations between structure and morphology of crystals[J]. Acta Crystallographica,1955,8:49-52
[8] 李增强,韩杰才. 评价金刚石刀具各向异性的周期键链模型[J]. 纳米技术与精密工程, 2011,9(2):174-179 Li Zengqiang, Han Jiecai. Periodic bond chain model for estimation of the anisotropy of diamond cutting tools[J]. Nanotechnology and Precision Engineering, 2011,9(2):174-179(in Chinese)
[9] Snyder R C, Doherty M F. Faceted crystal shape evolution during dissolution or growth[J]. American Institute of Chemical Engineers, 2007, 53(5):1337-1348
[10] 唐睿康. 表面能与晶体生长/溶解动力学研究的新动向[J]. 化学进展, 2005,17(2):368-376 Tang Ruikang. Progress in the studies of interfacial energy and kinetics of crystal growth/dissolution[J]. Progress in Chemistry, 2005,17(2):368-376(in Chinese)
[11] Nakouzi E, Goldstein R E, Steinbock O. Do dissolving objects converge to a universal shape?[J]. Langmuir the ACS Journal of Surfaces & Colloids, 2015, 31(14):4145-4150