Chemical Equilibrium Modeling and Experimental Measurement of Solubility for Friedel's Salt in the Na-OH-Cl-NO3-H2O Systems up to 200 degrees C
文献类型：期刊论文
| 作者 | Ma, Jiayu; Li, Zhibao |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2010-10-06 |
| 卷号 | 49期号:19页码:8949-8958 |
| 关键词 | partial molal properties calcium-sulfate high-pressures transport-properties aqueous-solutions thermodynamic properties activity-coefficients strong electrolytes temperatures standard |
| ISSN号 | 0888-5885 |
| 其他题名 | Ind. Eng. Chem. Res. |
| 中文摘要 | A chemical model for the solubility of Friedel's salt (FS, 3CaO center dot Al2O3 center dot CaCl2 center dot 10H(2)O) was developed. The model was built with the help of the OLI platform via regression of experimental solubility data for FS in the Na-OH-CI-NO3-H2O systems. The solubility of FS in water was measured using a batch nickel autoclave over the temperature range of 20-200 degrees C, and the solubility product of FS (log(10) K-sp was obtained. It was found that the solubility of FS in water shows a maximum value as a function of temperature. The solubility of ES in 0-5 mol/L NaOH and 0-2.5 mol/L NaCl solutions was found to decrease with increasing NaOH and NaCl concentrations, because of the common ion effect; however, in 0-2.5 mol/L NaNO3 solutions, it was found to increase because of complexation. During the regression analysis, it was found that CaOH+ plays an important role in solubility modeling, and its dissociation constant was determined by an empirical equation. New Bromley-Zemaitis activity coefficient model parameters for the Ca2+-OH, CaOH+-0H(-), and CaCl+-OH- ion pairs were also regressed, using the experimental solubility data generated in the present study. The new model was shown to successfully predict the solubility of FS in mixed NaOH + NaNO3 solutions not used in model parametrization. With the aid of the newly developed model, the concentration and temperature effects on calcium species distribution were analyzed. |
| 英文摘要 | A chemical model for the solubility of Friedel's salt (FS, 3CaO center dot Al2O3 center dot CaCl2 center dot 10H(2)O) was developed. The model was built with the help of the OLI platform via regression of experimental solubility data for FS in the Na-OH-CI-NO3-H2O systems. The solubility of FS in water was measured using a batch nickel autoclave over the temperature range of 20-200 degrees C, and the solubility product of FS (log(10) K-sp was obtained. It was found that the solubility of FS in water shows a maximum value as a function of temperature. The solubility of ES in 0-5 mol/L NaOH and 0-2.5 mol/L NaCl solutions was found to decrease with increasing NaOH and NaCl concentrations, because of the common ion effect; however, in 0-2.5 mol/L NaNO3 solutions, it was found to increase because of complexation. During the regression analysis, it was found that CaOH+ plays an important role in solubility modeling, and its dissociation constant was determined by an empirical equation. New Bromley-Zemaitis activity coefficient model parameters for the Ca2+-OH, CaOH+-0H(-), and CaCl+-OH- ion pairs were also regressed, using the experimental solubility data generated in the present study. The new model was shown to successfully predict the solubility of FS in mixed NaOH + NaNO3 solutions not used in model parametrization. With the aid of the newly developed model, the concentration and temperature effects on calcium species distribution were analyzed. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | PARTIAL MOLAL PROPERTIES ; CALCIUM-SULFATE ; HIGH-PRESSURES ; TRANSPORT-PROPERTIES ; AQUEOUS-SOLUTIONS ; THERMODYNAMIC PROPERTIES ; ACTIVITY-COEFFICIENTS ; STRONG ELECTROLYTES ; TEMPERATURES ; STANDARD |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000282161700009 |
| 公开日期 | 2013-11-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6277]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Jiayu,Li, Zhibao. Chemical Equilibrium Modeling and Experimental Measurement of Solubility for Friedel's Salt in the Na-OH-Cl-NO3-H2O Systems up to 200 degrees C[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2010,49(19):8949-8958. |
| APA | Ma, Jiayu,&Li, Zhibao.(2010).Chemical Equilibrium Modeling and Experimental Measurement of Solubility for Friedel's Salt in the Na-OH-Cl-NO3-H2O Systems up to 200 degrees C.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,49(19),8949-8958. |
| MLA | Ma, Jiayu,et al."Chemical Equilibrium Modeling and Experimental Measurement of Solubility for Friedel's Salt in the Na-OH-Cl-NO3-H2O Systems up to 200 degrees C".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 49.19(2010):8949-8958. |
入库方式： OAI收割
来源：过程工程研究所
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