Title:
使用済み触媒からの白金族金属回収方法
Document Type and Number:
Japanese Patent JP6523346
Kind Code:
B2
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.
Inventors:
Le Bomilsky, Igor
Kaplan, Valerie
Kaplan, Valerie
Application Number:
JP2016574112A
Publication Date:
May 29, 2019
Filing Date:
June 18, 2015
Export Citation:
Assignee:
Yeda Research and Development Company Limited
International Classes:
C22B11/06; B01J23/42; B01J38/00; B01J38/42; B01J38/48; B09B3/00; B09B5/00; C22B7/00
Domestic Patent References:
| JP3013532A |
Foreign References:
| US5102632 |
Attorney, Agent or Firm:
Patent business corporation Oshima patent office