Kinetics of the reaction between chloroform and 2,5-dimethylpyrrole in the vapour phase

2007 ◽  
Vol 35 (3) ◽  
pp. 127-131
Author(s):  
Reginald E. Busby ◽  
Laura E. Dorgan ◽  
Kenneth I. Lazaar ◽  
John Parrick ◽  
S. Mumtaz H. Rizvi ◽  
...  
Keyword(s):  
Vapour Phase ◽  
Kinetics Of

The kinetics of vapour-phase ammoxidation of 2,6-dichlorotoluene over VPO catalyst

2006 ◽  
Vol 240 (1) ◽  
pp. 8-17 ◽  
Author(s):  
N DROPKA ◽  
V KALEVARU ◽  
A MARTIN ◽  
D LINKE ◽  
B LUCKE
Keyword(s):  
Vapour Phase ◽  
Vpo Catalyst ◽  
Kinetics Of

Sorption and Transport of Species in Silicalite Study of Binary Systems Containing Iodine

1998 ◽  
Vol 63 (3) ◽  
pp. 321-337 ◽  
Author(s):  
Vladimír Masařík ◽  
Pavel Novák ◽  
Arlette Zikánová ◽  
Jan Kornatowski ◽  
Jaroslav Maixner ◽  
...  
Keyword(s):  
Binary Systems ◽  
Crystal Morphology ◽  
Crystal Surface ◽  
Vapour Phase ◽  
Sorption Kinetics ◽  
Diffusion Experiment ◽  
Initial Stage ◽  
Pore Mouth ◽  
Kinetics Of ◽  
Counter Diffusion

Sorption of iodine from both the vapour phase and iodine solutions in organic solvents on large Silicalite-1 crystals was investigated. The single component sorption of iodine and sorption from binary mixtures under co-diffusion conditions led to a uniform colouring of the crystals. Under counter-diffusion conditions with crystals saturated initially with vapour of a selected solvent, the sorption kinetics of iodine was 2 or 3 orders of magnitude slower as compared with the corresponding co-diffusion experiment. Colouring of crystals was always, at least in its initial stage, non-uniform with visualized pyramids at crystal basal planes. This finding together with the nature of outer and inner crystal morphology suggests that our Silicalite-1 crystals are 90°-intergrowths which have only pore mouth openings of sinusoidal channels in the crystal surface. The process of crystal colouring under counter-diffusion conditions seems to proceed via diffusion along the boundaries of crystal sections.

Sign in / Sign up

Export Citation Format

Share Document