Preparation of Fe3O4@SiO2-ZnO catalyst and its catalytic synthesis of rosin glycol ester

编号 020033504

推送时间 20220321

研究领域 林产化工 

年份 2022 

类型 期刊 

语种 英语

标题 Preparation of Fe3O4@SiO2-ZnO catalyst and its catalytic synthesis of rosin glycol ester

来源期刊 Open Chemistry

期 第335期

发表时间 20210920

关键词 rosin;  Fe3O4@SiO2-ZnO;  rosin glycol ester;  esterification; 

摘要 In order to solve the problems of low recovery, low availability, and high cost in the synthesis of rosin glycol ester, a series of supported ZnO magnetic catalysts were prepared with Fe3O4 as the magnetic center, and their structures and compositions were characterized by TEM, XRD, and XPS. Through screening, the results show that Fe3O4@SiO2-ZnO has the best catalytic effect, far better than other catalysts, and has good stability. At the same time, the effects of zinc source and its load and different reaction conditions on the synthesis of rosin glycol ester were also investigated. The results showed that: When zinc chloride was used as zinc source, theoretical loading of zinc source was 0.45 g, reaction temperature was 270 degrees C, reaction time was 5 h, and catalyst dosage was 0.2 g, the esterification rate of rosin-glyceryl ester was 87.2% and acid value was 26.5 mg KOH g(-1).

服务人员 尚玮姣

服务院士 宋湛谦

PDF文件 浏览全文