Title:
ルテニウム担持アルミナ廃触媒からのルテニウム回収方法
Document Type and Number:
Japanese Patent JP5891316
Kind Code:
B2
Abstract:
A method for recovering ruthenium from waste catalyst of aluminum oxide loaded with ruthenium comprises the following steps: drying, roasting and cooling the waste catalyst of aluminum oxide loaded with ruthenium; grinding into black powder containing ruthenium oxide; placing the black powder into a fluid bed reactor, introducing hydrogen and performing reduction reaction, thereby obtaining metal Ru; introducing a mixed gas of oxygen and ozone into the fluid bed reactor and oxidizing the waste catalyst, thereby obtaining RuO 4 gas; introducing the RuO 4 gas into sufficient hydrochloric solution to dissolve the RuO 4 gas, thereby obtaining an H 3 RuCl 6 solution; adding excessive oxidant into the H 3 RuCl 6 solution and promoting the H 3 RuCl 6 to be fully oxidized, thereby generating hexachloro (IV) ruthenium acid; adding excessive NH 4 Cl, reacting, filtering and cleaning filter cake, thereby obtaining an ammonium hexachloro (IV) ruthenium solid; and finally, performing hydrogen reduction treatment on the ammonium hexachloro (IV) ruthenium solid, thereby obtaining the metal ruthenium. The method is simple in operation, low in cost, short in recovering period and high in recovery ratio.
Inventors:
Yori Wave
Hu ri
Han Yi-ming
Liu feeling
Song virtue
Hu ri
Han Yi-ming
Liu feeling
Song virtue
Application Number:
JP2014560230A
Publication Date:
March 22, 2016
Filing Date:
March 04, 2013
Export Citation:
Assignee:
Wu Hankai Diversion process technology Art Research Total Institute Co., Ltd.
International Classes:
B01J38/48; B01J23/96; B01J38/02; B01J38/10; B01J38/30; B01J38/60; B01J38/66; C22B5/12; C22B7/00; C22B11/02
Domestic Patent References:
| JP2005272917A | ||||
| JP2009520589A | ||||
| JP9227965A | ||||
| JP2010150569A | ||||
| JP2012513893A |
Foreign References:
| CN102108444A | ||||
| CN101797649A |
Attorney, Agent or Firm:
Takahiro Ozaki