Method for extracting metal aluminum from waste aluminum plastic film

The invention discloses a method for extracting metallic aluminum from waste aluminum-plastic films, which is characterized in that cleaned and dried waste aluminum-plastic films are cut to pieces and then put into a heating container, and colophony serving as the reduction agent is covered on the aluminum-plastic films; the heating container is heated for one hour under the set temperature and then the heating stops, and the metallic aluminum is obtained after the mixture in the container is cooled to the room temperature. The invention extracts metallic aluminum from the waste aluminum-plastic films through a heating method, and has great significance in resource saving, energy consumption, environmental pollution and the like compared with the production of the primary aluminum, 95 percent of energy is saved when one ton of the secondary metallic aluminum which is obtained by the heating method is produced, at the same time, 10.05 tons of water is saved, and 11 tons of solid material ...