Method for separating and recycling aluminum plastic (paper) composite packaging material - comprises using an acid solution containing nitric acid to soak an aluminum plastic (paper) composite packaging material; etc.

摘要

A method for separating and recycling an aluminum plastic (paper) composite packaging material mainly comprises using an acid solution containing nitric acid to soak an aluminum plastic (paper) composite packaging material; performing a dissolution erosion on the aluminum oxide layer at the joint of the aluminum plastic (paper) composite packaging material in order to separate the plastic material layer or the paper layer with the aluminum layer in the aluminum plastic (paper) composite packaging material, thereby separately recovering the aluminum foil, plastic or paper, etc.