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| 离子交换树脂催化地沟油合成绿色增塑剂的研究 |
| Synthesis of green plasticizers from swill-cooked dirty oil catalyzed by ion exchange resin |
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| DOI： |
| 中文关键词: 地沟油 离子交换树脂 增塑剂 环氧化 |
| 英文关键词:swill-cooked dirty oil ion exchange resin plasticizer epoxidation |
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| 中文摘要: |
| 以地沟油为原料，采用离子交换树脂Amberlite IR-120催化地沟油环氧化合成绿色增塑剂。在对地沟油进行脱水除杂、碱炼脱酸预处理，分析理化性质和脂肪酸组成的基础上，探讨了催化剂用量、30%H2O2用量、冰乙酸用量、反应温度及反应时间对环氧化反应的影响。结果表明：地沟油主要由棕榈酸（19.86%）、油酸（34.98%）和亚油酸（33.31%）组成，具有较高的不饱和度，理论环氧值为5.3 mol/100 g。最佳环氧化工艺条件为：地沟油与30%H2O2质量比1∶?2.5，地沟油与冰乙酸质量比1∶?0.9，催化剂用量3%，反应温度65?℃，反应时间3 h。在最佳条件下，制备得到的环氧地沟油增塑剂的环氧值为4.61 mol/100 g，相对环氧转化率可达87%。 |
| 英文摘要: |
| 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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