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[1]赵宁钰,朱伟光,丁明,等.改性KL沸石催化合成碳酸二甲酯[J].南京工业大学学报(自然科学版),2015,37(02):121-124.[doi:10.3969/j.issn.1671-7627.2015.02.023]
 ZHAO Ningyu,ZHU Weiguang,DING Ming,et al.Synthesis of dimethyl carbonate by modified zeolite KL[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2015,37(02):121-124.[doi:10.3969/j.issn.1671-7627.2015.02.023]
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改性KL沸石催化合成碳酸二甲酯()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
37
期数:
2015年02期
页码:
121-124
栏目:
出版日期:
2015-03-20

文章信息/Info

Title:
Synthesis of dimethyl carbonate by modified zeolite KL
文章编号:
1671-7627(2015)02-0121-04
作者:
赵宁钰朱伟光丁明史艳丽刘定华
南京工业大学 化学化工学院,江苏 南京 210009
Author(s):
ZHAO NingyuZHU WeiguangDING MingSHI YanliLIU Dinghua
College of Chemistry and Chemical Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
L型分子筛 碳酸二甲酯 非均相催化
Keywords:
L zeolite dimethyl carbonate heterogeneous catalysis
分类号:
TQ225.5
DOI:
10.3969/j.issn.1671-7627.2015.02.023
文献标志码:
A
摘要:
采用固相研磨法制备KOH负载于KL型分子筛的非均相催化剂KOH/KL,用于催化碳酸丙烯酯和甲醇合成碳酸二甲酯反应,探索其在不同KOH负载量、焙烧温度下对催化性能的影响; 采用X线衍射仪(XRD)及N2吸附仪进行表征分析。结果表明:焙烧温度为400 ℃、KOH负载量为30%的催化剂L型骨架结构未被破坏,活性组分很好地分散在孔道中; 在反应温度为70 ℃,反应4 h的条件下,碳酸丙烯酯转化率达到49.5%。
Abstract:
Heterogeneous KOH/KL zeolite catalysts were prepared by solid phase grinding. Their catalytic performances were evaluated by the synthesis of dimethyl carbonate from propylene carbonate and methanol.The influences of different KOH loading,calcination temperatures on catalyst performances were also investigated.The sample was characterized by X-ray diffraction(XRD)and nitrogen adsorption instrument.Results indicated that the structure of catalyst was not damaged and the active ingredient was dispersed well in the pore,when it was calcined at 400 ℃ with 30% of load capacity.The catalytic synthesis of dimethyl carbonate could achieve 49.5% conversion at 70 ℃ for 4 h.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-03-19
作者简介:赵宁钰(1990—),女,江苏南京人,硕士,主要研究方向为碳酸二甲酯的合成; 刘定华(联系人),研究员,E-mail:ncldh@njtech.edu.cn.
引用本文:赵宁钰,朱伟光,丁明,等.改性KL沸石催化合成碳酸二甲酯[J].南京工业大学学报:自然科学版,2015,37(2):121-124..
更新日期/Last Update: 2015-02-20