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

2018 ◽  
Vol 104 ◽  
pp. 257-262
Author(s):  
Tan Guo ◽  
Shan Yun ◽  
Lei He ◽  
Quan Li ◽  
Zhijian Wu
2013 ◽  
Vol 652-654 ◽  
pp. 2524-2528 ◽  
Author(s):  
Xian Jiang Huang ◽  
Lian Ying An ◽  
Xian Yin Zhao ◽  
Xiao Qing Chen

A spherical composite adsorbent AWP-CaALG was prepared by the calcium alginate(CaALG) and ammonium tungstophosphate(AWP). The composite adsorbent was characterized by XRD, FT-IR and TG-DTG-DTA, it proves that the crystal structure of AWP isn’t destroyed and the adsorption ability of the composite adsorbent can be retained up to 120°C. Effects of adsorbent dosage, adsorption time, pH, temperature, concentration of Rb and K were investigated. The results show that the adsorption capacity of composite adsorbent to rubidium is 20.64mg/g.The adsorption equilibrium is gained after 24h. When the concentration ratio of K to Rb is 16, the adsorption rate of Rb can still be up to 94.1% and the Rb/K separation coefficient is 86.


2017 ◽  
Vol 2 (25) ◽  
pp. 7741-7750 ◽  
Author(s):  
Amin Bao ◽  
Hong Zheng ◽  
Zeyu Liu ◽  
Dongfang Huang ◽  
Shuya Wang ◽  
...  

2015 ◽  
Vol 31 (4) ◽  
pp. 621-626 ◽  
Author(s):  
Daolin Gao ◽  
Xiaoping Yu ◽  
Yafei Guo ◽  
Shiqiang Wang ◽  
Mingming Liu ◽  
...  

2016 ◽  
Vol 67 ◽  
pp. 06090
Author(s):  
Yaqiang Yang ◽  
Dandan Li ◽  
Guangqin Wan ◽  
Feifei Lv ◽  
Danfeng Li ◽  
...  
Keyword(s):  

2014 ◽  
Vol 43 (23) ◽  
pp. 8933-8939 ◽  
Author(s):  
Ramesh Chitrakar ◽  
Yoji Makita ◽  
Kenta Ooi ◽  
Akinari Sonoda

The high lithium uptake of H2TiO3 from brine is due to its lithium ion-sieve property. Exchange sites are too narrow for Na, K, Mg and Ca to enter the interlayer space due to steric effects.


ChemSusChem ◽  
2018 ◽  
Vol 11 (24) ◽  
pp. 4219-4225 ◽  
Author(s):  
Jiayin Hu ◽  
Shangqing Chen ◽  
Yafei Guo ◽  
Long Li ◽  
Tianlong Deng

2012 ◽  
Vol 549 ◽  
pp. 437-440 ◽  
Author(s):  
Shi Qiang Wang ◽  
Ya Fei Guo ◽  
Tian Long Deng

Solubilities of the reciprocal quaternary system (Li+, Mg2+//Cl-, SO42-–H2O) at 273.15K were calculated using Pitzer and its extended HW model. The values of the Pitzer single-salt parameters β(0), β(1), β(2)and Cφfor LiCl, MgCl2, Li2SO4, and MgSO4, the mixed ion-interaction parameters θLi,Mg, θCl,SO4, ψLi,Mg,Cl, ψLi,Mg,SO4, ψLi,Cl,SO4and ψMg,Cl,SO4, and the Debye–Hückel parameter Aφin the system at 273.15K were derived either temperature-dependent equation or through fitting solubility data of the ternary system by multiple linear regression method. Based on the Jänecke indexes, the phase diagram was plotted. This study affords the necessary parameters for solubility predictions of complicated systems and establishes a theoretical basis for the separation of these valuable minerals from salt lake brine.


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