[article]
| Titre : |
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 |
| Type de document : |
texte imprimé |
| Auteurs : |
Shunping Sun, Auteur ; Junfeng Wang, Auteur ; Zhibao Li, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
pp. 3783–3790 |
| Note générale : |
Chimie industrielle |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Hydrochloric acid |
| Résumé : |
Previous work has proved that the preparation method of anhydrous magnesium chloride by using the thermal decomposition of the complex [HAE]Cl·MgCl2·6H2O is a potential process for commercial application. Normally, the complex [HAE]Cl·MgCl2·6H2O is synthesized by reaction crystallization of aniline hydrochloride (C6H5NH2·HCl, [HAE]Cl) and bischofite (MgCl2·6H2O). 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. |
| ISSN : |
0888-5885 |
| En ligne : |
http://pubs.acs.org/doi/abs/10.1021/ie2013949 |
in Industrial & engineering chemistry research > Vol. 51 N° 9 (Mars 2012) . - pp. 3783–3790
[article] 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 [texte imprimé] / Shunping Sun, Auteur ; Junfeng Wang, Auteur ; Zhibao Li, Auteur . - 2012 . - pp. 3783–3790. Chimie industrielle Langues : Anglais ( eng) in Industrial & engineering chemistry research > Vol. 51 N° 9 (Mars 2012) . - pp. 3783–3790
| Mots-clés : |
Hydrochloric acid |
| Résumé : |
Previous work has proved that the preparation method of anhydrous magnesium chloride by using the thermal decomposition of the complex [HAE]Cl·MgCl2·6H2O is a potential process for commercial application. Normally, the complex [HAE]Cl·MgCl2·6H2O is synthesized by reaction crystallization of aniline hydrochloride (C6H5NH2·HCl, [HAE]Cl) and bischofite (MgCl2·6H2O). 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. |
| ISSN : |
0888-5885 |
| En ligne : |
http://pubs.acs.org/doi/abs/10.1021/ie2013949 |
|
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 in Industrial & engineering chemistry research, Vol. 51 N° 9 (Mars 2012)
