METHOD OF PRODUCING ALKYL ESTERS OF FATTY ACIDS Russian patent published in 2016 - IPC C11C3/10 C12P7/62 C07C67/02 B82B1/00 

FIELD: technological processes.

SUBSTANCE: invention relates to a method of producing alkyl esters of fatty acids (AEFA) and can be used in petrochemical, fuel and other industries. Method of producing alkyl esters of fatty acids is carried out by re-esterification reaction of vegetable oil with an alkylating agent methanol in supercritical carbon dioxide medium while heating in presence of immobilised lipase, where matrix of immobilised lipase used is magnetically separated iron-containing nanoparticles with modified 3-(aminopropyl)-triethoxysilane surface, molar ratio of vegetable oil to methanol ranges from 1:3 to 1:6, re-esterification reaction is carried out at temperature from 40 to 60 °C and pressure of carbon dioxide from 10.0 to 20.0 MPa for 3-5 hours in a neutral medium.

EFFECT: technical result is improvement of manufacturability, efficiency and stability of selective production of AEFA.

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