Determination of the degree of adsorption and the heat of adsorption for 1-butylamine and ammonia on NaHY zeolites

1984 ◽  
Vol 49 (12) ◽  
pp. 2739-2743 ◽  
Author(s):  
Miloslav Křivánek ◽  
Pavel Jírů
Keyword(s):  
Lewis Acid ◽  
Adsorption Isotherms ◽  
Heat Of Adsorption ◽  
Brønsted And Lewis Acid

The degree and heat of adsorption of 1-butylamine and ammonia were measured on samples of NaHY zeolites activated at 400-600°C. The adsorption isotherms and calorimetric curves were compared for the two bases, and the amount of Bronsted and Lewis acid centres was determined from the calorimetric curves.

LINURON ADSORPTION AND THE DEGREE OF DECOMPOSITION OF PEATS AS MEASURED BY RUBBED FIBRE CONTENT AND PYROPHOSPHATE INDEX

1976 ◽  
Vol 56 (2) ◽  
pp. 105-109 ◽  
Author(s):  
H. MORITA
Keyword(s):  
Adsorption Isotherms ◽  
Fibre Content ◽  
Extraction Technique ◽  
Adsorption Coefficient ◽  
Column Extraction

Determination of the Freundlich adsorption isotherms for linuron with some peats showed that the adsorption coefficient, K, is closely related to the degree of decomposition as measured by the rubbed fibre content and the pyrophosphate index. The K values indicate that adsorption increases with decomposition. The analyses required for the determination of K were facilitated by the use of a column extraction technique.

On the nature of framework Brønsted and Lewis acid sites in ZSM-5

Zeolites ◽  
1997 ◽  
Vol 19 (4) ◽  
pp. 288-296 ◽  
Author(s):  
G.L. Woolery ◽  
G.H. Kuehl ◽  
H.C. Timken ◽  
A.W. Chester ◽  
J.C. Vartuli
Keyword(s):  
Lewis Acid ◽  
Acid Sites ◽  
Lewis Acid Sites ◽  
Brønsted And Lewis Acid

Determination of adsorption isotherms and solute activities from spreading pressure-surface charge data

1977 ◽  
Vol 62 (3) ◽  
pp. 454-460 ◽  
Author(s):  
Sherril D Christian ◽  
Glenn Dryhurst ◽  
Viktor Brabec ◽  
James G Baker
Keyword(s):  
Surface Charge ◽  
Adsorption Isotherms ◽  
Spreading Pressure ◽  
Pressure Surface
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