Publikace detail

Epoxidation of oils and esters of higher fatty acids – monitoring of reaction

Autoři: Hájek Martin | Kocián David | Straková Anna | Douda Miroslav | Bělava Ondřej

Rok: 2022

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	Epoxidation of oils and esters of higher fatty acids – monitoring of reaction	The monitoring of epoxidation process is important because it allows to control the degree of epoxidation. Several monitoring methods are usually used, such as determination of iodine value, the epoxide equivalent weight, kinematic viscosity, or infrared spectroscopy. However, these methods are not able to determine the course of epoxidation in detail, they determine only the total decrease of ester content. On the other hand, the chromatographic methods enable to determine each single component of reaction mixture during time, i.e., esters with various degree of epoxidation. The course of epoxidation will be determined by two chromatographic methods and the results will be compared mutually and with the results of other methods. During epoxidation, many intermediates are formed, which will be identified and their dependency on time will be determined. Moreover, various esters with different composition of higher fatty acids will be used, i.e., with different amount of double bonds. The detailed knowledge of reaction course will allow to control better the epoxidation process and so reduce the reaction cost and raw material consumption.	epoxidation; monitoring of reaction; epoxides; gas chromatography

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