Synthesis of Butadiene from Formaldehyde and Propylene on Cesium Salts of Silicotungstic Heteropoly Acid

Autor:	Irina I. Ivanova, I. A. Kasyanov, A. V. Shkuropatov, A. I. Nikiforov, О. D. Matveeva, I. V. Dobryakova, О. А. Ponomareva
Rok vydání:	2021
Předmět:	Heteropoly acid General Chemical Engineering Formaldehyde Energy Engineering and Power Technology chemistry.chemical_element General Chemistry Coke Fluorescence Catalysis chemistry.chemical_compound symbols.namesake Fuel Technology chemistry Geochemistry and Petrology Caesium symbols Selectivity Raman spectroscopy Nuclear chemistry
Zdroj:	Petroleum Chemistry. 61:916-924
ISSN:	1555-6239 0965-5441
DOI:	10.1134/s0965544121080120
Popis:	A one-stage gas-phase synthesis of butadiene from formaldehyde and propylene on silica-supported cesium salts of silicotungstic heteropoly acid was realized for the first time. The physicochemical properties of the catalysts were studied by X-ray fluorescence analysis, low-temperature nitrogen adsorption, XRD, SEM, Raman spectroscopy, and NH3–TPD. The coke deposits were studied by the TGA–DTA method. Analysis of the catalytic properties showed that an increase in the concentration of cesium atoms in CsxH4–xSiW12O40/SiO2 (x = 0–3) has a beneficial effect on the endurance of the catalyst but is accompanied by a decrease in activity and butadiene selectivity. In the case of CsH3SiW12O40/SiO2, the butadiene selectivity was 51 mol %.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::594a3b7c5076dd06bd7e06d4576e4df3 https://doi.org/10.1134/s0965544121080120 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.