Abstract
Crystal glass has many uses such as chandeliers and vases. Crystal glass contains lead oxide with a percentage varied from 8-30%. Some of such glass is wasted during preparation of crystal products. This waste is considered hazardous due to its content from leachable lead compounds. The aim of this work is to recover lead metal from solid waste generated from polishing and grinding step in crystal glass manufacture. Samples were collected and fused with sodium carbonate at 800-1000 °C for different periods up to 5 hours. Results revealed that heating decomposed lead compounds present in the waste to lead metal. 80 Wt. % of lead metal was recovered at activation energy ∆E= 45.2 k j/mol.
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