Solubility and Self-Consistent Modeling of Aniline Hydrochloride in H-Mg-Na-Ca-Al-Cl-H2O System at the Temperature Range of 288-348 K

Solubility and Self-Consistent Modeling of Aniline Hydrochloride in H-Mg-Na-Ca-Al-Cl-H2O System at the Temperature Range of 288-348 K
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288-348 K 温度范围内盐酸苯胺在 H-Mg-Na-Ca-Al-Cl-H2O 体系中的溶解度及自洽模拟

DOI:
10.1021/ie2013949
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发表时间:
2012-02
期刊:
Industrial & Engineering Chemistry Research
影响因子:
--
通讯作者:
Li, Zhibao
Li, Zhibao
中科院分区:
其他
文献类型:
--
作者:
Sun, Shunping;Wang, Junfeng;Li, Zhibao

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前期工作证明,利用配合物[HAE]Cl中心点MgCl 2中心点6 H(2)O热分解制备无水氯化镁的方法是一种具有工业应用潜力的工艺。通常,络合物[HAE]Cl中心点MgCl 2中心点6 H(2)O是通过苯胺盐酸盐(C6 H5 NH 2中心点HCl,[HAE]Cl)和水氯镁石(MgCl 2中心点6 H(2)O)反应结晶来合成的。研究[HAE]Cl在盐酸和各种氯化物盐溶液中的溶解度对这一新工艺的开发、分析和工程设计具有重要意义。本工作是对[HAE]Cl在不同氯化物介质中溶解度的系统研究的继续。[HAE] Cl在不同浓度HCl(1.19-6.98 www.example.com(-1))、NaCl(1.19-6.98)中的溶解度mol.kg在288 - 348 K温度范围内,用动态法测定了CaCl_2(0.5-3.8 mol·kg ~(-1))、CaCl_2(0.5-4.5 mol·kg ~(-1))、AlCl_3(0.5-2.8 mol·kg ~(-1))及其混合溶液中的CaCl_2、AlCl_3的含量。为了提高AspenPlus的预测能力,针对不同温度下[HAE]Cl在H-Mg-Na-Ca-Al-Cl-H2O体系中的溶解度数据,通过回归大气压下[HAE]Cl在单一电解质溶液(如HCl、NaCl、CaCl 2和AlCl 3)中的实验溶解度,获得了新的模型参数。利用新获得的[HAE]Cl-NaCl、[HAE] Cl-CaCl 2、[HAE] Cl-AlCl 3和AlCl 3-H2O的NRTL(ENRTL)相互作用参数以及AspenPlus中NaCl-H2O和CaCl 2-H2O的默认参数,建立了[HAE]-H-Mg-Na-Ca-Al-Cl-H2O体系的自洽模型,其溶解度实验值与预测值的最大相对偏差为4.3%。
Previous work has proved that the preparation method of anhydrous magnesium chloride by using the thermal decomposition of the complex [HAE]Cl center dot MgCl2 center dot 6H(2)O is a potential process for commercial application. Normally, the complex [HAE]Cl center dot MgCl2 center dot 6H(2)O is synthesized by reaction crystallization of aniline hydrochloride (C6H5NH2 center dot HCl, [HAE]Cl) and bischofite (MgCl2 center dot 6H(2)O). The study on the solubility of [HAE]Cl in hydrochloric acid and various chloride salt solutions plays a significant role in the development, analysis, and engineering design for this new process. This work is a continuation of our systematic study of the solubility of [HAE]Cl in different chloride media, The solubility of [HAE]Cl in different concentrations of HCl (1.19-6.98 mol.kg(-1)), NaCl (0.5-3.8 mol.kg(-1)), CaCl2 (0.5-4.5 mol.kg(-1)), AlCl3 (0.5-2.8 mol.kg(-1)), and their mixed solutions was determined using a dynamic method in the temperature range from 288 to 348 K. With the purpose of improving AspenPlus's prediction capability, in regard to [HAE]Cl solubility data in the H-Mg-Na-Ca-Al-Cl-H2O systems at various temperatures, new model parameters were obtained via the regression of the experimental solubility of [HAE]Cl in single electrolyte solutions, such as HCl, NaCl, CaCl2, and AlCl3, under atmospheric pressure. With the newly obtained electrolyte NRTL (ENRTL) interaction parameters for [HAE]Cl-NaCl, [HAE]Cl-CaCl2, [HAE]Cl-AlCl3, and AlCl3-H2O, and default parameters for NaCl-H2O and CaCl2-H2O in AspenPlus, a self-consistent model for the system [HAE]-H-Mg-Na-Ca-Al-Cl-H2O was established with the maximum relative deviation of 4.3% between experimental and predicted solubility values.
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