PtCl62-插层Mg/Al水滑石的合成及催化烯烃硅氢加成反应

被引：0

作者：

孙建平

闵彩娜

李诚

范宏

机构：

[1] 浙江大学化学工程与生物工程学系,化学工程联合国家重点实验室

来源：

科技通报 | 2013年 / 29卷 / 11期

关键词：

负载型催化剂; 镁铝水滑石; 氯铂酸; 硅氢加成; 三乙氧基硅烷;

D O I：

10.13774/j.cnki.kjtb.2013.11.020

中图分类号：

O643.32 [催化反应];

学科分类号：

摘要：

以尿素作为沉淀剂制备了镁铝水滑石前驱体,与氯铂酸溶液进行阴离子交换反应得到氯铂酸根插层镁铝水滑石催化剂。通过X射线粉末衍射(XRD)、氮气吸附脱附等温线和热重分析(TG-DTA)等对水滑石前驱体和插层催化剂进行了表征,实验研究了反应温度、反应时间和催化剂使用量对辛烯与三乙氧基硅烷硅氢加成反应产物收率的影响,及催化剂的可重复利用性能。研究表明,辛烯与三乙氧基硅烷的摩尔比为1∶1,反应温度为100°C,反应时间为5 h,催化剂中Pt含量为8.70×10-4mmol时,辛基三乙氧基硅烷收率达到91.2%,且在连续使用5次后,催化剂的反应活性没有明显的下降。此外,实验结果还表明所制备催化剂可以有效催化不饱和烯烃和三乙氧基硅烷的硅氢加成反应,且催化剂可以通过简单的离心进行有效分离。

引用

页码：20 / 25+63 +63

页数：7

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