کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4762833 | 1422947 | 2018 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An efficient and green pathway for continuous Friedel-Crafts acylation over α-Fe2O3 and CaCO3 nanoparticles prepared in the microreactors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
α-Fe2O3 nanoparticles were prepared by using a continuous precipitation method with a valve assisted micromixer in the presence of iron (III) sulfate and ammonia water. The resulting nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM). Meanwhile, CaCO3 nanoparticles were synthesized in a tube-in-tube flow reactor AF-2400. The acylation process catalyzed by modified lipophilic α-Fe2O3 and CaCO3 nanoparticles in the flow reactor were systematically investigated. Under the optimal conditions, a yield of 97.8% was obtained. Addition of CaCO3 nanoparticles resulted in higher catalytic efficiency compared with pure modified α-Fe2O3 nanoparticles. Moreover, this novel acylation also worked well for other substrates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 331, 1 January 2018, Pages 443-449
Journal: Chemical Engineering Journal - Volume 331, 1 January 2018, Pages 443-449
نویسندگان
Zheng Fang, Wei He, Tao Tu, Niuniu Lv, Chuanhong Qiu, Xin Li, Ning Zhu, Li Wan, Kai Guo,