Determination and Chemical Modeling of Phase Equilibria for the Glycine-KCl-NaCl-H2O System and Its Application To Produce Crystals with Anticaking Characteristics
文献类型：期刊论文
| 作者 | Gao, Wencheng; Li, Zhibao |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2012-06-20 |
| 卷号 | 51期号:24页码:8315-8325 |
| 关键词 | MOLAL THERMODYNAMIC PROPERTIES AMINO-ACIDS AQUEOUS-SOLUTIONS ACTIVITY-COEFFICIENTS TRANSPORT-PROPERTIES SIZE-REDUCTION HIGH-PRESSURES 298.15 K SOLUBILITY TEMPERATURES |
| ISSN号 | 0888-5885 |
| 通讯作者 | Li, ZB |
| 英文摘要 | The phase equilibria of the glycine-KCl-NaCl-H2O system were determined in the concentrations up to 3.33 mol.kg(-1) over the temperature range from 283.2 to 363.2 K using a dynamic method. A rigorous chemical model for the glycine-KCl-NaCl-H2O system was established by the Pitzer model with the help of an OLI platform. With the equilibrium constants of dissociation reactions obtained by standard-state thermodynamic data, the new Pitzer model parameters were harvested by regressing solubility of the system. These newly obtained parameters were used to accurately predict the multiple saturated points at the temperature range from 283.2 to 363.2 K. The phase behavior of the ternary glycine-KCl-H2O and glycine-NaCl-H2O system at 298.2 and 343.2 K were successfully visualized with lucidity on an equilateral triangle. To investigate the effect of glycine on the morphology of KCl, the KCl crystals were produced from glycine solution with different concentration (17-25% w/v) by evaporation at ambient temperature. The glycine (25% w/v)-modified KCl crystal changed its morphology from native cubic to hexagonal prism form with the angle of repose from 32 degrees to 23.8-25.8 degrees, indicating a good flowability and anticaking characteristics. Finally, KCl supersaturation variation with evaporation time was simulated with aid of the chemical model established in present study to elucidate the influence of glycine concentration on the anticaking characteristics of KCl crystal. All the results generated from this study will provide the fundamentals for industrial application to produce crystals with anticaking characteristics. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | MOLAL THERMODYNAMIC PROPERTIES ; AMINO-ACIDS ; AQUEOUS-SOLUTIONS ; ACTIVITY-COEFFICIENTS ; TRANSPORT-PROPERTIES ; SIZE-REDUCTION ; HIGH-PRESSURES ; 298.15 K ; SOLUBILITY ; TEMPERATURES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000305358600016 |
| 公开日期 | 2013-10-16 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3583]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Wencheng,Li, Zhibao. Determination and Chemical Modeling of Phase Equilibria for the Glycine-KCl-NaCl-H2O System and Its Application To Produce Crystals with Anticaking Characteristics[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2012,51(24):8315-8325. |
| APA | Gao, Wencheng,&Li, Zhibao.(2012).Determination and Chemical Modeling of Phase Equilibria for the Glycine-KCl-NaCl-H2O System and Its Application To Produce Crystals with Anticaking Characteristics.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,51(24),8315-8325. |
| MLA | Gao, Wencheng,et al."Determination and Chemical Modeling of Phase Equilibria for the Glycine-KCl-NaCl-H2O System and Its Application To Produce Crystals with Anticaking Characteristics".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 51.24(2012):8315-8325. |
入库方式： OAI收割
来源：过程工程研究所
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