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《Journal of Anhui Agricultural Sciences》 2008-10
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Study on the Adsorption Properties of L-Proline on Ion Exchange Fiber

LI Xin et al (College of Science,Henan Agricultural University,Zhengzhou,Henan 450002)  
[Objective] The research aimed to provide the experimental foundation and theoretical basis for applying ion exchange fiber(IEF)in the adsorption and separation of L-proline.[Method] L-proline was adsorbed by using the home-made strong acidic IEF.In the static adsorption test and dynamic adsorption test,the adsorption characteristics and influencing factors of L-proline on IEF were studied.[Result] Strong acidic IEF had better adsorption capacity to L-proline.The static absorption of strong acidic IEF to L-proline reached the balance in 200 s and its adsorption rate was obviously higher than that of Resin 732.The dynamic adsorption capacity of strong acidic IEF to L-proline was related with the inlet concentration and flow velocity of L-proline solution.When L-proline solution was at 3.57 g/L,its dynamic adsorption capacity reached 185.68 mg /L.Ammonia could desorb the adsorbed L-proline on exchange column and the regenerated IEF still had better adsorption properties.[Conclusion] The enrichment and separation of L-proline by using strong acidic IEF was favorable for reducing energy consumption and improving efficiency.
【Fund】: 国家高技术研究发展计划项目(2002AA245091);; 河南农业大学博士科研基金(30200212)
【CateGory Index】: Q517-3
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