Method for regenerating functional acidic ion liquid catalyst



The invention discloses a method for regenerating a functional acidic ion liquid 1-(3-sulfo)propyl-3-methylimidazolyl p-toluenesulfonate catalyst. The method comprises the following steps: treating and acidifying an acidic molecular sieve with a sodium chloride solution and sulfuric acid, and treating the inactive functional acidic ion liquid with the acidified molecular sieve until the activity of the inactive catalyst is restored to 90% above. The regeneration cost is much lower than the synthesis cost of the new catalyst. The method has the advantages of low cost and high efficiency, and has favorable economical and environmental benefits.




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Cited By (1)

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