| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for recovering composite materials including aluminum materials, in which the composite materials including the aluminum materials are recovered by an acidic solution and recycled. <P>SOLUTION: The method for separating plastic films and aluminum foil or paper and aluminum foil comprises an immersing and peeling step of immersing the composite materials including the aluminum materials into a peeling liquid containing nitric acid of 15-68% in concentration, a washing step of removing the peeling liquid remaining on the surfaces of the material by water, and a drying, classifying, and recovering step of drying the respective materials of the composite materials including the aluminum materials and drying the materials. <P>COPYRIGHT: (C)2004,JPO</p> |
