Do you know waste lead-acid battery recycling process? Lead-acid batteries are relatively large in size and contain toxic lead, making them one of the first types of batteries to be recycled. As a result, their recycling processes are well-established and continue to evolve.
Currently, there are three main process flows for the resource recovery of spent lead-acid batteries worldwide
Waste Lead Acid Battery Recycling Process
1. Direct Smelting Process
Spent lead-acid batteries undergo simple preprocessing, such as removing the casing and draining the acid. The remaining materials are then subjected to a combined smelting process, resulting in a lead-antimony alloy.
2. Separate Smelting Process
Spent lead-acid batteries are first crushed and separated into metallic parts and lead paste. The metallic parts and lead paste are then smelted separately. This process yields a lead-antimony alloy from the metallic parts and refined lead from the lead paste.
3. Desulfurization and Separate Smelting Process
Spent lead-acid batteries are crushed and separated into metallic parts and lead paste. The lead paste undergoes a desulfurization and conversion process. The metallic parts and the treated lead paste are then smelted separately. This process results in a lead-antimony alloy from the metallic parts and soft lead from the treated lead paste.
These processes ensure that the valuable materials in spent lead-acid batteries are recovered efficiently, reducing environmental impact and promoting sustainable resource management.
