US 11,898,220 B2
Apparatus for platinum group metals recovery from spent catalysts
Igor Lubomirsky, Petach-Tikva (IL); and Valery Kaplan, Rishon LeZion (IL)
Assigned to YEDA RESEARCH AND DEVELOPMENT CO. LTD., Rehovot (IL)
Filed by YEDA RESEARCH AND DEVELOPMENT CO. LTD., Rehovot (IL)
Filed on Oct. 3, 2019, as Appl. No. 16/591,644.
Application 16/591,644 is a division of application No. 15/318,459, granted, now 10,457,999, previously published as PCT/IL2015/050621, filed on Jun. 18, 2015.
Claims priority of provisional application 62/136,762, filed on Mar. 23, 2015.
Claims priority of provisional application 62/014,209, filed on Jun. 19, 2014.
Prior Publication US 2020/0032370 A1, Jan. 30, 2020
Int. Cl. C22B 11/06 (2006.01); C01G 55/00 (2006.01); B01J 19/08 (2006.01); C22B 11/00 (2006.01)
CPC C22B 11/06 (2013.01) [B01J 19/08 (2013.01); C01G 55/005 (2013.01); C22B 11/048 (2013.01); Y02P 10/20 (2015.11)] 12 Claims
OG exemplary drawing
 
1. An apparatus for recovery of platinum group metals from a spent catalyst comprising:
a housing;
a chlorination reactor with a reaction zone;
a catalyst particulate material inlet port located in the housing of the apparatus and configured to deliver catalyst particulate material into the chlorination reactor;
a chlorine-containing gas inlet port located in the housing of the apparatus, connected to the chlorination reactor;
a heater;
an electromagnetic inductor inside the chlorination reactor or connected to the chlorination reactor; and
a platinum group metal-containing vapor outlet port, and one or more corresponding cooling manifolds through which a platinum group metal-containing vapor is released from said reaction zone, wherein the platinum group metal-containing vapor outlet port and the one or more corresponding cooling manifolds are connected to the chlorination reactor;
wherein the catalyst particulate material is fed into said catalyst particulate material inlet port and is treated with chlorine containing gas from said chlorination reactor at a predetermined temperature by said heater, providing a chemical reaction between said chlorine-containing gas and the platinum group metals in the catalyst particulate material to yield a volatile platinum group metal-containing chloride product;
wherein said catalyst particulate material inlet port and said chlorine-containing gas inlet port are configured to direct the catalyst particulate material and the chlorine-containing gas, respectively, into said chlorination reactor;
wherein said heater is in the chlorination reactor and in contact with catalyst particulate material which is fed from the catalyst particulate material inlet port; and
wherein said electromagnetic inductor is configured to apply an electromagnetic field in the range of 50 kHz to 12 GHz to a chlorine-containing gas mixture in said chlorination reactor.