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The Nature of Acid-Catalyzed Acetalization Reaction of 1,2-Propylene Glycol and Acetaldehyde
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  • Journal title : Korean Chemical Engineering Research
  • Volume 53, Issue 4,  2015, pp.463-467
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2015.53.4.463
 Title & Authors
The Nature of Acid-Catalyzed Acetalization Reaction of 1,2-Propylene Glycol and Acetaldehyde
Cheng, Chen; Chen, Hui; Li, Xia; Hu, Jianli; Liang, Baochen;
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We investigated catalytic activity of ion-exchange resins in acetalization of 1,2-propylene glycol with acetaldehyde. The impacts of reaction variables, such as temperature, reaction time, catalyst loading and feedstock composition, on the conversion of 1,2-propylene glycol were measured. The life of the catalyst was also studied. Furthermore, the reaction kinetics of 1,2-propylene glycol acetalization was studied. It was found that reaction rate followed the first-order kinetics to acetaldehyde and 1,2-propylene glycol, respectively. Therefore, overall acetalization reaction should follow the second-order reaction kinetics, expressed as. Key words: 1,2-propylene Glycol, 2,4-dimethyl-1,3-dioxolane, Ion-exchange Resin, Polyhydroxy Compounds, Acetalization $r
1,2-propylene Glycol;2,4-dimethyl-1,3-dioxolane;Ion-exchange Resin;Polyhydroxy Compounds;Acetalization;
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