The invention discloses a method for leaching
copper out of lead matte. The method for leaching the
copper out of the lead matte includes the steps that
sulfuric acid is added into the lead matter, a
sizing agent is obtained, and steam is introduced into the
sizing agent to make the temperature of the
sizing agent rise; an adding agent is added into the sizing agent, a slurrying material is obtained, it is stopped to introduce steam into the slurrying material,
oxygen is introduced into the slurrying material to perform oxidizing leaching till the temperature of the slurrying material is not risen any more, a
reaction product sizing agent is obtained and is filtered, and leaching residues and leaching liquid containing
copper are obtained. According to the method for leaching the copper out of the lead matte, the lead matter serves as a
raw material, the reaction condition is accurately controlled by means of
steam heating, and therefore the leaching-out rate of the copper is increased. Thus, the method for leaching the copper out of the lead matte is high in
raw material adaptability, and simple in procedure and operation, the
copper leaching-out rate is high,
pollution to the
atmosphere is small, the recycling rate of the copper in the lead matter can be increased, and therefore waste of copper resources can be avoided.