公开(公告)号：US11473168B2

公开(公告)日：2022-10-18

申请号：US16345739

申请日：2017-10-30

Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.

Inventor： Igor Lubomirsky ,  Valery Kaplan ,  Ilya Bronshtein

IPC: C22B11/02 ,  C22B11/06

Abstract: A method for recovery of platinum group metals from a spent catalyst is described. The method includes crushing the spent catalyst to obtain a catalyst particulate material including particles having a predetermined grain size. The method includes subjecting the catalyst particulate material in the reaction zone at a predetermined temperature for a predetermined time period in contact with solid chlorine-containing material and solid silicon-containing material to obtain volatile platinum group metal-containing chloride product, and cooling to convert the product into solid phase platinum group metal-containing materials.