Synthesis of dimethylcarbonate from urea and methanol catalyzed by various metal oxides and salts

ZHANG Zhi-zhi; SUN Xiao-lei; ZHANG Xi-wen; FANG Xiang-chen

Volume 43 Issue 11

Nov. 2015

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ZHANG Zhi-zhi, SUN Xiao-lei, ZHANG Xi-wen, FANG Xiang-chen. Synthesis of dimethylcarbonate from urea and methanol catalyzed by various metal oxides and salts[J]. Journal of Fuel Chemistry and Technology, 2015, 43(11): 1375-1379.

Citation:

ZHANG Zhi-zhi, SUN Xiao-lei, ZHANG Xi-wen, FANG Xiang-chen. Synthesis of dimethylcarbonate from urea and methanol catalyzed by various metal oxides and salts[J]. Journal of Fuel Chemistry and Technology, 2015, 43(11): 1375-1379.

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Synthesis of dimethylcarbonate from urea and methanol catalyzed by various metal oxides and salts

1.
East China University of Science and Technology, Shanghai 200237, China;
2.
Fushun Research Institute of Petroleum and Petrochemicals, Fushun 113001, China

Received Date: 2015-07-01
Rev Recd Date: 2015-08-23
Publish Date: 2015-11-30

Abstract

Abstract

Various metal oxides and metallic salts were used as a catalyst in the synthesis of dimethyl carbonate (DMC) from urea and methanol in an autoclave. The results indicated that the hydrated metallic salt is most catalytically active in DMC synthesis among various metal oxides and salts considered in this work. Furthermore, a binary catalyst, viz, Zn(NO₃)₂ combined with hydroxyl containing compounds, can noticeably enhance the yield of DMC, in comparison with the single catalyst of both Zn(NO₃)₂ and the hydroxyl containing compound, which may be ascribed to a synergistic effect between Zn(NO₃)₂ and the hydroxyl group. Among various binary catalysts, Zn(NO₃)₂-SiO₂ exhibits the best catalytic performance; the yield of DMC reaches 4.5% over Zn(NO₃)₂-SiO₂ with a Zn(NO₃)₂ to SiO₂ weight ratio of 2.
- dimethyl carbonate,
- urea,
- methanol,
- methanolysis,
- binary catalyst,
- metallic salt,
- metal oxide,
- hydroxyl

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References(18)

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