Determination and Modeling of Solubility for CaSO4 center dot 2H(2)O-NH4+-Cl--SO42--NO3--H2O System
文献类型：期刊论文
| 作者 | Tian, Ping; Ning, Pengge; Cao, Hongbin; Li, Zhibao |
| 刊名 | JOURNAL OF CHEMICAL AND ENGINEERING DATA
 |
| 出版日期 | 2012-12-01 |
| 卷号 | 57期号:12页码:3664-3671 |
| 关键词 | CALCIUM-SULFATE SOLUBILITY WASTE-WATER STREAMS HCL+CACL2 SOLUTIONS AMMONIUM-SULFATE CASO4 PHASES DEGREES-C 353 K REMOVAL GYPSUM NACL |
| ISSN号 | 0021-9568 |
| 通讯作者 | Cao, HB |
| 英文摘要 | The solubility of gypsum (CaSO4 center dot 2H(2)O) in ammonium solutions plays a significant role to prevent gypsum scaling on the heater and tower in the treatment of ammonium-N wastewater bearing sulfate ions by the steam stripping process. In this work solubilities of calcium sulfate dihydrate in NH4Cl, NH4NO3, and mixed NH4Cl and (NH4)(2)SO4 solutions up to 343.15 K were measured using the classic isothermal dissolution method. The investigated concentration (at ambient temperature) is up to 1.50 mol.dm(-3) for both NH4Cl and NH4NO3. The solubility of CaSO4 center dot 2H(2)O was found to increase sharply with either NH4Cl or NH4NO3 concentration, whereas the temperature has a limited effect. The XRD analysis of equilibrated solids for these systems shows that CaSO4 center dot 2H(2)O is stable in all cases over the temperature range (298.15 to 343.15) K. The electrolyte nonrandom two-liquid (the electrolyte NRTL) model embedded in AspenPlus was applied to model the solubility of CaSO4 center dot 2H(2)O in the above systems. The newly obtained model parameters were used to well estimate the solubility of CaSO4 center dot 2H(2)O in all cases with a relative deviation of 1.52 %. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Multidisciplinary ; Engineering, Chemical |
| 研究领域[WOS] | Chemistry ; Engineering |
| 关键词[WOS] | CALCIUM-SULFATE SOLUBILITY ; WASTE-WATER STREAMS ; HCL+CACL2 SOLUTIONS ; AMMONIUM-SULFATE ; CASO4 PHASES ; DEGREES-C ; 353 K ; REMOVAL ; GYPSUM ; NACL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000312175600050 |
| 公开日期 | 2013-10-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/2941]  |
| 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, Res Ctr Proc Pollut Control, Inst Proc Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Ping,Ning, Pengge,Cao, Hongbin,et al. Determination and Modeling of Solubility for CaSO4 center dot 2H(2)O-NH4+-Cl--SO42--NO3--H2O System[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2012,57(12):3664-3671. |
| APA | Tian, Ping,Ning, Pengge,Cao, Hongbin,&Li, Zhibao.(2012).Determination and Modeling of Solubility for CaSO4 center dot 2H(2)O-NH4+-Cl--SO42--NO3--H2O System.JOURNAL OF CHEMICAL AND ENGINEERING DATA,57(12),3664-3671. |
| MLA | Tian, Ping,et al."Determination and Modeling of Solubility for CaSO4 center dot 2H(2)O-NH4+-Cl--SO42--NO3--H2O System".JOURNAL OF CHEMICAL AND ENGINEERING DATA 57.12(2012):3664-3671. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。