Ionic Liquid-Coordinated Ferrous Acetate Complex Immobilized on Bentonite As a Novel Separable Catalyst for PET Glycolysis
Ionic Liquid-Coordinated Ferrous Acetate Complex Immobilized on Bentonite As a Novel Separable Catalyst for PET Glycolysis
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DOI：
10.1021/acs.iecr.5b03857
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发表时间：
2015-12-23
影响因子：
4.2
通讯作者：
ElMetwally, A. E.
中科院分区：
文献类型：
--
作者：
Al-Sabagh, A. M.;Yehia, F. Z.;ElMetwally, A. E.
将[Bmim-Fe] [（OAc）（3）]浸渍在膨润土上，制备了离子液体配位的膨润土固载醋酸亚铁配合物[Bmim-Fe] [（OAc）（3）]/膨润土。采用FTIR、XRD和总碳（TC）对催化剂进行了表征。该催化剂在温和条件下对聚对苯二甲酸乙二醇酯（PET）的醇解反应表现出较高的催化活性。当催化剂用量为1.0 g，乙二醇用量为20 g，PET用量为3.0 g，反应温度为190 ℃，反应时间为3 h时，PET转化率为100%，对苯二甲酸二（2-羟乙基）酯（BHET）产率为44%。计算了PET醇解反应的活化能为51.6kJ/mol。
Ionic liquid-coordinated ferrous acetate complex immobilized on bentonite ([Bmim-Fe] [(OAc)(3)]/bentonite) was prepared by impregnation of [Bmim-Fe] [(OAc)(3)] on bentonite. The prepared catalyst was characterized using FTIR, XRD and total carbon (TC). The catalyst showed a high catalytic activity in the glycolysis of polyethylene terephthalate (PET) under mild condition. Maximum activity was observed with a PET conversion of 100% and bis(2-hydroxyethyl)terephthalate (BHET) yield of 44% under the optimum conditions of catalyst (1.0 g), ethylene glycol (20 g) and PET (3.0 g) at 190 degrees C for 3 h. The activation energy of PET glycolysis using the prepared catalyst was calculated and found to be 51.6 kJ/mol.