SYSTEMS AND METHODS FOR ISOLATING A PARTICULATE PRODUCT WHEN RECYCLING LEAD FROM SPENT LEAD-ACID BATTERIES

摘要

The present disclosure relates to systems and methods by which lead from spent lead-acid batteries may be extracted, purified, and used in the construction of new lead-acid batteries. A method (10) comprises the step of: (14) forming a first mixture in a first vessel, wherein the first mixture includes a lead-bearing material and a carboxylate source, which (16) react to precipitate lead salt particles; (18) separating a portion of the first mixture from a remainder of the first mixture, wherein the portion includes lead salt particles having specific densities below a specific density threshold value and/or having particle sizes below a particle size threshold value and forming a second mixture in a second vessel, wherein the second mixture includes the lead salt particles from the separated portion of the first mixture; (22) separating the lead salt particles of the second mixture from a liquid component of the second mixture. The second vessel might be configured to (20) enlarge the received lead salt particles by growing and/or agglomerating said particles in a growth mixture.