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Kinetics and thermodynamics of purification of coumarin from Melilotus with macroporous resins
Author(s): 
Pages: 1-5
Year: Issue:  9
Journal: Chemical Engineering

Abstract: 通过静态吸附和解吸实验筛选出纯化草木樨香豆素的大孔吸附树脂,确定了HPD300树脂纯化香豆素的吸附动力学模型、等温吸附模型和热力学参数,并通过动态吸附和解吸实验优化其工艺条件.结果表明:HPD300树脂对香豆素的吸附量大、解吸率高、吸附速度快,其吸附动力学可用拟二级动力学方程很好地描述,等温吸附过程可用Langmuir方程较好地拟合,其吸附是一个自发、放热的物理吸附过程,在优化的条件下产物中香豆素...
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