Title:
金属抽出剤、金属抽出方法、パラジウム分離方法、レニウム分離方法、ロジウム分離方法及びイリジウム分離方法
Document Type and Number:
Japanese Patent JP5676797
Kind Code:
B2
Abstract:
The present invention extracts precious metals from an acidic solution containing precious metals in an early and highly efficient manner. Provided is an extraction agent for precious metals that is represented by the general formula below. In the formula, R1 and R2 each represent the same alkyl group or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents a hydrogen atom or a discretionary group that is not an amino group and that bonds to α carbon as an amino acid. By subjecting an acidic solution containing precious metals to solvent extraction using the extraction agent for precious metals, a plurality of precious metals can be recovered all at once from a solution containing a large amount of various impurities.
Inventors:
後藤 雅宏
久保田 富生子
馬場 雄三
久保田 富生子
馬場 雄三
Application Number:
JP2014079153A
Publication Date:
February 25, 2015
Filing Date:
April 08, 2014
Export Citation:
Assignee:
国立大学法人九州大学
住友金属鉱山株式会社
住友金属鉱山株式会社
International Classes:
C22B11/00; C22B3/26; C22B61/00
Attorney, Agent or Firm:
Right wood Masayuki
Wood Kazuyoshi
Wood Kazuyoshi