METHOD FOR REMOVING A PARTICULATE CONTAMINANT MATERIAL FROM A PARTICULATE MIXED LITHIUM METAL PHOSPHATE MATERIAL

摘要

The present invention relates to a method for removing particulate contaminants from a particulate mixed lithium metal phosphate material comprising the steps of: a) mixing a particulate mixed lithium metal phosphate material comprising particulate contaminants and fine particulate mixed lithium metal phosphates and having a mass x * m B) supplying the particulate mixed lithium metal phosphate material with a fluidizing stage containing a particulate mixed lithium metal phosphate material having a mass of m and fluidizing the liquid phase in a fluidization stage, c) mixing the fluidized particulate mixed lithium metal phosphate D) feeding the material to a shifting stage and passing the shifting stage; d) after the amount of 10 to 100 times the mass m has been fed to the fluidization stage, the particulate mixing of the lithium metal phosphate Stopping the supply of the material, e) Fluidizing and shifting the material present in the fluidization stage after the feed is stopped until the mass of the mass is between 10% and 100% of the mass m, and f) removing the remaining material from the fluidization stage , And repeating steps b) to f) until the total mass x * m is processed.