METHOD FOR SEPARATING AND RECOVERING METAL MEMBER FROM BONDED SEAL, AND METHOD FOR PRODUCING BONDED SEAL

摘要

PROBLEM TO BE SOLVED: To provide a method for separating and recovering a metal member by separating and removing a fluorine rubber sealing material from a bonded seal having the metal member and the fluorine rubber material adhering closely to the metal member.

SOLUTION: The method for separating and recovering the metal member includes: exposure of a bonded seal including the metal member and the fluorine rubber sealing material adhering closely to the metal member, to a fluid in a supercritical state or in a subcritical state or to a fluorine-containing solvent; and separation and removal of the fluorine rubber sealing material. Preferably, the fluorine rubber sealing material contains a perfluoro fluorine rubber.

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