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| Synthesis of green plasticizers from swill-cooked dirty oil catalyzed by ion exchange resin |
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| KeyWord:swill-cooked dirty oil ion exchange resin plasticizer epoxidation |
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| Abstract: |
| Green plasticizers were synthesized by epoxidation of swill-cooked dirty oil using the ion exchange resin Amberlite IR-120 as catalyst. On the basis of dehydration, purification, alkali refining, physicochemical property and fatty acid composition analysis of swill-cooked dirty oil, the influences of the dosages of catalyst, 30%H2O2and acetic acid, reaction temperature and reaction time on the epoxidation reaction of swill-cooked dirty oil were discussed. The results demonstrated that the swill-cooked dirty oil had high degree of unsaturation, composed of palmitic acid (19.86%), oleic acid (34.98%) and linoleic acid(33.31%), and the theoretical epoxy value was 5.3 mol/100 g. In addition, the optimal conditions of epoxidation reaction were obtained as follows: mass ratio of swill-cooked dirty oil to 30%H2O2 1∶?2.5，mass ratio of swill-cooked dirty oil to acetic acid 1∶?0.9，dosage of catalyst 3%, reaction temperature 65?℃ and reaction time 3 h. Under the optimal conditions, the epoxy value of epoxidized swill-cooked dirty oil plasticizer was 4.61 mol/100 g and the relative epoxy conversion rate was up to 87%. |
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