Patent ID: 9029583
Filing Date: 2015-05-12
Classification: C07C,C10G,C10L,C11C,Y02E,Y02P

Abstract:
1. A process for the preparation of fatty acid alkyl-esters (FAAE) from triglyceride oils selected from the group consisting of consisting of sunflower ( Helianthus annuus ) oil, groundnut ( Arachis hypogaea ) oil, mustard ( Brassica juncea ) oil, palmolein ( Elaeis guineensis ) oil, gingelly (sesame/til; Sesamum indicum ) oil, ricebran ( Oryza sativa ) oil, cottonseed ( Gossypium arboretum ) oil, corn ( Zea mays ) oil, soyabean ( Glycine max ) oil, castor ( Ricinus communis ) oil, neem ( Azadirachta indica ) oil, Jatrophy ( Jatropha curcus ) oil, karingatta ( Quassia indica ) oil, marotti ( Hydnocarpus wightiana ) oil, pungai ( Pongamia pinnata ) oil, and pinnai ( Calophyllum inophyllum ) oil using a solid base catalysts, the process comprising the steps of: (i) mixing alcohol and triglyceride oil in a molar ratio of alcohol: oil in the range of 1.5:1 to 30:1; (ii) adding a catalyst to the alcohol-oil mixture as obtained in step (i) in the range of 1 to 12 wt % with respect to the triglyceride oil, wherein the catalyst is a layered double hydroxide with the gereral formula [M(II) M (II) is Ca M (III) is Al A is interlayer anions selected from the group CO (iii) heating the alcohol-oil mixture as obtained in step (ii) at a temperature in the range of 30 to 100° C. for a period in the range of 1 to 24 hours to form a reaction mixture; (iv) filtering the reaction mixture as obtained in step (iii) to separate the catalyst from a filtrate, the filtrate containing glycerol and fatty add alkyl esters; and (v) separating glycerol from the filtrate as obtained in step (iv) to obtain the fatty acid alkyl esters.