氯化铵结晶过程实验研究

doi:10.11962/1006-4990.2019-0306

Abstract

Abstract:

The thermodynamic and kinetic properties of ammonium chloride crystallization were investigated in a hybrid sus-pension crystallizer.A manganese nitrate aqueous solution with a mass fraction of 0.23% was prepared by using manganese nitrate as an additive,and the solubility and supersolubility of ammonium chloride in the solution were determined.The effect of manganese nitrate on the particle size distribution of ammonium chloride crystal was studied and the coefficient of variation of crystal was obtained.The effects of supersaturation on the linear growth rate and nucleation rate of ammonium chloride crystal were investigated,and the nucleation-growth kinetics equation was obtained.The results showed that the width of the metastable zone decreased with increasing temperature,and seed crystals were added,and the width of the metastable zone was narrowed.As the concentration of the manganese nitrate solution increased,the coefficient of variation of the crystal grad-ually decreased and tended to be gentle.When the concentration of manganese nitrate was gradually increased to 0.307%,the coefficient of variation of the crystal was hardly reduced.The linear growth rate and nucleation rate increased with the increase of solution supersaturation.The obtained kinetic equation agrees well with the experimental data and has certain industrial reference value.

Key words: ammonium chloride, crystallization, thermodynamics, kinetics, manganese nitrate

CLC Number:

TQ113.72

Wang Haohao,Da Tao,Ye Shichao. Experimental study on crystallization process of ammonium chloride[J]. Inorganic Chemicals Industry, 2020, 52(4): 49-52.

Figures/Tables 9

References 8

[1]	宫海燕, 李彩虹, 王佩佩 , 等. 杂质对溶液结晶过程影响的研究进展[J]. 化学与生物工程, 2010,27(3):9-12.
[2]	杨玉 . 氯化铵蒸发—冷却结晶过程研究[D]. 天津:天津大学, 2008.
[3]	陈侠, 郑伟峰, 徐璐 , 等. 复分解法氯化铵生产中冷却结晶过程研究[J]. 无机盐工业, 2016,48(4):35-37,41.
[4]	韩佳宾, 王静康 . 咖啡因在水和乙醇中介稳区的测定[J]. 天津大学学报, 2003,36(6):765-768.
[5]	Hao H X, Wang J K, Wang Y L . Solubility of dexamethasone sodium phosphate in different solvents[J]. Journal of Chemical & Engineer-ing Data, 2004,49(6):1697-1698.
[6]	彭思瑶, 施云海 . 硫酸铵介稳区宽度的研究及成核动力学计算[J]. 无机盐工业, 2018,50(1):41-45.
[7]	丁绪淮, 谈遒 . 工业结晶[M]. 北京: 化学工业出版社, 1985.
[8]	段兰娟, 叶世超, 张建华 , 等. 旋流流化床中五水硫酸铜结晶生长动力学研究[J]. 无机盐工业, 2018,50(8):38-40.

过饱和度 ΔC/（g·L^-1）	线性生长速率 G/（m·s^-1）	二次成核速率 B/（个·m^-3·s^-1）	晶核粒数密度 n⁰/（个·m^-1·m^-3）
0.96	8.12×10^-8	2.14×10⁴	2.64×10¹¹
1.06	1.22×10^-7	5.02×10⁴	4.11×10¹¹
1.26	1.57×10^-7	7.42×10⁴	4.70×10¹¹
1.36	1.61×10^-7	8.26×10⁴	5.22×10¹¹

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Experimental study on crystallization process of ammonium chloride

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