Ion exchange resin catalysed etherification of ethylene and propylene glycols with isobutylene

Jayadeokar, S. S. ; Sharma, M. M. (1993) Ion exchange resin catalysed etherification of ethylene and propylene glycols with isobutylene Reactive Polymers, 20 (1-2). pp. 57-67. ISSN 0923-1137

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0923-1137(93)90066-O

Abstract

Etherification of ethylene and propylene glycols with isobutylene was carried out in the presence of cation exchange resin catalysts, Amberlyst-15, Indion-130, and a homogeneous catalyst, p-toluene sulfonic acid. Kinetics of these reactions was studied in a magnetically stirred 1.0 × 10-4 m3 capacity autoclave in the temperature range 50-70°C. The maximum conversion of glycols was obtained at 60°C and 10% loading of Amberlyst-15 catalyst. Aspects of mono- and di-etherification and etherification of primary versus secondary OH groups in monopropylene glycol were studied. A pseudohomogeneous model fitted the data very well. Optimum values of the rate constants were obtained numerically. The ethers formed could be deetherified easily at 120°C with the same catalyst.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Ethylene Glycol; Propylene Glycol; Tert-butyl Ethers; Ion Exchange Resin Catalysts
ID Code:46142
Deposited On:02 Jul 2011 10:52
Last Modified:07 Jul 2011 04:23

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