优化Ti-PA利用响应表面方法有效催化废PET的醇化
Ruiyang Wen1, Guoliang Shen2, Yang Yu1
1School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang, 111003, China.
Environmental science and pollution research international
|April 29, 2024
概括
一种新型的甲 (Ti-PA) 催化剂有效催化聚乙烯二甲 (PET) 醇化. 这种新的Ti-PA催化剂实现了高产量,为PET回收和化学合成提供了有前途的途径.
科学领域:
- 催化剂是一种催化剂.
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
背景情况:
- 聚乙烯二甲酸盐 (PET) 的回收仍然是一个重大的环境挑战.
- 有效的催化剂对于开发可持续的PET降解过程至关重要.
研究的目的:
- 为了合成和表征一种新的甲 (Ti-PA) 催化剂.
- 为了评估Ti-PA在PET的醇化中的催化活性.
- 为了优化反应条件和探索反应机制.
主要方法:
- 通过使用酸和异烯酸酸盐的交换方法制备Ti-PA催化剂.
- 使用FT-IR,TG,Uv-vis,BET,SEM和EDS进行表征.
- 使用响应表面方法来优化酒精分解条件.
主要成果:
- Ti-PA催化剂在PET醇化中表现出良好的催化活性.
- 在最佳条件下,在191°C的3.98小时内产生了81.98%的BHET,使用0.86%的催化剂和13.7毫升的乙烯糖醇.
- 明显的激活能量被确定为75.52kJ/mol.
结论:
- 新型Ti-PA催化剂对PET醇化有效.
- 优化的工艺为PET降解提供了一种可靠的方法.
- -PA的活性与现有的催化剂相比或更高.
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