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- W2382031773 abstract "Objective:To optimize the technology of synthesizing acetylsalicylic acid using 001×7 strong-acidic cation-exchange resin as catalyst.Methods:Orthogonal experiment was performed to examine the effect of molar ratio of reactants,reaction time,dosage of catalyst,and reaction temperature on the yield of product as well as the efficiency and frequencies of the resin recycled and shifted on the synthesis.Results:The optimal reaction conditions were 3∶1(the ratio of acetic anhydride to salicylic acid,n:n),in a dosage of the resin 14.50% of salicylic acid,for the reaction time of 120 min at temperature of 60 ℃,which led to a yield of 77.93%.Conclusion:001×7 strong-acidic cation-exchange resin works well on esterification reaction as a environmentally friendly catalyst and is worthy of wider use,for it has efficient activity,less adverse reaction and recyclable advantages." @default.
- W2382031773 created "2016-06-24" @default.
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- W2382031773 date "2012-01-01" @default.
- W2382031773 modified "2023-09-24" @default.
- W2382031773 title "Synthesis of acetylsalicylic acid using strong-acidic cation-exchange resin as catalyst" @default.
- W2382031773 hasPublicationYear "2012" @default.
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