With the advancement of society, the development of the economy, and the improvement of people's living standards, the increasing garbage production is now overloading the planet we live in. The endless public nuisance incidents and the "garbage siege" have already sounded the alarm for us. How to achieve harmlessness, reduction, and resource utilization is a top priority. "Disposing the resources of the place" is a renewed understanding of garbage in recent years. How to deal with used batteries? I hope the following will help you with your used batteries.
How to dispose of used batteries is as follows:
classification. The recovered waste battery is smashed, the zinc shell and the battery bottom iron are stripped, the copper cap and the graphite rod are taken out, and the remaining black matter is a mixture of manganese dioxide and ammonium chloride as a battery core, and the above substances are separately collected and collected. After processing, you can get some useful substances. The graphite rod is washed with water, dried and used as an electrode.
Made of zinc. The peeled zinc shell is washed, placed in a cast iron pot, heated and melted and kept for 2 hours, the upper layer dross is removed, poured out and cooled, and dropped on the iron plate, and zinc particles are obtained after solidification.
Recover copper sheets. After the copper cap is flattened, it is washed with hot water, and then added with a certain amount of 10% sulfuric acid to boil for 30 minutes to remove the surface oxide layer, and then washed and dried to obtain a copper sheet.
Recovery of ammonium chloride. Put the black substance into the tank, add 60-degree warm water and stir for 1 hour, dissolve all the ammonium chloride in water, statically, filter, wash the filter residue twice, collect the mother liquor; in the vacuum distillation of the mother liquor to the surface, a white crystal film appears. The ammonium chloride crystal was cooled and filtered, and the mother liquid was recycled.
Manganese dioxide is recovered. The filtered residue is washed 3 times, filtered, and the filter cake is placed in a pot and evaporated to remove a little carbon and other organic matter, and then stirred in water for 30 minutes, filtered, and the cake is dried at 100-110 degrees. Obtained black manganese dioxide.
6 solidified and buried in waste mine
For example, a factory in France extracts nickel and cadmium, and then uses nickel for steelmaking, and cadmium is reused for battery production. The rest of the waste batteries are generally shipped to specialized toxic and hazardous landfills, but this practice is not only too expensive but also wasteful because there are many useful materials that can be used as raw materials.
The above is the content of how to dispose of used batteries, I hope to help everyone.
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