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SM ISO690:2012 RUSU, Vasile. Surface properties of bentonite largutza pillared with aluminum oligomers. In: Ecological and environmental chemistry : - 2017, Ed. 6, 2-3 martie 2017, Chișinău. Chisinau, Republic of Moldova: Academy of Sciences of Moldova, 2017, Ediția 6, p. 171. |
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Ecological and environmental chemistry Ediția 6, 2017 |
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Conferința "Ecological and environmental chemistry 2017" 6, Chișinău, Moldova, 2-3 martie 2017 | ||||||
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Pag. 171-171 | ||||||
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The x-ray analysis and sorptional-structural characteristics obtained from nitrogen adsorption isotherms for bentonite Largutza (R. Moldova) pillared with aluminum oligomers were elucidated. Specific surface area (after BET) of pillared adsorbents increases by 1.5-2 times as compared to the initial bentonite. The synthesized adsorbents on the basis of bentonite Largutza possess high thermal stability after calcination at 350-450 °C. The kinetics of the conversion of oleic acid to esterification with ethylic alcohol is influenced by the modification of the surface properties of the adsorbents - acidity, sorption-structural characteristics and thermal stability. On the whole, pillared adsorbents obtained on the basis of bentonite Largutza possess real prospects for obtaining bio-fuel from vegetable oils. |
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