Національний Університет Біоресурсів І Природокористування України
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Національний Університет Біоресурсів І Природокористування УкраїниfiledCriticalНаціональний Університет Біоресурсів І Природокористування України
Priority to UAU201503881UpriorityCriticalpatent/UA102820U/en
Publication of UA102820UpublicationCriticalpatent/UA102820U/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
A process for the preparation of methyl ethers of safrole oil involves processes of filtration with separation of attendant impurities, neutralization of free fatty acids, oil washing with salt solution and water, decontamination and reesterification. Safrole oil with content of free fatty acids of 95-180 mg KOH/g is used, and neutralization thereof is performed by three-stage esterification with strong sulphuric acid in amount of 15 % of weight for 2 hours at a temperature of 60-65°C with constant stirring with separation of water and alcohol. Methanol and sulphuric acid are taken in mole ratio of 12:1, and refined oil is fed for reesterification with addition of methanol and catalyst KOH.
UAU201503881U2015-04-232015-04-23Process for the preparation of methyl ethers of safrole oil
UA102820U
(en)