Currently there are no industrial applications for antimony, lead, and tin recovery using bromine compounds. Suitable materials include drosses, powders and other finely grained by-products. In the past, bromine hydrometallurgy has gain validation as a leaching reagent which can be beneficial in the extraction of precious metals due to its lower toxicity than HCl. The project will identify and test bromine leaching agents for recovery of valuable elements such as Sb, Pb, and Sn from industrial by-products. It will focus on leaching optimization and downstream process of the leaching solution and residue. A METSIM model and a TEA will determine the operating costs of bromine compounds. This could provide another source of critical materials such as Sb and Pb. The project will identify and test bromine leaching agents for recovery of valuable elements such as Sb, Pb, and Sn from industrial by-products. It will focus on leaching optimization and downstream process of the leaching solution and residue. A METSIM model and a TEA will determine the operating costs of bromine compounds. This could provide another source of critical materials such as Sb and Pb.