HEAT TREATMENT METHOD OF WASTE CATHODE MATERIALS AND LITHIUM RECOVERY METHOD USING SAME

A method of heat-treating a waste cathode material to recover lithium carbonate from the waste cathode material, and a lithium carbonate recovery method using the waste cathode material heat treatment method are provided. The method of heat-treating the waste cathode material includes heating an interior of a heat treatment furnace by burning a hydrocarbon fluid in the heat treatment furnace and producing lithium carbonate (LiCO) and residual metal oxide by reacting a waste cathode material in the heat treatment furnace with COgenerated during burning of the hydrocarbon fluid.