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Chemistry and Industry of Forest Products ›› 2020, Vol. 40 ›› Issue (6): 8-14.doi: 10.3969/j.issn.0253-2417.2020.06.002

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Preparation of Rosin Glyceride Catalyzed by Fe3O4 Supported ZnO

Shitao YU1(), Haoxue ZOU1, Yaya LI1, Huimin ZHANG1, Yujing WANG2   

  1. 1. College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
    2. College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
  • Received:2020-09-07 Online:2020-12-28 Published:2020-12-29


A series of magnetic catalysts were prepared with Fe3O4 as magnetic center and ZnO as activity center, and the structures and compositions were characterized by TEM, XRD and XPS. The catalytic performances of the prepared catalysts were studied. The results showed that Fe3O4@SiO2-ZnO was of the best catalytic activity and stability. At the same time, the influences of factors on the synthesis of rosin glyceride, such as zinc source and its loading amount, different reaction conditions, were investigated. The results showed that when Fe3O4@SiO2-ZnO(ZnAc2)(zinc acetate as the zinc source, the theoretical load of zinc source 0.25 g) was catalyst, the reaction temperature was 240 ℃, the reaction time was 5 h, and the catalyst dosage was 0.2 g, the esterification rate and the acid value of rosin glyceride was 81.5% and 38.6 mg/g, respectively. The catalyst Fe3O4@SiO2-ZnO2(ZnAc2) had good stability. After repeated use for 5 times, the esterification rate remained above 80%.

Key words: rosin, esterification reaction, magnetic catalyst, acid catalysis

CLC Number: