The synthesis of some oleic acid esters (ethyl oleate,n-octyl oleate,oleyl oleate) catalyzed by lipase in some nonaqueous solvents have been studied.The results showed that the conversion of the above mentioned esterification reactions in three organic solvents of n-heptane,cyclohexane and methylbenzene are all very high and bit lower in supercritical CO 2 under the used experimental conditions.These results suggested that it would be very promising for the synthesis of oleic acid esters using supercritica...