Deactivation and Compound Formation in Sulfuric-Acid Catalysts and Model Systems

1995 ◽  
Vol 155 (1) ◽  
pp. 32-42 ◽  
Author(s):  
K.M. Eriksen ◽  
D.A. Karydis ◽  
S. Boghosian ◽  
R. Fehrmann
Keyword(s):  
Sulfuric Acid ◽  
Model Systems ◽  
Acid Catalysts ◽  
Compound Formation

Rheology of resins for production of vanadium sulfuric acid catalysts

1993 ◽  
Vol 50 (3) ◽  
pp. 141-145
Author(s):  
O. G. Charikova ◽  
V. V. Kostyuchenko ◽  
Yu. M. Mosin ◽  
A. I. Mikhailichenko ◽  
S. V. Buzina
Keyword(s):  
Sulfuric Acid ◽  
Acid Catalysts

Surface Concentrations and Compound Formation in Aqueous Sulfuric Acid

1994 ◽  
Vol 47 (1) ◽  
pp. 91 ◽  
Author(s):  
LF Phillips
Keyword(s):  
Sulfuric Acid ◽  
Acid Solution ◽  
Equilibrium Constants ◽  
Free Water ◽  
Acid Strength ◽  
Water Vapour Pressure ◽  
Water Molecules ◽  
Compound Formation ◽  
Enthalpy Changes ◽  
Rate Of Reaction

The concentration of free water molecules at the surface of a strong sulfuric acid solution is found to be very low, mainly as a consequence of the formation of acid hydrates. Values of equilibrium constants and enthalpy changes for successive hydration reactions of H2SO4 have been calculated from the variation of water vapour pressure with acid strength and temperature. The results support the conclusion of Fried et al. that the rate of reaction of a molecule such as N2O5 with a sulfuric acid aerosol is controlled by the rate at which the molecule can penetrate into the bulk of the liquid.

Loss of activity by vanadium sulfuric acid catalysts under the action of arsenic(III) oxide vapor

2006 ◽  
Vol 79 (4) ◽  
pp. 619-623
Author(s):  
V. N. Krasil’nikov ◽  
A. P. Shtin ◽  
V. I. Malkiman
Keyword(s):  
Sulfuric Acid ◽  
Acid Catalysts ◽  
Oxide Vapor

Silica-Sulfuric Acid and Alumina-Sulfuric Acid – Versatile Supported Bronsted Acid Catalysts

2021 ◽  
Author(s):  
Amit Pramanik ◽  
Sanjay Bhar
Keyword(s):  
Sulfuric Acid ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Functionalized Silica ◽  
Bronsted Acid ◽  
Silica Sulfuric Acid ◽  
Brönsted Acid ◽  
Bronsted Acid Catalysts ◽  
Heterogeneous Solid

Abstract: The –SO3H functionalized silica and alumina have emerged as efficient and eco-compatible heterogeneous solid acid catalysts for the construction of various important molecular skeletons. The advantages of –SO3H functionalized...

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