How to extract lead from waste lead-acid batteries

How to extract lead from waste lead-acid batteries is very simple. Remove the battery, clean the plastic shell, and put the removed lead plate into the melting furnace for melting. The auxiliary materials needed are coke and iron filings, and the furnace type is reverberatory furnace or shaft furnace. Raw materials are put into the furnace in proportion, and the temperature in the furnace should be kept above 1400 degrees Celsius, so that the ideal reduction effect can be achieved, and the blast volume should be small, so that a large amount of carbon monoxide will be generated in the furnace due to lack of oxygen, and carbon monoxide can react with lead oxide to generate carbon dioxide and lead, and lead is made in this way. At the same time of smelting, it will produce a lot of lead smoke and lead dust. These lead-containing smoke will be cooled and filtered in the cloth bag, and the lead inside will be recovered, not only because of the need of environmental protection, but also because of the high lead content.

In addition, the cooling of flue gas will produce a lot of wastewater, which contains a small amount of lead and dilute sulfuric acid. This water is lead-containing sewage and must be treated before it can be discharged.