负载型磷钨酸催化剂的制备、 表征及酯交换制备生物

J4 ›› 2012, Vol. 50 ›› Issue (02): 346-350.

负载型磷钨酸催化剂的制备、表征及酯交换制备生物

徐玲^1,2, |陈建军¹, |张立明¹, |刘宗瑞¹

1. 内蒙古民族大学化学化工学院, |内蒙古通辽 028000； 2. |内蒙古自治区高校蓖麻产业工程技术研究中心, |内蒙古通辽 028000

收稿日期:2011-08-31 出版日期:2012-03-26 发布日期:2012-03-21
通讯作者: 刘宗瑞 E-mail:liuzr@imun.edu.cn

Preparation, Characterization of Supported Phosphotungstic Acid Catalyst and Its Application to Transesterification |to Produce Biodiesel

XU Ling^1,2, CHEN Jianjun¹, ZHANG Liming¹, LIU Zongrui¹

1. College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities, Tongliao 028000, Inner Mongolia Autonomous Region,
China|2. Industrial Engineering Research Center of Castor of Inner Mongolia University, Tongliao 028000, Inner Mongolia Autonomous Region, China

Received:2011-08-31 Online:2012-03-26 Published:2012-03-21
Contact: LIU Zongrui E-mail:liuzr@imun.edu.cn

摘要/Abstract

摘要：

通过浸渍法将磷钨酸负载于Wormlike状介孔载体上, 制备负载型磷钨酸催化剂, 并采用X射线衍射（XRD）、红外光谱(FRIR)、 N2吸附脱附等方法对载体和负载型催化剂进行表征. 将负载型磷钨酸催化剂用于蓖麻油和甲醇的酯交换反应制备生物柴油, 用高碘酸氧化法测定酯交换的转化率. 考察反应温度、甲醇和蓖麻油物质的量比、反应时间和磷钨酸负载量等参数对酯交换反应的影响. 结果表明，在55 ℃, 醇油物质的量比为6, 反应时间2 h, 磷钨酸负载量为50%的催化剂条件下，酯交换转化率可达95.1%.

关键词: 负载型磷钨酸；蓖麻油；酯交换；生物柴油

Abstract:

The supported phosphotungstic acid catalysts were prepared by loading phosphotungstic acid on the Wormlike mesporous carrier via the impregnation method. The supported catalysts and carrier were characterized by XRD, FTIR, N2 adsorptiondesorption and so on. The biodiesel was prepared by transesterification of castor oil and methanol with supported phosphotungstic acid as the catalyst. The conversion of transesterification was determined by the method of periodates oxidation. The effects of reaction parameters such as reaction temperature, time and n(methanol) ∶n(castor oil) on the transesterification were studied. At 55 ℃, the n(methanol) ∶[KG-*3]n(castor oil) of 6, reaction time of 2 h, phosphotungstic acid loading of 50%, the conversion rate of transesterification was up to 951%.

Key words: supported phosphotungstic acid, castor oil, transesterification, biodiesel

中图分类号:

O611

徐玲, 陈建军, 张立明, 刘宗瑞. 负载型磷钨酸催化剂的制备、表征及酯交换制备生物[J]. J4, 2012, 50(02): 346-350.

XU Ling, Chen-Jian-Jun, Zhang-Li-Meng, Liu-Zong-Rui. Preparation, Characterization of Supported Phosphotungstic Acid Catalyst and Its Application to Transesterification |to Produce Biodiesel[J]. J4, 2012, 50(02): 346-350.

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