Title: Adsorption and Separation Properties of Mono-6-deoxy-6-(p-tolysulfonyl)-β-cyclodextrin on the Macroporous Resins
Abstract: Seventeen resins were selected to compare their performances in adsorbing and desorbing monosubstituent in the mixture.Experimental results showed that HZ-841 resin possessed higher selectivity and desorption capacity.The adsorption characteristic of monosubstituent on HZ-841 resin was determined.The adsorption isotherms,kinetic curves,breakthrough curves and elution curves were determined.The adsorption(isotherms) were Langmuir type.The adsorption kinetic curve could be preferably described by the second-order Lagergren equation,and the adsorption equilibrium was achieved in about 5 h.On a column of Φ 16 mm×400 mm,the breakthrough volume of CD was 200 mL when the mixture concentration was 4.8 g/L,the flow rate was 2.5 mL/min,while that of monosubstituent was 1 130 mL.The adsorbate was completely eluted with 700 mL of hot(90 ℃) water,and the desorption rates were 98.1% and 94.9% for β-cyclodextrin and monosubstituent,respectively.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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