Lead Electrodeposition from Triethylenet

Lead can be efficiently electrodeposited from a number of common leaching agents such as mineral acids, carboxylic acids, and bases (hydroxides and ammonia). This paper reports the possibility to deposit lead from a triethylenetetramine solution, which is also a powerful extracting agent for lead sulfate. The high affinity of triethylenetetramine towards lead sulfate molecules makes it a promising candidate for lead recovery from various solid materials, including industrial secondary resources, sewages, and wastes. A popular methodology that can be found in the literature to recover metal from amine is based on purging a solution with carbon dioxide, resulting in lead carbonate precipitation. Here, the direct electrodeposition method using a triethylenetetramine solution is explored, showcasing its efficiency and potential for improving lead recovery processes. Results indicate that this method not only facilitates the recovery of lead but also highlights the versatility of triethylenetetramine as a solution for metal deposition, thus providing a sustainable alternative to conventional techniques.