Ethylene glycol synthesis
- Product Name:Ethylene glycol
- CAS Number:107-21-1
- Molecular formula:C2H6O2
- Molecular Weight:62.07
This reaction is carried out in a manner comparable to that described for the preparation of propylene glycol from propylene oxide . Ethylene glycol is a colourless liquid, b.p. 197°C.
553-90-2
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107-21-1
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Yield:107-21-1 98%
Reaction Conditions:
with hydrogen in methanol at 179.84; under 18751.9 Torr;
Steps:
Catalyst activity tests
The gas-phase hydrogenation of DMO to EG was performed in astainless steel fixed-bed tubular reactor with an internal diameter of8 mm. The catalyst sample of 0.4 g (40-60 mesh) was placed in themiddle of the reactor tube with a height of about 35 mm. The catalystwas reduced in hydrogen atmosphere at 573 K for 4 h under 2.5 MPa,and then cooled to the desired reaction temperature (453 K). Then thereactant (10 wt% DMO (99.9% purity) in methanol (AR purity)solution) was injected continuously through a high-pressure pump(Lab Alliance Series II Pump). The reactions were performed at 453 Kand system pressure of 2.5 MPa. The molar ratio of H2/DMO was 80/1and the weight hourly space velocity (WHSV) of DMO was changedfrom 0.2 to 2.0 h-1.
References:
Zhao, Yujun;Zhang, Yaqing;Wang, Yue;Zhang, Jian;Xu, Yan;Wang, Shengping;Ma, Xinbin [Applied Catalysis A: General,2017,vol. 539,p. 59 - 69]
141-46-8
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107-21-1
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