Title:
塩酸酸性Ｓｎ含有貴金属触媒回収液からの貴金属の回収方法
Document Type and Number:
Japanese Patent JP6735702
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for recovering a noble metal capable of effectively recovering the noble metal from a solution containing a hydrochloric acid acidic Sn-containing noble metal catalyst recovery liquid by a simple method.SOLUTION: There is used a method for recovering a noble metal by an active carbon adsorption of the noble metal from a hydrochloric acid acidic Sn-containing noble metal catalyst recovery liquid, which has an acid concentration adjustment process for adjusting acid concentration of a solution containing the recovery liquid to 0.8 to 5 mol/L to obtain an adjustment liquid of which acid concentration is adjusted, a passing process for passing the adjustment liquid through an active carbon layer containing active carbon with pore volume of pore radius of 1 nm or less of 45 to 500 mm/g, and a process for separating the active carbon layer from the adjustment liquid passed through the active carbon.SELECTED DRAWING: Figure 1
Inventors:
Kei Sabae
Yusuke Kaneko
Tetsuya Hanamoto
Yusuke Kaneko
Tetsuya Hanamoto
Application Number:
JP2017077375A
Publication Date:
August 05, 2020
Filing Date:
April 10, 2017
Export Citation:
Assignee:
Tanaka Kikinzoku Kogyo Co., Ltd.
KURARAY CO.,LTD.
KURARAY CO.,LTD.
International Classes:
C22B11/00; B01J20/20; B01J20/28; C02F1/28; C22B3/24; C22B7/00
Domestic Patent References:
| JP6236311B2 | ||||
| JP111640A | ||||
| JP2003147448A | ||||
| JP2000256999A |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Masashi Haruji
Masataka Otani
Masashi Haruji