▎ 摘　　要

NOVELTY - The utility model claims an acid leaching device for preparing graphene, comprising an acid leaching tank; a sealing tank cover and an air outlet cylinder; the acid leaching tank is fixed with a heating plate through a bolt; the heating plate is fixed with an electric heating wire through a bolt; the top of the acid leaching tank is installed with a sealing tank cover through a bearing; the top of the sealing tank cover is installed with a speed reducing motor through a mounting frame; one end of the top of the sealing tank cover is connected with an adjusting valve through a pipeline; the top of the adjusting valve is connected with an air outlet cylinder through a screw thread groove; the inner part of the air outlet cylinder is fixed with a first filter block through a clamping groove. The utility model can stir the graphene in acid leaching, can be used for heating the acid leaching agent such as hydrochloric acid and sulphuric acid, effectively improving acid leaching efficiency, and it is suitable for being widely popularized and used.