Method for leaching chalcopyrite

The invention provides a chalcopyrite leaching method, which belongs to the technical field of hydrometallurgy, and comprises the following steps: (1) mixing chalcopyrite with alkali, and smelting to obtain pretreated chalcopyrite; and (2) the pretreated chalcopyrite obtained in the step (1) is mixed with an acid solution, a catalyst and an oxidizing agent for oxidation leaching, and copper-containing leachate is obtained. According to the method, firstly, the chalcopyrite is smelted with alkali, so that the lattice structure of the chalcopyrite is changed, copper is leached more easily, and the leaching temperature of subsequent leaching is reduced; a catalyst and an oxidizing agent are added in the acid leaching process, the leaching temperature is further reduced, the leaching time is shortened, and the leaching rate of copper is increased. The result of the embodiment shows that according to the leaching method, the leaching temperature is 75 DEG C, the leaching time is 2 h, and the leaching rate of coppe