摘要
The multistage stirring,leaching and washing tower(MSLWT)was designed to make it possible to finish leaching and washing of ore in one equipment.The residence time distributions(RTD)of MSLWT were studied.Peclet number,τ,σ^(2) were calculated based on the diffusion model,the results indicate the diffusion model is suitable to MSLWT.The application of MSLWT to the leaching of rare earth ore increases the recovery to above 92%and reduces the washing factor to less than 0.06.
