Potassium titanate as heterogeneous catalyst for methyl transesterification

Autor:	Sanghamitra Kandhual, N.P. Rout, Edgar Andrés Zúñiga González, Gregorio Guadalupe Carbajal Arízaga, Fernando López Dellamary, M. García-Guaderrama, Mariela Rojas Villalobos, Hugo Tiznado
Rok vydání:	2015
Předmět:	Materials science General Chemical Engineering Inorganic chemistry Transesterification Heterogeneous catalysis Titanate Catalysis Titanium oxide chemistry.chemical_compound chemistry Chemical engineering Alkoxide Hydrothermal synthesis Methanol
Zdroj:	Powder Technology. 280:201-206
ISSN:	0032-5910
DOI:	10.1016/j.powtec.2015.04.030
Popis:	Titanate and titanium oxide powders are photoactive materials widely used to prepare photocatalysts and solar cells. This work describes the unusual catalytic activity of potassium titanate to transesterificate edible oils. The solid powder prepared by hydrothermal synthesis presented low crystal quality as well as alkoxide and nitrate impurities. In a first run, the yield of methyl esters was close to 100% in a reaction conducted with 3.0% of catalyst and a ratio of 1:1 of methanol to oil mass at 50 °C. Although these soft reaction conditions are not suitable for recycling assays, the catalyst shows activity up to the third run in a sealed vessel at 120 °C for 1 h, which are common conditions for current heterogeneous catalysts.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ce1c1357835dd8dc8dad0eee44c53dcb https://doi.org/10.1016/j.powtec.2015.04.030 Zobrazit plný text záznamu Full Text from ScienceDirect