碱金属化合物催化同时合成碳酸二甲酯和聚对苯二甲酸乙二醇酯

CIESC Journal

• RESEARCH NOTES • 上一篇

碱金属化合物催化同时合成碳酸二甲酯和聚对苯二甲酸乙二醇酯

张丹^1,2; 王庆印¹; 姚洁¹; 王越¹; 曾毅¹; 王公应¹

¹ Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China ² Graduate School of Chinese Academy of Sciences, Beijing 100039, China

收稿日期:2007-04-05 修回日期:1900-01-01 出版日期:2007-10-28 发布日期:2007-10-28
通讯作者: 张丹

Simultaneous synthesis of dimethyl carbonate and poly (ethylene terephthalate) using alkali metals as catalysts

ZHANG Dan^1,2; WANG Qingyin¹; YAO Jie¹; WANG Yue¹; ZENG Yi¹; WANG Gongying¹

¹ Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
² Graduate School of Chinese Academy of Sciences, Beijing 100039, China

Received:2007-04-05 Revised:1900-01-01 Online:2007-10-28 Published:2007-10-28
Contact: ZHANG Dan

摘要/Abstract

摘要： Dimethyl carbonate (DMC) and poly(ethylene terephthalate) was simultaneously synthesized by the transesterification of ethylene carbonate (EC) with dimethyl terephthalate (DMT) in this paper. This reaction is an excellent green chemical process without poisonous substance. Various alkali metals were used as the catalysts. The results showed alkali metals had catalytic activity in a certain extent. The effect of reaction condition was also stud-ied. When the reaction was carried out under the following conditions: the reaction temperature 250℃, molar ratio of EC to DMT 3︰1, reaction time 3h, and catalyst amount 0.004 (molar ratio to DMT), the yield of DMC was 68.9%.

关键词: ethylene carbonate;dimethyl terephthalate;dimethyl carbonate;poly (ethylene terephthalate);transesterification;catalyst

Abstract: Dimethyl carbonate (DMC) and poly(ethylene terephthalate) was simultaneously synthesized by the transesterification of ethylene carbonate (EC) with dimethyl terephthalate (DMT) in this paper. This reaction is an excellent green chemical process without poisonous substance. Various alkali metals were used as the catalysts. The results showed alkali metals had catalytic activity in a certain extent. The effect of reaction condition was also stud-ied. When the reaction was carried out under the following conditions: the reaction temperature 250℃, molar ratio of EC to DMT 3︰1, reaction time 3h, and catalyst amount 0.004 (molar ratio to DMT), the yield of DMC was 68.9%.

Key words: ethylene carbonate, dimethyl terephthalate, dimethyl carbonate, poly (ethylene terephthalate), transesterification, catalyst

张丹, 王庆印, 姚洁, 王越, 曾毅, 王公应. 碱金属化合物催化同时合成碳酸二甲酯和聚对苯二甲酸乙二醇酯[J]. CIESC Journal.

ZHANG Dan, WANG Qingyin, YAO Jie, WANG Yue, ZENG Yi, WANG Gongying. Simultaneous synthesis of dimethyl carbonate and poly (ethylene terephthalate) using alkali metals as catalysts[J]. .

参考文献

1 Wang, H., Wang, M.H., Zhang, W.Y., Zhao, N., Wei, W., Sun, Y.H., “Synthesis of dimethyl carbonate from pro-pylene carbonate and methanol using CaO-ZrO solid so-lutions as highly stable catalysts”, Catal. Today, 115, 107—110(2006).
2 Wang, H., Wang, M.H., Liu, S.G., Zhao, N., Wei, W., Sun, Y.H., “Influence of preparation methods on the structure and performance of CaO-ZrO2 catalyst for the synthesis of dimethyl carbonate via transesterification”, J. Mol. Catal A Chem., 258, 308—312(2006).
3 King, S.T., “Oxidative carbonylation of methanol to di-methyl carbonate by solid state ion-exchanged CuY cata-lysts”, Catal. Today, 33, 173—182(1997).
4 Wang, X.P., Yang, B.L., Wang, D.P., Zhai, X.W., “Reac-tive rectifying for producing dimethyl carbonate”, Chem. Eng. J., 122, 15—20(2006).
5 Li, Y., Zhao, X.Q., Wang, Y.J., “Synthesis of dimethyl carbonate from methanol propylene oxide and carbon dioxide over KOH/4A molecular sieve catalyst”, Appl. Catal A Gen., 279, 205—208(2005).
6 Run, M.G., Wu, S.Z., Zhang, D.Y., Gang, W., “Melting behaviors and isothermal crystallization kinetics of poly(ethylene terephthalate)/mesoporous molecular sieve composite”, Polymer, 46, 5308—5316(2005).
7 Serio, M.D., Tesser, R., Ferrara, A., Santacesaria, E., “Heterogeneous basic catalysts for the transesterification and the polycondensation reactions in PET production from DMT”, J. Mol. Catal A Chem., 212, 251—257(2004).
8 Berti, C., Colonna, M., Fiorini, M., Marianucci, E., Sisti, L., “New route to poly (alkylene terephthalate)s by reac-tion of dimethyl terephthalate with cyclic carbonates”, Macromol. Chem. Phys., 203, 845—853(2002).
9 Du, Z.P., Yao, J., Wang, G.Y., “Transesterification of eth-ylene carbonate and dimethyl terephthalate over various catalysts”, Chin. J. Catal., 26(8), 637—638(2005). (in Chinese)
10 Nobuhachi, K., Hiroshi, H., Hideo, H., “Production of dialkyl carbonate”, Japan Pat., 143585 (2000).
11 Zhang, D., Jia, S.Y., Wang, Y., Yao, J., Zeng, Y., Wang, G.Y., “Studies on the simultaneous synthesis of dimethyl carbonate and poly(ethylene terephthalate) (Ⅰ) Catalytic activity of metal acetate in transesterification of ethylene carbonate with dimethyl terephthalate”, Chin. Chem. Lett., 17(12), 1607—1610(2006). (in Chinese)
12 Jiang, Q., “Catalyst, preparation method thereof and method for synthesizing methyl carbonate”, China Pat., 1544148 (2004).
13 Sun, Y.H., Wei, T., Wei, W., “Catalyst for synthesizing dimethyl carbonate and its preparation method”, China Pat., 1394678 (2003).
14 Wang, Z.X., Infrared Spectral Analysis and Identification of Polymer, Sichuan University Press, Sichuan (1989). (in Chinese)

碱金属化合物催化同时合成碳酸二甲酯和聚对苯二甲酸乙二醇酯

Simultaneous synthesis of dimethyl carbonate and poly (ethylene terephthalate) using alkali metals as catalysts

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价