Patent ID: 9174919
Filing Date: 2015-11-03
Classification: B01J,C07C,C11C

Abstract:
1. A process for preparation of fatty acid esters with 100 mol % selectivity as biodegradable lubricant base oils wherein the said process comprising the steps of: (a) providing recyclable, solid, hydrophobic, acido-basic bifunctional, phosphonate catalyst of molecular formula wherein X refers to phenyl phosphonate, Y refers to HPO 4 2− or HPO 3 2− , M refers to a metal ion, said metal being of Zr, the value of n varies from 0.2 to 1.8 and the value of m varies from 0 to 5; (b) contacting a fatty compound with an alcohol in a molar ratio ranging between 0.3 and 9 in presence of 3 to 10% catalyst by weight of fatty compound as provided in step (a); and (c) subjecting the reaction mixture as obtained in step (b) to a temperature in the range of 110 to 200° C. and for a period in the range of 0.5 to 8 h followed by separating the catalyst from liquid products and separating the fatty acid esters from unreacted starting materials.