Application of Moment Analysis to Mass Transfer Kinetics of Reversed-Phase Liquid Chromatography: 2. A New Understanding of the External Mass Transfer Coefficient

2010 ◽  
Vol 48 (9) ◽  
pp. 742-749 ◽  
Author(s):  
H. Gao ◽  
X. Wu ◽  
B. Lin
Keyword(s):  
Mass Transfer ◽  
Liquid Chromatography ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Reversed Phase ◽  
External Mass Transfer ◽  
Reversed Phase Liquid Chromatography ◽  
Mass Transfer Kinetics ◽  
Phase Liquid ◽  
Kinetics Of

Rate constants of mass transfer kinetics in reversed phase liquid chromatography

AIChE Journal ◽  
2005 ◽  
Vol 51 (12) ◽  
pp. 3122-3133 ◽  
Author(s):  
Lan Hong ◽  
Fabrice Gritti ◽  
Georges Gulochon ◽  
Krzysztof Kaczmarski
Keyword(s):  
Mass Transfer ◽  
Liquid Chromatography ◽  
Rate Constants ◽  
Reversed Phase ◽  
Reversed Phase Liquid Chromatography ◽  
Mass Transfer Kinetics ◽  
Phase Liquid

Kinetics of the reaction between hexamethylenediisocyanate and 1-pentanol

1983 ◽  
Vol 48 (11) ◽  
pp. 3279-3286
Author(s):  
Slavko Hudeček ◽  
Miloslav Bohdanecký ◽  
Ivana Hudečková ◽  
Pavel Špaček ◽  
Pavel Čefelín
Keyword(s):  
Liquid Chromatography ◽  
Rate Constants ◽  
Reversed Phase ◽  
Order Reaction ◽  
Second Order ◽  
Second Order Reaction ◽  
Reversed Phase Liquid Chromatography ◽  
Consecutive Reactions ◽  
Phase Liquid ◽  
Kinetics Of

The reaction between hexamethylenediisocyanate and 1-pentanol in toluene was studied by means of reversed-phase liquid chromatography. By employing this method, it was possible to determine all components of the reaction mixture including both products, i.e. N-(6-isocyanate hexyl)pentylcarbamate and N,N'-bis(pentyloxycarbonyl)hexamethylenediamine. Relations for the calculation of kinetic constants were derived assuming a competitive consecutive second-order reaction. It was demonstrated that the reaction involved in this case is indeed a second-order reaction, and the rate constants of the first and second consecutive reactions were determined.

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