Phase diagram analysis of the carbonation process of sodium chromate and ammonia solution
文献类型：期刊论文
| 作者 | Liu, CJ; Zhang, Y |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 2004-11-01 |
| 卷号 | 20期号:11页码:1335-1338 |
| 关键词 | chromates clean process solubility phase diagram |
| ISSN号 | 1000-6818 |
| 其他题名 | Acta Phys.-Chim. Sin. |
| 中文摘要 | The solubility and phase diagram of Na+, NH4+ / / CrO42-, HCO3--H2O system are determined in this paper. According to the solubility and phase diagram, the solid phases in carbonation process of sodium chromate in ammonia solution are discussed. The results show that a crystalline zone of NaNH4CrO4 (.) 2H(2)O exists, NaHCO3, NaNH4CrO4 (.) 2H(2)O and (NH4)(2)CrO4 crystallize out in turn during carbonation process as the concentration of sodium chromate in ammonia water exceeds the concentration corresponding to P-2(P-2') in phase diagram. Proper concentration is 0.8633 similar to 1.1377 g/g H2O for sodium chromate, 0.0611 similar to 0.0986 g/g H2O for ammonia, lower than the concentration corresponding to P-2(P-2') plot. The NaHCO3 and NaNH4CrO4 (.) 2H(2)O crystals can be separated by hydrocyclone. |
| 英文摘要 | The solubility and phase diagram of Na+, NH4+ / / CrO42-, HCO3--H2O system are determined in this paper. According to the solubility and phase diagram, the solid phases in carbonation process of sodium chromate in ammonia solution are discussed. The results show that a crystalline zone of NaNH4CrO4 (.) 2H(2)O exists, NaHCO3, NaNH4CrO4 (.) 2H(2)O and (NH4)(2)CrO4 crystallize out in turn during carbonation process as the concentration of sodium chromate in ammonia water exceeds the concentration corresponding to P-2(P-2') in phase diagram. Proper concentration is 0.8633 similar to 1.1377 g/g H2O for sodium chromate, 0.0611 similar to 0.0986 g/g H2O for ammonia, lower than the concentration corresponding to P-2(P-2') plot. The NaHCO3 and NaNH4CrO4 (.) 2H(2)O crystals can be separated by hydrocyclone. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000225381400010 |
| 公开日期 | 2013-11-05 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4984]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China 2.Univ Petr, China Natl Petr Corp, Key Lab Catalysis, Beijing 102249, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, CJ,Zhang, Y. Phase diagram analysis of the carbonation process of sodium chromate and ammonia solution[J]. ACTA PHYSICO-CHIMICA SINICA,2004,20(11):1335-1338. |
| APA | Liu, CJ,&Zhang, Y.(2004).Phase diagram analysis of the carbonation process of sodium chromate and ammonia solution.ACTA PHYSICO-CHIMICA SINICA,20(11),1335-1338. |
| MLA | Liu, CJ,et al."Phase diagram analysis of the carbonation process of sodium chromate and ammonia solution".ACTA PHYSICO-CHIMICA SINICA 20.11(2004):1335-1338. |
入库方式： OAI收割
来源：过程工程研究所
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