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杂多酸催化合成间甲基异丙苯
闫子璇1,曹 钢1,凌 云2,杜泽学2 |
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Catalytic Synthesis of m-IPT with Heteropolyacid Yan Zixuan1,Cao
Gang1,Ling Yun2,Du Zexue2 |
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[Abstract] The
process of m-IPT synthesis with toluene and propylene as raw mterial under
the catalytic action by supported heteropolyacid was studied.The activity
of catalyst and operation conditions was investigated in fix-bed reactor.On
these bases,the life test of the catalyst was carried out.The results
showed that the supported heteropolyacid can be used as catalyst in the
alkylation reaction of toluene and propylene.The best operation conditions
include reaction temperature of 140~160℃,WHSV of 2~5h-1,the
toluene to propylene ratio>5,reaction pressure of 1.0~2.5MPa,and the content
of water in toluene<100μL/L.The life test of the catalyst lasted for 2000h,with
the activity and selectivity unchanged,and the conversion rate of propylene
close to 100%,the IPT selectivity 91%~95.4%,and the content of o-IPT in
IPT about 3.7%.All above showed that,the catalyst has fine activity and
stability with bright future in commercial application. [Keywords] heteropolyacid;propylene;toluene;alkylation;m-IPT |
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| 作者简介:闫子璇,工程师,1993年毕业于华东理工大学感光材料专业,现在中国石化北京燕山分公司化学品事业部从事苯酚丙酮分解液脱盐工艺、异丙苯合成催化剂以及苯酚回收工艺等研究方面的技术工作。 | ||||||||
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