Theoretical insights into chiral PMAADs coordinated with Am(III)/Eu(III) and separation selectivity enhanced by chiral-at Am(III)/Eu(III) complexes

2021 ◽  
Author(s):  
Yang Xiao ◽  
Chang-Ming Nie ◽  
Xi-Lin Xiao ◽  
Li-Fu Liao ◽  
Rong Yang ◽  
...  
Keyword(s):  
Separation Selectivity

Non-additive separation selectivity enhancement in poly(4-methyl-2-pentyne) in relation to C1-C4-alkanes

2019 ◽  
Vol 212 ◽  
pp. 877-886 ◽  
Author(s):  
V. Zhmakin ◽  
M. Shalygin ◽  
V. Khotimskiy ◽  
S. Matson ◽  
V. Teplyakov
Keyword(s):  
Separation Selectivity

Preparation of Silicalite-1 Membranes on α-Al2O3 Tubes and its Concentration Performance of Low Ethanol/water Mixtures

2012 ◽  
Vol 608-609 ◽  
pp. 1337-1341
Author(s):  
Hong Liang Chen ◽  
Ji Song Yang ◽  
Yan Wang ◽  
Hui Ying Li ◽  
Xin Xin Li ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Solution Concentration ◽  
High Concentration ◽  
Separation Selectivity ◽  
Naoh Solution

Silicalite-1 membranes were successfully synthesized on α-Al2O3 tubes by in-situ hydrothermal synthesis after filling the tubes with water and glycerol mixtures, and all the membranes show high concentration performance towards ethanol/water mixtures after pretreating tubes with different NaOH solution. The results show that the flux enhances with the enhancement of NaOH solution concentration, but the separation selectivity decreases with the enhancement of NaOH solution concentration. After pretreating the α-Al2O3 tubes with different NaOH solution, the weight of all the α-Al2O3 tube decreases, but the Si/Al ratio increases, which shows that suitable pretreatment of α-Al2O3 is useful for improving the hydrophobicity of silicalite-1 membranes.

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