公开(公告)号：US20220275527A1

公开(公告)日：2022-09-01

申请号：US17631844

申请日：2020-07-28

Applicant: Aqua Metals Inc.

Inventor： Samaresh Mohanta ,  Joshua Reill ,  Benjamin Sol Taecker ,  Jeffery Hoke ,  Brian James Dougherty ,  Jiaqi Liao

IPC: C25C1/18 ,  C25C7/02

Abstract: Valuable metals, and especially copper and silver, are recovered from a lead containing electrolyte in a process in which the electrolyte is fed into an electrochemical polishing reactor that has a high-surface area cathode at which the electrode potential is controlled to so preferentially reduce copper and silver and to form a pre-treated lead-enriched electrolyte that can then be subjected electrochemical lead recovery.