Separation and extraction of cesium from salt lake brine by the calcium alginate-ammonium tungstophosphate composite adsorbent

doi:10.5004/dwt.2018.21912

CORC > 青海盐湖研究所 > 中国科学院青海盐湖研究所 > 盐湖资源与化学实验室

	Separation and extraction of cesium from salt lake brine by the calcium alginate-ammonium tungstophosphate composite adsorbent
	Guo, Tan; Yun, Shan; He, Lei; Li, Quan; Wu, Zhijian
刊名	DESALINATION AND WATER TREATMENT
	2018-02
卷号	104 页码:257-262
ISSN号	1944-3994
DOI	10.5004/dwt.2018.21912
英文摘要	A composite adsorbent calcium alginate-ammonium tungstophosphate (Ca(ALG)(2)-AWP) was synthesized by a sol-gel method using ammonium tungstophosphate ((NH4)(3)PW12O40) as the adsorption active component and calcium alginate (Ca(ALG)(2)) as the matrix. Adsorption and desorption behaviors of Li+, Na+, K+, Rb+, Cs+ and Mg2- were investigated at 25 degrees C comprehensively. Under competitive adsorption conditions, the separation factor was in the order of beta(Cs/Mg)>> beta(Rb)(/Mg) > beta(Li/Mg) similar to beta(Na/Mg) similar to beta(K/Mg) explained by considering the hydration radius of metal ions, electrostatic traction and Gibbs free energy. In the column tests, Cs+ exhibited the lowest breakthrough ratio and highest selectivity. High quality of CsCl with the content of 82.44 wt% was obtained from the salt lake brine after desorption by the mixed solution of 3 mol L-1 NH4Cl and 1 mol L-1 HCl. Therefore, the method of column adsorption-desorption by using Ca(ALG)(2)-AWP was promising to separate and extract Cs+ from the salt lake brine with high selectivity and excellent regeneration.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34467]
专题	青海盐湖研究所_盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Guo, Tan,Yun, Shan,He, Lei,et al. Separation and extraction of cesium from salt lake brine by the calcium alginate-ammonium tungstophosphate composite adsorbent[J]. DESALINATION AND WATER TREATMENT,2018,104:257-262.
APA	Guo, Tan,Yun, Shan,He, Lei,Li, Quan,&Wu, Zhijian.(2018).Separation and extraction of cesium from salt lake brine by the calcium alginate-ammonium tungstophosphate composite adsorbent.DESALINATION AND WATER TREATMENT,104,257-262.
MLA	Guo, Tan,et al."Separation and extraction of cesium from salt lake brine by the calcium alginate-ammonium tungstophosphate composite adsorbent".DESALINATION AND WATER TREATMENT 104(2018):257-262.