|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||PbZn 2020: The 9th International Symposium on Lead and Zinc Processing
||Effect of Reducing Agent on Zinc Recovery from Primary Battery Waste in High Temperature Recycling Process
||Burcak Ebin, Martina Petranikova, Britt-Marie Steenari, Christian Ekberg
|On-Site Speaker (Planned)
The consumption of the primary batteries, which are mainly alkaline and zinc-carbon batteries, have been rising due to increasing need to energize small portable electrical and electronic tools. The service life of primary batteries is shorter than the rechargeable batteries, and thus their usages creates high amount of waste. Battery black mass are obtained after removal of the steel shell of the spent primary batteries, and zinc is the main component of it, about 25 – 35 wt%. This research focused on to develop an environmental zinc recycling process from battery waste with reduced CO2 emission. The results show that recovery of the zinc was achieved to 99% by carbothermic reduction, and 99.8% by hydrogen reduction at 950░C. In the process, fine zinc particles were produced with a particle size varying between 200nm and 3.5Ám by rapid condensation following the evaporation of zinc from the treated primary battery black mass.