Reversibility of solvent-induced surface modification of alumina adsorbents

Evaluation of the Thermodynamic Parameters for the Adsorption of Some Hydrocarbons on Chemically Treated-Bentonites by Inverse Gas Chromatography

“…The studies on the heats of adsorption of the C 6 -hydrocarbons on the investigated adsorbents in the literature generally refer to the natural bentonite and the bentonite treated with HNO 3 . Some of the isosteric enthalpy data available are as follows: (1) AL-n-hexane 37.10 kJ mol −1 [18,19], 30.00 kJ mol −1 (Todorovic et al, 1988), 46.02 kJ mol −1 (Aşkı n anḋ Inel, 2001), 42.30 kJ mol −1 (Baumgarten et al, 1977), AL-cyclohexane 31.7 kJ mol −1 (Baumgarten et al, 1977;Gönenç et al, 1993), 30.00 kJ mol −1 (Todorovic et al, 1988), AL-benzene 51,78 kJ mol −1 (Choudhary and Menon, 1976), 39.00 kJ mol −1 (Todorovic et al, 1988), 46.50 kJ mol −1 (Baumgarten et al, 1977). (2) 3A-hexane 33.98 kJ mol −1 (Tümsek andİnel, 2003).…”

Evaluation of the Thermodynamic Parameters for the Adsorption of Some Hydrocarbons on Chemically Treated-Bentonites by Inverse Gas Chromatography

“…The studies on the heats of adsorption of the C 6 -hydrocarbons on the investigated adsorbents in the literature generally refer to the natural bentonite and the bentonite treated with HNO 3 . Some of the isosteric enthalpy data available are as follows: (1) AL-n-hexane 37.10 kJ mol −1 [18,19], 30.00 kJ mol −1 (Todorovic et al, 1988), 46.02 kJ mol −1 (Aşkı n anḋ Inel, 2001), 42.30 kJ mol −1 (Baumgarten et al, 1977), AL-cyclohexane 31.7 kJ mol −1 (Baumgarten et al, 1977;Gönenç et al, 1993), 30.00 kJ mol −1 (Todorovic et al, 1988), AL-benzene 51,78 kJ mol −1 (Choudhary and Menon, 1976), 39.00 kJ mol −1 (Todorovic et al, 1988), 46.50 kJ mol −1 (Baumgarten et al, 1977). (2) 3A-hexane 33.98 kJ mol −1 (Tümsek andİnel, 2003).…”

Analysis of the surface heterogeneity of different samples of aluminum oxide ceramic powders

“…Many alcohols dehydrate on the surface of alumina. Acetone chemisorbs on its surface (14). The most important reason for using alumina compared to many other high-performance ceramic materials, however, is that its surface is oxidized.…”

Evaluation of the Thermodynamic Parameters for the Adsorption of Some Hydrocarbons on Chemically Treated-Bentonites by Inverse Gas Chromatography

“…The studies on the heats of adsorption of the C 6 -hydrocarbons on the investigated adsorbents in the literature generally refer to the natural bentonite and the bentonite treated with HNO 3 . Some of the isosteric enthalpy data available are as follows: (1) AL-n-hexane 37.10 kJ mol −1 [18,19], 30.00 kJ mol −1 (Todorovic et al, 1988), 46.02 kJ mol −1 (Aşkı n anḋ Inel, 2001), 42.30 kJ mol −1 (Baumgarten et al, 1977), AL-cyclohexane 31.7 kJ mol −1 (Baumgarten et al, 1977;Gönenç et al, 1993), 30.00 kJ mol −1 (Todorovic et al, 1988), AL-benzene 51,78 kJ mol −1 (Choudhary and Menon, 1976), 39.00 kJ mol −1 (Todorovic et al, 1988), 46.50 kJ mol −1 (Baumgarten et al, 1977). (2) 3A-hexane 33.98 kJ mol −1 (Tümsek andİnel, 2003).…”

Analysis of the surface heterogeneity of different samples of aluminum oxide ceramic powders

“…Many alcohols dehydrate on the surface of alumina. Acetone chemisorbs on its surface (14). The most important reason for using alumina compared to many other high-performance ceramic materials, however, is that its surface is oxidized.…”

Evaluation of the Thermodynamic Parameters for the Adsorption of Some Hydrocarbons on Chemically Treated-Bentonites by Inverse Gas Chromatography

“…The studies on the heats of adsorption of the C 6 -hydrocarbons on the investigated adsorbents in the literature generally refer to the natural bentonite and the bentonite treated with HNO 3 . Some of the isosteric enthalpy data available are as follows: (1) AL-n-hexane 37.10 kJ mol −1 [18,19], 30.00 kJ mol −1 (Todorovic et al, 1988), 46.02 kJ mol −1 (Aşkı n anḋ Inel, 2001), 42.30 kJ mol −1 (Baumgarten et al, 1977), AL-cyclohexane 31.7 kJ mol −1 (Baumgarten et al, 1977;Gönenç et al, 1993), 30.00 kJ mol −1 (Todorovic et al, 1988), AL-benzene 51,78 kJ mol −1 (Choudhary and Menon, 1976), 39.00 kJ mol −1 (Todorovic et al, 1988), 46.50 kJ mol −1 (Baumgarten et al, 1977). (2) 3A-hexane 33.98 kJ mol −1 (Tümsek andİnel, 2003).…”

Analysis of the surface heterogeneity of different samples of aluminum oxide ceramic powders

“…Many alcohols dehydrate on the surface of alumina. Acetone chemisorbs on its surface (14). The most important reason for using alumina compared to many other high-performance ceramic materials, however, is that its surface is oxidized.…”