油酸直接马来酸化制备C22 -三元羧酸Preparation of C22-tricarboxylic acid by Maleinisation of oleic acid
为解决C22-三元羧酸合成过程中均相催化剂残留、原料价格较高等问题,以油酸为原料,在路易斯酸催化下与马来酸酐进行Alder-ene加成反应,水解后得到C22-三元羧酸。对C22-三元羧酸的合成条件进行优化并对产物进行了鉴定;制备C22-三元酸钠表面活性剂并研究其表面性能。结果表明:C22-三元羧酸合成的最佳条件为以FePO4为催化剂、催化剂用量3%(以油酸物质的量计)、马来酸酐与油酸物质的量比3∶ 1、反应温度180 ℃、反应时间10 h,在此条件下C22-三元羧酸产率达到78%,油酸转化率为77.4%;通过质谱及核磁共振表征证明得到了较纯的C22-三元羧酸;催化剂经过5次回收利用并未出现明显...
Main Author: | 陈治家,赵杰,张铭远,邓林江,钮腾飞 CHEN Zhijia,ZHAO Jie,ZHANG Mingyuan,DENG Linjiang,NIU Tengfei |
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Format: | Article |
Language: | English |
Published: |
中粮工科(西安)国际工程有限公司
2023-01-01
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Series: | Zhongguo youzhi |
Subjects: | |
Online Access: | http://tg.chinaoils.cn/ch/reader/create_pdf.aspx?file_no=20230111&year_id=2023&quarter_id=1&falg=1 |
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