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Investigation of the Surface Acidity of a Bentonite Modified by Acid Activation and Thermal Treatment
Acid activation bentonite n-butylamine pore volume surface acidity surface area thermal treatment
2010/4/21
The adsorption of n-butylamine from its solution in cyclohexane on acid-activated and thermally treated Kütahya/Turkey bentonite (KB) samples was followed using a UV-VIS spectrophotometric method. The...
The Effect of Acid Activation on Some Physicochemical Properties of a Bentonite
Acid Activation Bentonite Cation Exchange Capacity Pore Volume Surface Area
2010/4/22
A white calcium bentonite (CaB) from the K\"{u}tahya region/Turkey was activated by heating it for 6 hours at 97°C in H2SO4 solution. The mass percentage of H2SO4 in the bentonite-acid mixture was var...
Effect of Acid Activation on the De-Tert-Butylation Activity of Some Jordanian Clays
Bentonite Butylphenol Catalyst Clay Debutylation Kaolin Kaolinite Montmorillonite
2011/12/7
Abstract: Jordanian natural kaolin and bentonite show good catalytic activity towards debutylating 2-tert-butylphenol, and varying debutylation vs. isomerization selectivity after acid activation. The...
Acid Activation of a Ferrous Saponite (Griffithite): Physico-Chemical Characterization and Surface Area of the Products Obtained
Acid activation Ferrous saponite Free silica Surface area
2011/12/29
A ferrous saponite (griffithite) from Griffith Park (California, USA) was treated with solutions of HCl (0.62, 1.25 and 2.5% by weight) at 25°C for 2, 6, 24 and 48 hours. The resulting solids were cha...
Mechanism of Acid Activation of Magnesic Palygorskite
Acid leaching Palygorskite Porosity Silica Surface area
2012/1/5
This paper compares the texture of palygorskite after acid leaching with that of the product after extraction silica is removed. These effects were evaluated on the basis of nitrogen adsorption- desor...