公开(公告)号：US20220177999A1

公开(公告)日：2022-06-09

申请号：US17436300

申请日：2019-08-20

Applicant: TECHEMET, LP

Inventor： Edward W. Albrecht ,  Steven D McCullough

IPC: C22B9/10 ,  C22B7/04 ,  C22B9/05 ,  C22B9/16 ,  C22B11/02 ,  C22B1/00 ,  C21C5/36 ,  C21C5/44 ,  C21C5/46 ,  C22B11/00 ,  C22B7/00 ,  C22C1/02

Abstract: PGM converting process and jacketed rotary converter. The process can include low- or no-flux converting; partial pre-oxidation of PGM collector alloy; using a refractory protectant in the converter; magnetic separation of slag; recycling part of the slag to the converter; smelting catalyst material in a primary furnace to produce the collector alloy; and/or smelting the converter slag in a secondary furnace with slag from the primary furnace. The converter can include an inclined converter pot mounted for rotation; a refractory lining; an opening in a top of the pot to introduce converter feed; a lance for injecting oxygen-containing gas into the alloy pool; a heat transfer jacket adjacent the refractory lining; and a coolant system to circulate a heat transfer medium through the jacket to remove heat from the alloy pool in thermal communication with the refractory lining.