A Novel Process Utilizing Subcritical Water to Remove Lead from Wasted Lead Silicate Glass
Authors:
- 28 June 2004
- journal article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 33 (8) , 956-957
Abstract
Lead was removed from lead silicate glass 7.3Na2O–6.4K2O–3.7MgO–5.4CaO–66.4SiO2–7.8PbO–3Al2O3 (mol %), used in color television CRT funnel, utilizing a subcritical hydrothermal treatment at 628 K and 24 MPa followed by acid leaching at 373 K. This process may be used to prevent disposal of lead containing waste glass wares to landfills, reduce environmental risks in future.Keywords
This publication has 6 references indexed in Scilit:
- Orthoclase dissolution kinetics probed by in situ X-ray reflectivity: effects of temperature, pH, and crystal orientationGeochimica et Cosmochimica Acta, 2003
- Recycling of Scrap Cathode Ray TubesEnvironmental Science & Technology, 2001
- Towards greener disposal of waste cathode ray tubes via ultrasonically enhanced lead leachingGreen Chemistry, 2001
- Phase separation in pyrex glass by hydrothermal treatment: evidence from micro-Raman spectroscopyJournal of Non-Crystalline Solids, 2001
- Nucleation and crystal growth in water containing soda–lime–silica glassesJournal of Non-Crystalline Solids, 1999
- Water in glassJournal of Non-Crystalline Solids, 1985