The present invention relates to a method for removing interlaminar adhesives and/or inks on laminated plastic material, which comprises the following steps: a) microperforating the laminated plastic material with at least one microperforation per cm.sup.2, b) removing the ink and/or adhesive by adding a washing solution to the microperforated plastic resulting from step a), c) separating the plastic material and the aqueous material.

The invention comprises methods of robotically separating unwanted heteroatom-containing materials from a plastic mixture and catalytically pyrolyzing the resulting mixed plastics to obtain olefins and aromatics. Systems and compositions useful in the catalytic pyrolysis of plastics are also described.

A detaching apparatus that detaches a target object, the detaching apparatus comprising: a plurality of adsorption portions configured to adsorb the target object; a selection unit configured to select a plurality of adsorption portions that are to execute an adsorption operation on the target object, from among the plurality of adsorption portions; an adsorption control unit configured to cause the plurality of adsorption portions selected by the selection unit to execute the adsorption operation; and a rotation control unit configured to execute a rotation operation of the adsorption portions which the adsorption operation was executed.