Solubility of the System KOH-K2CrO4-K2CO3-Al2O3-H2O at 150 degrees C in the High Alkali Concentrated Region
文献类型:期刊论文
作者 | Du, Chunhua1,2; Zheng, Shili2; Zhang, Yi2 |
刊名 | JOURNAL OF CHEMICAL AND ENGINEERING DATA
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出版日期 | 2014-08-01 |
卷号 | 59期号:8页码:2423-2427 |
关键词 | PHASE-EQUILIBRIA |
ISSN号 | 0021-9568 |
其他题名 | J. Chem. Eng. Data |
中文摘要 | Phase equilibria of the system KOH-K2CrO4-K2CO3-Al2O3-H2O and its subsystems were investigated at 150 degrees C in the high alkali concentrated region. In the concentrated alkali region of the system and its subsystems KOH-K2CrO4-Al2O3-H2O and KOH-K2CO3-H2O, the equilibrium solid-phase K2CO3 center dot 1.5H(2)O was found. In the concentrated alkali region of the complex system, potassium aluminate and K2CO3 play an evident salting-out role to potassium chromate, respectively, and their combined operation lowers the solubility of K2CrO4. The solubilizing effect of K2CrO4 on Al2O3 in the system KOH-K2CrO4-Al2O3-H2O is similar to that of Na2CrO4 on Al2O3 in the system NaOH-Na2CrO4-Al2O3-H2O. These findings can provide a significant and precious database for the production of K2CrO4 and K2CO3 and the recovery of alumina from a concentrated alkali solution. |
英文摘要 | Phase equilibria of the system KOH-K2CrO4-K2CO3-Al2O3-H2O and its subsystems were investigated at 150 degrees C in the high alkali concentrated region. In the concentrated alkali region of the system and its subsystems KOH-K2CrO4-Al2O3-H2O and KOH-K2CO3-H2O, the equilibrium solid-phase K2CO3 center dot 1.5H(2)O was found. In the concentrated alkali region of the complex system, potassium aluminate and K2CO3 play an evident salting-out role to potassium chromate, respectively, and their combined operation lowers the solubility of K2CrO4. The solubilizing effect of K2CrO4 on Al2O3 in the system KOH-K2CrO4-Al2O3-H2O is similar to that of Na2CrO4 on Al2O3 in the system NaOH-Na2CrO4-Al2O3-H2O. These findings can provide a significant and precious database for the production of K2CrO4 and K2CO3 and the recovery of alumina from a concentrated alkali solution. |
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] | PHASE-EQUILIBRIA |
收录类别 | SCI |
原文出处 | |
语种 | 英语 |
WOS记录号 | WOS:000340442000009 |
公开日期 | 2014-09-30 |
版本 | 出版稿 |
源URL | [http://ir.ipe.ac.cn/handle/122111/11366] ![]() |
专题 | 过程工程研究所_研究所(批量导入) |
作者单位 | 1.Qingdao Agr Univ, Coll Chem & Pharm, Qingdao 266109, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
推荐引用方式 GB/T 7714 | Du, Chunhua,Zheng, Shili,Zhang, Yi. Solubility of the System KOH-K2CrO4-K2CO3-Al2O3-H2O at 150 degrees C in the High Alkali Concentrated Region[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2014,59(8):2423-2427. |
APA | Du, Chunhua,Zheng, Shili,&Zhang, Yi.(2014).Solubility of the System KOH-K2CrO4-K2CO3-Al2O3-H2O at 150 degrees C in the High Alkali Concentrated Region.JOURNAL OF CHEMICAL AND ENGINEERING DATA,59(8),2423-2427. |
MLA | Du, Chunhua,et al."Solubility of the System KOH-K2CrO4-K2CO3-Al2O3-H2O at 150 degrees C in the High Alkali Concentrated Region".JOURNAL OF CHEMICAL AND ENGINEERING DATA 59.8(2014):2423-2427. |
入库方式: OAI收割
来源:过程工程研究所
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