公开(公告)号：US10514242B1

公开(公告)日：2019-12-24

申请号：US15293717

申请日：2016-10-14

Applicant: The University of Massachusetts

Inventor： Chen-Lu Yang

IPC: C25C1/12 ,  C25C1/16 ,  F42B33/06 ,  C25C7/00

Abstract: In a method for electrochemical ammunition disposal and material recovery, ammunition cartridges are placed in an acidic aqueous solution that is in contact with a cathode and an anode. The ammunition cartridges have a casing that includes an alloy of copper and zinc. The ammunition cartridges are agitated in the acidic aqueous solution as a voltage is applied between the anode and the cathode. The applied voltage is effective to oxidize and dissolve zinc from the copper-zinc alloy. Copper metal derived from the alloy can be recovered as a solid, and zinc ion derived from the alloy can be recovered as a solution.

公开(公告)号：US11150067B1

公开(公告)日：2021-10-19

申请号：US16688163

申请日：2019-11-19

Applicant: The University of Massachusetts

Inventor： Chen-Lu Yang

IPC: F42B33/06 ,  C25C7/00 ,  C25C1/12 ,  C25C5/02 ,  C25C7/02

Abstract: In a method for electrochemical ammunition disposal and material recovery, ammunition cartridges are placed in an acidic aqueous solution that is in contact with a cathode and an anode. The ammunition cartridges have a casing that includes an alloy of copper and zinc. The ammunition cartridges are agitated in the acidic aqueous solution as a voltage is applied between the anode and the cathode. The applied voltage is effective to oxidize and dissolve zinc from the copper-zinc alloy. Copper metal derived from the alloy can be recovered as a solid, and zinc ion derived from the alloy can be recovered as a solution.