中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
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://WOS:000340442000009
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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