摘要
以氯化锑为原料,活化后坡缕石(HATP)为载体,聚乙二醇和异丙基三(二辛基焦磷酸酰氧基)钛酸酯混合溶液为助剂,制备了聚对苯二甲酸乙二酯合成用钛锑复合催化剂Sb/Ti/HATP,对其进行表征,并利用“FWO法”和“等转化率法”评估其催化性能。结果表明:Sb/Ti/HATP的比表面积可达156.801 3 m^(2)/g,平均表观活化能可降至42.84 kJ/mol,催化剂活性和热稳定性显著提高。
A titanium-antimony composite catalyst(Sb/Ti/palygorskite[HATP])for polyethylene terephthalate syntheis was prepared with antimonous chloride as raw material,activated HATP as carrier,polyethylene glycol and Isopropyl tri(dioctylpyrophosphate)titanate mixed solution as assistant,which was characterized and whose catalytic performance was evaluated by FWO method and equal conversion method.The results show that the specific surface area of Sb/Ti/HATP is as high as 156.8013 m^(2)/g,and its average apparent activation energy can be reduced to 42.84 kJ/mol,its catalytic activity and thermal stability are significantly improved.
作者
王泽男
杨淑娟
来雷
杨飞
崔科丛
张秀梅
张勇
Wang Ze′nan;Yang Shujuan;Lai Lei;Yang Fei;Cui Kecong;Zhang Xiumei;Zhang Yong(Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Ministry of Education,Zhejiang Sci-Tech University,Hangzhou 310018,China;Company Limited of Zhejiang Transfar Whyyon Chemical,Hangzhou 311231,China;Company Limited of Zhejiang Yubo New Material,Taizhou 318000,China)
出处
《合成树脂及塑料》
CAS
北大核心
2023年第5期7-11,共5页
China Synthetic Resin and Plastics
基金
浙江省重点研发计划项目(2020C04015,2021C03160)
浙江省基础公益研究计划项目(LGF18C160002,LY19C160010)
浙江理工大学科研启动基金(111531326 12101,11150131722121)。
关键词
聚对苯二甲酸乙二酯
钛锑复合催化剂
坡缕石
表观活化能
催化剂活性
polyethylene terephthalate
antimony-titanium composite catalyst
palygorskite
apparent reaction activation energy
catalytic activity
