PROCESS FOR PREPARING METHYL ESTERS OF FATTY ACIDS

The invention relates to a process for preparing methyl esters of the fatty acids, used as fuels for Diesel engines, ecological or intermediary solvents for surface-active substances. According to the invention, the process consists in that the fat materials, as vegetal oils or animal fats, are trea...

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Bibliographische Detailangaben
Hauptverfasser: IG EU LAUREN IU DANIEL, STEPAN EMIL, IG EU VALENTINA, SEVER ERBAN
Format: Patent
Sprache:eng ; rum
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Zusammenfassung:The invention relates to a process for preparing methyl esters of the fatty acids, used as fuels for Diesel engines, ecological or intermediary solvents for surface-active substances. According to the invention, the process consists in that the fat materials, as vegetal oils or animal fats, are treated with an alkaline hydroxide methanol solution, at temperatures of 15...50 C, for 30...60 min, afterwards the raw glycerine is separated from the methyl esters of the fatty acids and the latter are purified by solvent extraction, at temperatures of 15...40 C, to obtain a highly efficient advanced purity product. Invenţia se referă la un procedeu de obţinere a esterilor metilici ai acizilor graşi, utilizaţi drept combustibili pentru motoare diesel, solvenţi ecologici sau intermediari, pentru substanţe tensioactive. Procedeul conform invenţiei constă în aceeacă materiile grase, de tipul uleiurilor vegetale sau al grăsimilor animale, se tratează cu o soluţie metanolică de hidroxid alcalin, la temperaturi de 15...50°C, timp de 30...60 min, după care se separă glicerina brută de esterii metilici ai acizilor graşi şi aceştia din urmă se purifică prin extracţie cu solvent, la temperaturi de 15...40°C, cu obţinerea, cu randament ridicat, a unui produs cu puritate avansată.