Introduction to the recycling and processing methods of used batteries

Introduction to the recycling and processing methods of used batteries 1. Classification: The recycled used batteries can be smashed, the zinc shell and the bottom iron of the battery can be stripped, the copper cap and the graphite rod can be taken out, and the remaining black matter is the manganese dioxide and the battery core. After the mixture of ammonium chloride, the above substances are collected and processed separately, we can get some useful substances. The ink stick can be used as an electrode after washing and drying. 2. Zinc pellets: Wash the stripped zinc shell and place it in a cast iron pot. After heating and keeping it for 2 hours, remove the layer of scum on it, pour it out for cooling, and then drop it on the iron plate. , After the solidification, zinc particles can be obtained. 3. Recycling copper flakes: the copper cap can be flattened and then washed with hot water, then add a certain amount of 10% sulfuric acid and boil for 30 minutes to remove the oxide layer on the surface, remove it, wash it, and dry it. Obtain copper flakes. 4. Recover ammonium chloride: put the black substance in the tank, add 60oC warm water and stir for an hour, so that all the ammonium chloride will be dissolved in the water, stand still, filter, and wash the filter residue twice, and collect the mother liquor. 5. Recovery of manganese dioxide: Wash the filtered filter residue 3 times with water, filter, put the filter cake into the pot and evaporate to remove a little carbon and other organic matter, then put it in the water and fully stir for 30 minutes, filter, and then Dry the filtered cake at 100-110oC so that we can get manganese dioxide. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.