Effect of nitric acid modification of montmorillonite clay on synthesis of solketal from glycerol and acetone

Maria N. Timofeeva; Valentina N. Panchenko; Victoria V. Krupskaya; Antonio Gil; Miguel A. Vicente

doi:10.1016/j.catcom.2016.11.020

Effect of nitric acid modification of montmorillonite clay on synthesis of solketal from glycerol and acetone

Maria N. Timofeeva, Valentina N. Panchenko, Victoria V. Krupskaya, Antonio Gil, Miguel A. Vicente

Лаборатория новых функциональных органических материалов ФЕН

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

33 Цитирования (Scopus)

Аннотация

The effect of acid modification of a natural montmorillonite clay (MM) by HNO₃ on the catalytic properties of MM from Dash-Salakhlinsk (Kazakhstan) has been investigated in the synthesis of solketal from glycerol and acetone in solvent free and acetonitrile media. HNO₃ concentration allowed to control the chemical composition, the surface acidity, the porous structure of the acid-activated MMs and their catalytic performance. The main reaction product was solketal with 86.6–98% selectivity. Conversion of glycerol depended on the Brønsted acidity. The most active sample, namely, MM activated with 0.5 mol/dm³ HNO₃, showed good reusability for 3 catalyst cycles.

Язык оригинала	английский
Страницы (с-по)	65-69
Число страниц	5
Журнал	Catalysis Communications
Том	90
DOI	https://doi.org/10.1016/j.catcom.2016.11.020
Состояние	Опубликовано - 1 февр. 2017

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10.1016/j.catcom.2016.11.020

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title = "Effect of nitric acid modification of montmorillonite clay on synthesis of solketal from glycerol and acetone",

abstract = "The effect of acid modification of a natural montmorillonite clay (MM) by HNO3 on the catalytic properties of MM from Dash-Salakhlinsk (Kazakhstan) has been investigated in the synthesis of solketal from glycerol and acetone in solvent free and acetonitrile media. HNO3 concentration allowed to control the chemical composition, the surface acidity, the porous structure of the acid-activated MMs and their catalytic performance. The main reaction product was solketal with 86.6–98% selectivity. Conversion of glycerol depended on the Br{\o}nsted acidity. The most active sample, namely, MM activated with 0.5 mol/dm3 HNO3, showed good reusability for 3 catalyst cycles.",

keywords = "Acetone, Acid activation, Glycerol, Montmorillonite, Solketal, OCTAHYDRO-2H-CHROMEN-4-OL, VANILLIN, ACETALIZATION, CATALYTIC CONVERSION",

author = "Timofeeva, {Maria N.} and Panchenko, {Valentina N.} and Krupskaya, {Victoria V.} and Antonio Gil and Vicente, {Miguel A.}",

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Effect of nitric acid modification of montmorillonite clay on synthesis of solketal from glycerol and acetone. / Timofeeva, Maria N.; Panchenko, Valentina N.; Krupskaya, Victoria V. и др.

В: Catalysis Communications, Том 90, 01.02.2017, стр. 65-69.

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

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T1 - Effect of nitric acid modification of montmorillonite clay on synthesis of solketal from glycerol and acetone

AU - Timofeeva, Maria N.

AU - Panchenko, Valentina N.

AU - Krupskaya, Victoria V.

AU - Gil, Antonio

AU - Vicente, Miguel A.

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AB - The effect of acid modification of a natural montmorillonite clay (MM) by HNO3 on the catalytic properties of MM from Dash-Salakhlinsk (Kazakhstan) has been investigated in the synthesis of solketal from glycerol and acetone in solvent free and acetonitrile media. HNO3 concentration allowed to control the chemical composition, the surface acidity, the porous structure of the acid-activated MMs and their catalytic performance. The main reaction product was solketal with 86.6–98% selectivity. Conversion of glycerol depended on the Brønsted acidity. The most active sample, namely, MM activated with 0.5 mol/dm3 HNO3, showed good reusability for 3 catalyst cycles.

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KW - Solketal

KW - OCTAHYDRO-2H-CHROMEN-4-OL

KW - VANILLIN

KW - ACETALIZATION

KW - CATALYTIC CONVERSION

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