公开(公告)号：US20240200922A1

公开(公告)日：2024-06-20

申请号：US18287056

申请日：2022-04-20

Applicant: UNIVERSITY OF MASSACHUSETTS

Inventor： Chen-Lu YANG ,  Edward W. SPRING

IPC: F42B33/06 ,  C25C7/00 ,  C25C7/08

CPC classification number: F42B33/06 ,  C25C7/007 ,  C25C7/08

Abstract: An apparatus for electrochemical ammunition disposal and material recovery, the apparatus comprises: a vessel for holding an acidic aqueous solution: an anode at least partially immersed in the acidic aqueous solution: physically separated from the anode, a movable cathode at least partially immersed in the aqueous solution, wherein the movable cathode in a first position has a first surface which is not-immersed in the aqueous solution: a cleaning implement to remove material on the first surface of the cathode; and a power supply for applying a voltage between the anode and the cathode.

公开(公告)号：US20190151838A1

公开(公告)日：2019-05-23

申请号：US16193034

申请日：2018-11-16

Applicant: University of Massachusetts

Inventor： Tabish NAWAZ ,  Sukalyan SENGUPTA ,  Chen-Lu YANG

IPC: B01J49/06 ,  B01J49/53 ,  B01J49/60 ,  B01J39/04 ,  B01J39/20 ,  C02F1/42

CPC classification number: B01J49/06 ,  B01J39/04 ,  B01J39/20 ,  B01J49/53 ,  B01J49/60 ,  C02F1/42 ,  C02F1/461 ,  C02F1/66 ,  C02F2001/425 ,  C02F2001/5218 ,  C02F2101/20 ,  C02F2103/002 ,  C02F2303/16

Abstract: Silver is recovered as Ag0 nanoparticles from the spent solution obtained from the regeneration of an Ag-loaded ion exchange resin using electrolysis. The reclaimed regenerant solution is recycled and reused in a closed-loop scheme over multiple cycles. The recovered Ag0 nanoparticles are monodisperse, spherical in shape, and have a mean diameter of about 6 nm.