Role of some transition metal cations on the kinetics of thermal dehydration of synthetic zeolites

2008 ◽  
Vol 34 (3) ◽  
pp. 485-490 ◽  
Author(s):  
S. Maitra ◽  
S. Das ◽  
R. Ray ◽  
N.K. Mitra
Keyword(s):  
Transition Metal ◽  
Metal Cations ◽  
Thermal Dehydration ◽  
Transition Metal Cations ◽  
Synthetic Zeolites ◽  
Kinetics Of

Sorption and transformation of phenols on clay surfaces: effect of exchangeable cations

Clay Minerals ◽  
1983 ◽  
Vol 18 (3) ◽  
pp. 253-265 ◽  
Author(s):  
P. J. Isaacson ◽  
B. L. Sawhney
Keyword(s):  
Aqueous Solution ◽  
Ir Spectroscopy ◽  
Transition Metal ◽  
Metal Cations ◽  
Transformation Products ◽  
Exchangeable Cations ◽  
Radical Reactions ◽  
Transition Metal Cations ◽  
Alkyl Substitution

AbstractThe sorption and transformation of phenol, 2-methylphenol, 3-methylphenol, 2,6-dimethylphenol, 3,5-dimethylphenol, and 2,4,6-trimethylphenol, by homoionic Na-, H-, Ca-, Cu-, Al-, and Fe(III)-montmorillonite from both vapour and aqueous phases were examined by IR spectroscopy. All the phenols were sorbed by the clays but were modified to different degrees depending on the exchangeable cations and on the amount and type of alkyl substitution of the phenols. Sorption of 2,6-dimethylphenol from aqueous solution was irreversible, and the extent of sorption followed the order Fe- > Al- > Cu- > Ca-clay. Both transition and non-transition metal cations were effective in transforming the phenol sorbates and heating the clay/phenol complexes further enhanced transformation. The results are discussed in terms of the nature of the transformation products and the likely role of radical reactions in their formation.

The role of transition metal cations in dyeing of fabrics made from synthetic fibres

2011 ◽  
Vol 42 (4) ◽  
pp. 259-260
Author(s):  
N. N. Pochekhovskaya ◽  
A. E. Tret’yakova ◽  
V. V. Safonov
Keyword(s):  
Transition Metal ◽  
Metal Cations ◽  
Transition Metal Cations

Kinetics of First-Row Transition Metal Cations (V+, Fe+, Co+) with OCS at Thermal Energies

2018 ◽  
Vol 122 (17) ◽  
pp. 4246-4251 ◽  
Author(s):  
Brendan C. Sweeny ◽  
Shaun G. Ard ◽  
Nicholas S. Shuman ◽  
Albert A. Viggiano
Keyword(s):  
Transition Metal ◽  
Metal Cations ◽  
Transition Metal Cations ◽  
Kinetics Of
Sign in / Sign up

Export Citation Format

Share Document