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Three cationic exchange resins (PD206, CT269DR and CT275DR), supplied by Purolite®, with different physicochemical properties have been evaluated in the esterification reaction of the free fatty acid from the castor oil with 2-ethylhexanol in order to obtain products with interesting properties to be used as biolubricant basestock. These resins have been characterized by SEM, elemental analysis (CNHS),...
In this work, different commercial resins (Dowex 50W-X8, Amberlyst-15 and Purolite CT275DR) were characterized by FTIR spectroscopy, N2 adsorption-desorption isotherms, elemental analysis (CHNS), SEM, XPS data, TG analysis and acid-base titration to determinate the amount of Brönsted acid sites. These resins were tested in the esterification of free fatty acids coming from the castor oil (FACO) with...
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