| Popis: |
Esters of Butanedioic acid (succinic acid) are appealing renewable esters as a fuel additive and solvents. In present study, we have investigated reaction routes for the esterification of Succinic acid (SA)with alcohols like MeOH, ethanol and 2-PrOH using heterogeneous catalyst D-Hβ (moderate bronsted acidity) in Microwave (MW) irradiated reactor to increase yield and minimise waste generation.Using Box-Behnken design (BBD) approach, operating parameters such as reaction time, microwave power and catalyst dosing were optimized for SA esterification with methanol. At optimum condition using D-Hβ catalyst, 99% maximum conversion was achieved with 98% selectivity of Dimethyl Succinate (DMS). At optimum condition, esterification of SA with ethanol and propanol were also performed.Use of D-Hβ is economically more advantageous as it can be reused directly without any prior washing and also showed significant activity. |
