Method for recycling ceramic sintered body

Abstract

According to one embodiment, a method for recycling a ceramic sintered body includes bringing a ceramic sintered body including at least one metal element selected from the group consisting of a rare earth element, Ti, and Mg into contact with an acidic liquid including at least one selected from the group consisting of hydrochloric acid, nitric acid, and sulfuric acid in a pressure atmosphere at a temperature of from 100° C. to 400° C. to obtain a mixture including a main component of the ceramic sintered body and an ion of the at least one metal element present in the acidic liquid, separating the main component of the ceramic sintered body from the mixture and separating the ion of the at least one metal element from the acidic liquid.

Dependencies are inferred from the claim text.