Title:
貴金属回収方法および貴金属回収剤
Document Type and Number:
Japanese Patent JP6895177
Kind Code:
B2
Abstract:
A method for recovering a noble metal from a mixture that contains the noble metal with use of a noble metal recovering agent which contains at least one amine compound selected from among aromatic primary amine compounds and aliphatic primary amine compounds. In this method for recovering a noble metal, the noble metal recovering agent and the mixture are added into a hydrochloric acid that has a concentration of from 1.0 mol/L to 9.0 mol/L (inclusive), and the noble metal recovering agent is caused to adsorb the noble metal. In this connection, the aromatic primary amine compounds are aniline, 3-phenoxy aniline, 4-phenoxy aniline and 4-alkyl anilines having an alkyl group with 1-8 carbon atoms; and the aliphatic primary amine compounds are linear alkyl monoamines having 6 to 18 carbon atoms (inclusive), 2-ethylhexyl amine and benzyl amine. By this method, a noble metal is efficiently recovered at low cost.
Inventors:
Kazuya Matsumoto
Mitsutoshi Terasakai
Sumito Yamakawa
Mitsutoshi Terasakai
Sumito Yamakawa
Application Number:
JP2018508013A
Publication Date:
June 30, 2021
Filing Date:
March 27, 2017
Export Citation:
Assignee:
Akita University
International Classes:
B01D15/00; C22B11/00; C22B3/28
Domestic Patent References:
| JP2005194546A | ||||
| JP61053117A | ||||
| JP2016013500A |
Other References:
阿部 美保子,矢沢 彬,アミンによる溶媒抽出の湿式製錬への応用に関する二,三の実験,東北大學選鑛製錬研究所彙報,1964年,第9巻第1号,P.59-64,ISSN:0040876X
Attorney, Agent or Firm:
Noriyuki Yamamoto