Comparative study of ion-exchange properties in natural clinoptilolites of the USSR and Bulgaria with the aim of purifying liquid sewage from atomic power stations

1989 ◽  
Vol 130 (2) ◽  
pp. 293-298 ◽  
Author(s):  
M. M. Senyavin ◽  
V. A. Nikashina ◽  
V. A. Novikova ◽  
G. D. Gradev ◽  
I. G. Stefanova ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Comparative Study ◽  
Power Stations ◽  
Exchange Properties

Comparative study of Ag–Na thermal and field-assisted ion exchange on Er-doped phosphate glass

2001 ◽  
Vol 17 (3) ◽  
pp. 425-435 ◽  
Author(s):  
G Sorbello ◽  
S Taccheo ◽  
M Marano ◽  
M Marangoni ◽  
R Osellame ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Comparative Study ◽  
Phosphate Glass ◽  
Er Doped

Homologous Series of 2D Chalcogenides Cs–Ag–Bi–Q (Q = S, Se) with Ion-Exchange Properties

2017 ◽  
Vol 139 (36) ◽  
pp. 12601-12609 ◽  
Author(s):  
Jing Zhao ◽  
Saiful M. Islam ◽  
Shiqiang Hao ◽  
Gangjian Tan ◽  
Constantinos C. Stoumpos ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Homologous Series ◽  
Exchange Properties

Some ion exchange properties of amorphous titanium (IV) phosphate

1993 ◽  
Vol 110 (1-3) ◽  
pp. 95-101 ◽  
Author(s):  
Severino F. de Oliveira ◽  
Claudio Airoldi
Keyword(s):  
Ion Exchange ◽  
Exchange Properties

Production of Porous Materials by Dealumination of Alumina-Rich Zeolites

1994 ◽  
Vol 371 ◽  
Author(s):  
R. Le Van Mao ◽  
G. Denes ◽  
N.T.C. Vo ◽  
J.A. Lavigne ◽  
S.T. Le
Keyword(s):  
Comparative Study ◽  
Pore Size Distribution ◽  
Mesoporous Materials ◽  
Acid Leaching ◽  
Textural Properties ◽  
Zeolite A ◽  
New Materials ◽  
Ammonium Hexafluorosilicate ◽  
Void Volumes ◽  
Exchange Properties

AbstractA comparative study of chemical and textural properties for materials obtained by three different methods of dealumination of alumina-rich parent Ca-A zeolite showed that the method using ammonium hexafluorosilicate (AFS) resulted in the most interesting developments of mesoporous materials, with much higher void volumes and cation exchange properties than obtained by acid leaching or hydrothermal treatment. AFS treatment on both the Na and Ca forms of zeolite A resulted in materials with 12 nm sized mesopores, whereas smaller mesopores of about 4 nm were obtained when using the higher Si/Al ratio parent zeolite Na-X. Pore size distribution profiles obtained for these new materials are fairly narrow, indicating homogeneous mesopore sized solids.

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