Mechanism Research of Metal Lead Recovery from Waste CRT Glass
HU Biao
HUI Wenlong
Abstract：Lead content of waste CRT glass are high, CRT leaded glass belongs to hazardous waste, and the separation and extraction of lead in CRT glass has been the focus of researchers. In the process of high temperature reducing, the metal lead was recovered and the molten frit is made out at the same time. Water glass is prepared by hydrolyzing the glass. When temperature was 1 200 ℃, holding time for 2 h, the recovery rate of metallic lead can reach more than 90％, and the lead of residues contain only about 1％. In this paper, it describes metal recycling process of lead in CRT leaded glass, technology and method in details, and analysed its mechanism from the molecular level, which played an important role for reduction, harmless and recycling of the waste CRT leaded glass. Recycling the lead in waste CRT glass can effectively avoid the harm of hazardous waste on the environment and human body, not only has significant environmental value, but also has remarkable economic benefits. This study provides a new train of thought and theoretical basis for the recycling of electronic waste.
Keywords：waste CRT glasshigh temperature meltingleadmechanism
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 92-95 )