Lithium carbonate for obtaining method from zinnwaldite

The present invention discloses a method for obtaining lithium carbonate from zinnwaldite, the method comprising calcining and zinnwaldite agent are mixed, then calcined, and then washed with water leaching leachate obtain, after freeze sodium leachate analysis Impurity concentrated sodium carbonate was added to the concentrate to obtain a precipitate of lithium carbonate and potassium, rubidium, cesium solution. Using the method of the present invention may provide improved zinnwaldite concentrate lithium, potassium, rubidium, cesium extraction rate.