Nucleation kinetics of nesquehonite (MgCO3 center dot 3H(2)O) in the MgCl2-Na2CO3 system
文献类型：期刊论文
| 作者 | Cheng, Wenting; Li, Zhibao |
| 刊名 | JOURNAL OF CRYSTAL GROWTH
 |
| 出版日期 | 2010-04-15 |
| 卷号 | 312期号:9页码:1563-1571 |
| 关键词 | Nucleation Phase equilibria Supersaturated solutions Growth from solutions Inorganic compounds |
| ISSN号 | 0022-0248 |
| 通讯作者 | Li, ZB |
| 英文摘要 | The nucleation of nesquehonite (MgCO3 center dot 3H(2)O) in MgCl2-Na2CO3 system with and without the addition of NaCl was studied within a supersaturation range of 1.06-1.48 at 288.15-308.15 K. The supersaturation (S) of MgCO3 center dot 3H(2)O was exactly calculated by aqueous (H+ ion) model through OLI platform. The conductivity method was applied in this experiment to determine the induction period of MgCO3 center dot 3H(2)O. The effects of temperature, supersaturation, and presence of additive (NaCl) on the induction period of MgCO3 center dot 3H(2)O were studied experimentally. As expected from theory, it was found that the induction period decreases when either temperature or supersaturation increases. The induction period was prolonged by adding NaCl in solutions at a constant supersaturation. From the dependence of the induction period on temperature and supersaturation, it was possible to distinguish between the homogeneous and heterogeneous nucleation mechanisms. At last, the activation energy (E-act) for MgCO3 center dot 3H(2)O crystallization and the interfacial tension between MgCO3 center dot 3H(2)O and aqueous solutions of homogeneous (gamma(S,hom)) and heterogeneous (gamma(S.het)) nucleation were calculated from measurements of the induction period for the MgCO3 center dot 3H(2)O nucleation with and without the addition of NaCl. (C) 2010 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Crystallography ; Materials Science, Multidisciplinary ; Physics, Applied |
| 研究领域[WOS] | Crystallography ; Materials Science ; Physics |
| 关键词[WOS] | CALCIUM-SULFATE DIHYDRATE ; THERMODYNAMIC PROPERTIES ; TRANSPORT-PROPERTIES ; STRONG ELECTROLYTES ; INDUCTION PERIODS ; AQUEOUS-SOLUTIONS ; HIGH-PRESSURES ; PRECIPITATION ; TEMPERATURES ; SOLUBILITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000277530200017 |
| 公开日期 | 2013-11-19 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6168]  |
| 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 | Cheng, Wenting,Li, Zhibao. Nucleation kinetics of nesquehonite (MgCO3 center dot 3H(2)O) in the MgCl2-Na2CO3 system[J]. JOURNAL OF CRYSTAL GROWTH,2010,312(9):1563-1571. |
| APA | Cheng, Wenting,&Li, Zhibao.(2010).Nucleation kinetics of nesquehonite (MgCO3 center dot 3H(2)O) in the MgCl2-Na2CO3 system.JOURNAL OF CRYSTAL GROWTH,312(9),1563-1571. |
| MLA | Cheng, Wenting,et al."Nucleation kinetics of nesquehonite (MgCO3 center dot 3H(2)O) in the MgCl2-Na2CO3 system".JOURNAL OF CRYSTAL GROWTH 312.9(2010):1563-1571. |
入库方式： OAI收割
来源：过程工程研究所
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