A new chemical for the separation of the CRT panel glass from its funnel

Abstract

The first step for recycling the CRT bulb is to remove frit seals between the panel and funnel. For this purpose, various kinds of methods have been used. One of those is to use the nitric acid, which is a proven technology and widely used in CRT-making industries. The process, however, has a problem of NOx generation. Such a drawback can be overcome by using a new chemical. This new chemical can remove the frit without NOx generation. This paper describes the dissolution ability of the chemical for lead and zinc oxides and the application to the separation of the CRT panel from its funnel. ？ 2001 Taylor & Francis Group, LLC.