Перевод названия: Sodium Hydrosulfate as the Catalyst for Carbohydrate Conversion into the Levulinic Acid and 5-Hydroxymetylfurfural Derivatives
Тип публикации: статья из журнала
Год издания: 2008
Ключевые слова: levulinic acid, 5-hydroxymethylfurfural, 5-Hydroxymethyl-2-furaldehyde, 5-buthoxymethylfurfural, 5-buthoxymethyl-2-furaldehyde, fructose, sodium hydrosulfate, butanol, catalysis
Аннотация: The new regenerable catalyst H2SO4 + Na2SO4 for the levulinic acid production has been developed. The catalyst provides product extraction from the reaction mass with n-butanol during the reaction. The acid-catalyzed dehydration process of fructose and sucrose in three systems (homogeneous water solution, homogeneous butanol solutiПоказать полностьюon and two-phase system water-butanol) has been studied and compared. The ester of levulinic acid and ether of 5-hydroxymethyl-2-furaldehyde were found to be the main products in the presence of butanol, and their total yield is of maximum in the two-phase system. It attains 83 - 90 mol. %. The structure of 5-buthoxymethyl-2-furaldehyde was identified by PMR, NMR 13C spectroscopy and GC-MS analysis. The results obtained show that to increase the product yields one should separate the products from the catalyst and carbohydrate converted during the acid-catalyzed conversion.
Журнал: Журнал Сибирского федерального университета. Серия: Химия
Выпуск журнала: Т. 1, № 1
Номера страниц: 35-49
ISSN журнала: 19982836
Место издания: Красноярск
Издатель: Федеральное государственное автономное образовательное учреждение высшего образования Сибирский федеральный университет