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- W2375732531 abstract "The coadsorption behavior and selectivity of salicylic acid and sulfosalicylic acid from aqueous solution on D201 resin were studied by using static and dynamic methods.The experimental results of the simultaneously competitive adsorption,preloading competitive adsorption and isotherm adsorption processes indicate that salicylic acid has very little influence on D201 resin adsorption of the sulfosalicylic acid,but the latter significantly depresses the adsorption of the salicylic acid.The predominant mechanism attributes to the competition of salicylic acid and sulfosalicylic acid for adsorption sites.In the binary solution of salicylic acid and sulfosalicylic acid(mass concentration ratio of 1 ∶ 1),the initial mass concentration can significantly affect the adsorption selectivity of D201 resin.At an initial mass concentration less than 500 mg/L,D201 resin shows almost no adsorption to either salicylic acid or sulfosalicylic acid.However,at initial mass concentrations of 1 000-2 000 mg/L,D201 resin can essentially absorb the sulfosalicylic acid with high selectivity,which can easily separate sulfosalicylic acid from the binary solution.The dynamic adsorption and desorption of 1.000 g D201 resin for the binary solution of salicylic acid and sulfosalicylic acid with the initial mass concentrations of 2 000 mg/L show a clear substitution crest in the effluent curve of salicylic acid in the exit adsorption water of 250 mL.The acids adsorbed in the resin can be quickly eluted by 5% NaCl+2% NaOH solution(mass fraction) at room temperature.The separation coefficient of sulfosalicylic acid vs salicylic acid is 300,and the recovery yield of sulfosalicylic acid is 96%.This investigation demonstrates that D201 resin can be successfully applied to separate salicylic acid and sulfosalicylic acid in aqueous solution." @default.
- W2375732531 created "2016-06-24" @default.
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- W2375732531 date "2011-01-01" @default.
- W2375732531 modified "2023-09-23" @default.
- W2375732531 title "Coadsorption behavior of salicylic acid and sulfosalicylic acid on D201resin" @default.
- W2375732531 hasPublicationYear "2011" @default.
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