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Synthesis of dimethyl carbonate from urea and methanol catalyzed by the metallic compounds at atmospheric pressure

Paper ID Volume ID Publish Year Pages File Format Full-Text
52613 46878 2006 6 PDF Available
Title
Synthesis of dimethyl carbonate from urea and methanol catalyzed by the metallic compounds at atmospheric pressure
Abstract

A novel route was proposed for producing dimethyl carbonate (DMC) at atmospheric pressure from urea and methanol catalyzed by the metallic compounds with a high boiling point electron donor compounds (polyethylene glycol dimethyl ether) (PGDE) as solvent. The effects of various operation conditions, such as methanol/urea initial molar ratio, catalyst concentration, urea/PGDE initial mass ratio, flow rate of circulating, reaction temperature, stirring speed and reaction time on DMC yield were investigated, respectively. Experimental results indicate that the using of PGDE as solvent enable this synthesis reaction to reach the requisite temperature and restrain the decomposition of urea and MC; removing the products, DMC and ammonia effectively from the reaction system in time is important to improve the yield of DMC. The DMC yield of 28.8% can be obtained in the optimal reaction conditions. This new process shows some advantages such as easily operating, effectively removing NH3 from the reaction system and lower cost.

Keywords
Dimethyl carbonate; Metallic compound; Urea; Methanol; Atmospheric pressure
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Synthesis of dimethyl carbonate from urea and methanol catalyzed by the metallic compounds at atmospheric pressure
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 7, Issue 7, July 2006, Pages 472–477
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
100% Money Back Guarantee
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