公开(公告)号：US20190284660A1

公开(公告)日：2019-09-19

申请号：US16353831

申请日：2019-03-14

Applicant: The Board of Regents for Oklahoma State University

Inventor： Pankaj Sarin ,  David K. Nichols

IPC: C22B3/00 ,  B01J23/96 ,  B01J38/60

Abstract: The disclosed methods are utilized for recovering a high percent of platinum group metals from spent catalytic converters. The methods use an aqua regia bath and ultrasonic agitation to liberate the metals from the carrier material of the washcoat, while leaving the metal supporting structure largely intact.

公开(公告)号：US11225702B2

公开(公告)日：2022-01-18

申请号：US16353831

申请日：2019-03-14

Applicant: THE BOARD OF REGENTS FOR OKLAHOMA STATE UNIVERSITY

Inventor： Pankaj Sarin ,  David K. Nichols

IPC: B01J23/96 ,  C22B11/00 ,  B01J38/60

Abstract: The disclosed methods are utilized for recovering a high percent of platinum group metals from spent catalytic converters. The methods use an aqua regia bath and ultrasonic agitation to liberate the metals from the carrier material of the washcoat, while leaving the metal supporting structure largely intact.