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2011-Sustainable Industrial Processing Summit
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| Editors: | Florian K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2012 |
| Pages: | 828 pages |
| ISBN: | 978-0-9879917-0-6 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
Mathematical Simulation Of The Copper Drossing In Lead Bath With Sulphur Injection
VÃctor Hugo Gutiérrez Pérez1; Marissa Vargas RamÃrez2; Alejandro Cruz-Ramirez3;1ESIQIE-IPN, D.F., Mexico; 2UAEH, Pachuca, Mexico; 3ESIQIE-IPN, D.F, Mexico;
Type of Paper: Regular
Id Paper: 345
Topic: 4
Abstract:
Lead is an engineering material used mainly in the manufacturing of lead-acid batteries for the automotive industry. Lead is a non-ferrous metal susceptible to recycling due to its high corrosion resistance. Lead recovery from exhausted batteries is carried out by the pyrometallurgical route. This work is focused in the copper drossing process. Lead refining process is carried out industrially with the addition of the reagents (S) on the liquid surface and further stirring of the bath with a propeller; this procedure is very inefficient and afterward it was optimized by injecting the powder reagent through a lance into the lead bath, therefore the chemical reactions and the kinetics of the process were optimized. In this work a mathematical simulation was carried out on the copper drossing process with the software COMSOL 3.4. An hydrodynamic study of the injection process of the lance-kettle system was carried out. A velocity profile was obtained according with the injection rate of the particles. The residence and mixing times of the process were obtained, the best conditions for the copper drossing process is injection rate of 3.31 m/s at 380°C.The kinetics for the copper drossing was mathematically simulated with the determination of the copper concentration profiles. The modeling results were validated with experimental results obtaining good agreement.