Effect of hydrophobic and hydrophilic properties of solid acid catalysts on the esterification of maleic anhydride with ethanol

Autor:	Margandan Bhagiyalakshmi, Velayutham Murugesan, S. Vishnu Priya, Muthiahpillai Palanichamy, J. Herbert Mabel
Rok vydání:	2008
Předmět:	Diethyl fumarate Ethanol Chemistry Process Chemistry and Technology Maleic anhydride General Chemistry Solid acid Molecular sieve Catalysis chemistry.chemical_compound Organic chemistry Zeolite Isomerization
Zdroj:	Catalysis Communications. 9:2007-2012
ISSN:	1566-7367
DOI:	10.1016/j.catcom.2008.03.038
Popis:	Esterification of maleic anhydride with ethanol over Al-MCM-41 (Si/Al = 50,100 and 150) and Hβ zeolite was investigated in the liquid phase at 80, 100 and 120 °C. Monoesterification of maleic anhydride to monoethyl maleate (MEM) was found to be fast and independent of the presence of catalyst but subsequent esterification to diethyl maleate (DEM) was catalyst dependent. The absence of isomerisation of diethyl maleate to diethyl fumarate (DEF) over Al-MCM-41 molecular sieves is a significant advantage. Al-MCM-41 (50), Al-MCM-41 (100) and Hβ are convenient replacement for hazardous sulphuric acid used in the industrial esterification of maleic anhydride with ethanol.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::88d53984860a4d438c7d4dd470c6bf4f https://doi.org/10.1016/j.catcom.2008.03.038 Zobrazit plný text záznamu Full Text from ScienceDirect