Picture tube disposal process - involves comminuting and then washing to remove phosphor coating

摘要

In the disposal of picture tubes, the glass and pt. the metallic and any plastics components are granulated or crushed and then washed together in a washing reactor with a wash liq. which at least partially dissolves the glass coating. ADVANTAGE - The granules rub together during the washing operation to abrade the phosphor coating and promote the action of the wash liq., so that water or a mild chemical agent can be used as the wash liq.