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    Apparatus for platinum group metals recovery from spent catalysts
    1.
    发明授权
    Apparatus for platinum group metals recovery from spent catalysts 有权

    公开(公告)号：US11898220B2

    公开(公告)日：2024-02-13

    申请号：US16591644

    申请日：2019-10-03

    Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.

    Inventor： Igor Lubomirsky ,  Valery Kaplan

    IPC: C22B11/06 ,  C01G55/00 ,  B01J19/08 ,  C22B11/00

    CPC classification number: C22B11/06 ,  B01J19/08 ,  C01G55/005 ,  C22B11/048 ,  Y02P10/20

    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 to a chlorinating treatment in the reaction zone at a predetermined temperature for a predetermined time period by putting the catalyst particulate material in contact with the chlorine containing gas. The method also includes applying an electromagnetic field to the chlorine-containing gas in the reaction zone to provide ionization of chlorine; thereby to cause a chemical reaction between platinum group metals and chlorine ions and provide a volatile platinum group metal-containing chloride product in the reaction zone. Following this, the volatile platinum group metal-containing chloride product is cooled to convert the product into solid phase platinum group metal-containing materials.

    Method for gold recovery and extraction from electronic waste or gold containing minerals, ores and sands
    2.
    发明授权
    Method for gold recovery and extraction from electronic waste or gold containing minerals, ores and sands 有权

    公开(公告)号：US11718893B2

    公开(公告)日：2023-08-08

    申请号：US16759751

    申请日：2018-11-01

    Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.

    Inventor： Igor Lubomirsky ,  Valery Kaplan ,  Nurlan Dosmukhamedov ,  Erzhan Zholdasbay

    IPC: C22B11/06 ,  C22B1/00 ,  C22B11/02

    CPC classification number: C22B11/06 ,  C22B1/005 ,  C22B11/025

    Abstract: A method for recovery of gold from gold-containing materials, such as electronic waste material, minerals and sands is described. The method includes crushing the gold containing material to obtain a particulate material. The particulate material is then preheated in an oxygen-containing gas environment in a preheating zone. The method also includes mixing the oxidized particulate material with a chlorine-containing material and treating the mixture in a reaction zone. The treatment is carried out by heating the mixture to provide thermal decomposition of the chlorine-containing material and produce a chlorine-containing gas mixture, and by applying an electromagnetic field to the chlorine-containing gas mixture to provide ionization of chlorine. A volatile gold-containing chloride product, produced in the reaction zone as a result of a chemical reaction between gold and chlorine ions, is then cooled to convert the volatile gold-containing chloride product into solid phase gold-containing materials.

    Method for platinum group metals recovery from spent catalysts
    5.
    发明授权
    Method for platinum group metals recovery from spent catalysts 有权

    公开(公告)号：US10457999B2

    公开(公告)日：2019-10-29

    申请号：US15318459

    申请日：2015-06-18

    Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.

    Inventor： Igor Lubomirsky ,  Valery Kaplan

    IPC: C22B3/00 ,  B01J19/08 ,  C01G55/00 ,  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 to a chlorinating treatment in the reaction zone at a predetermined temperature for a predetermined time period by putting the catalyst particulate material in contact with the chlorine containing gas. The method also includes applying an electromagnetic field to the chlorine-containing gas in the reaction zone to provide ionization of chlorine; thereby to cause a chemical reaction between platinum group metals and chlorine ions and provide a volatile platinum group metal-containing chloride product in the reaction zone. Following this, the volatile platinum group metal-containing chloride product is cooled to convert the product into solid phase platinum group metal-containing materials.

    Method for platinum group metals recovery from spent catalysts
    6.
    发明授权
    Method for platinum group metals recovery from spent catalysts 有权

    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.

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