Kinetics and model building of leaching of water-soluble compounds of Tilia sapwood

摘要

The kinetics of the leaching of water-soluble compounds of Tilia sapwood was investigated.A batch leaching model,based on the assumption of a second-order mechanism for the leaching,was developed to predict the rate constant of leaching,the saturated leaching capacity,and the initial leaching rate with various leaching temperatures.The rate constant is a function of the temperature,and the leaching of water-soluble compounds of Tilia sapwood is an endothermic process.In addition,the activation energy of leaching was also determined based on the second-order rate constants of the leaching.