Surfactant effect on the catalytic synthesis of 4,4-dimethyl-1,3-dioxane

Autor:	V. Z. Kuz’min, I. I. Safarova, A. G. Liakumovich, D. Kh. Safin
Rok vydání:	2009
Předmět:	Isobutylene chemistry.chemical_compound chemistry Pulmonary surfactant Phase (matter) Inorganic chemistry Condensation Formaldehyde Aqueous two-phase system Microemulsion Catalysis
Zdroj:	Catalysis in Industry. 1:190-195
ISSN:	2070-0555 2070-0504
Popis:	The main problem of 4,4-dimethyl-1,3-dioxane synthesis is the phase separation arising from the mutual insolubility of the aqueous phase, which contains formaldehyde and an acid catalyst, and the hydrocarbon phase, which contains isobutylene. Isobutylene condensation with formaldehyde has been investigated for the first time in the presence of surfactants with the aim of increasing the efficiency of the process. Surfactant admixtures provide high selectivity and a high reactant conversion, thus allowing the starting material consumption rate to be reduced. The surface and interfacial activities of the admixtures are evaluated. It is assumed that the surfactants cause the formation of microemulsions in the reaction medium and bring about micellar catalysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::68ce49accc710c952218dd7e876657a3 https://doi.org/10.1134/s2070050409030040 Zobrazit plný text záznamu Full text from SpringerLink