Title:
How to carry out concentration recovery of platinum which is the precious metals, and the palladium efficiently with a solvent extraction method
Document Type and Number:
Japanese Patent JP6072375
Kind Code:
B2
Abstract:
The present invention relates to a process for efficiently enriching and recovering noble metals of platinum and palladium based on solvent extraction, wherein isoamyl alcohol is used as extracting agent and 2-methoxyphenyl thiourea is used as extraction-assisted complexing agent. 2-methoxy-phenyl thiourea is added to aqueous phase to react with platinum and palladium, and isoamyl alcohol is used as extracting agent to extract the organic phase, thus realizing the purpose of separating and extracting noble metals from base metals while enriching noble metals of platinum and palladium. The present invention, which can not only realize the separation of noble metals and base metals, but also enhance the enrichment and recovery ratios of noble metals of platinum and palladium, with low cost reagents, small influence on the environment and simple technical process, thus is a new and efficient extraction and enrichment system for noble metals.
Inventors:
Shishaoli
Niez Oren
Sun Shao Kai
Marley Wen
Niez Oren
Sun Shao Kai
Marley Wen
Application Number:
JP2016539401A
Publication Date:
February 01, 2017
Filing Date:
June 26, 2014
Export Citation:
Assignee:
Beijing Institute of Technology
International Classes:
C22B11/00; C22B3/26
Foreign References:
| CN103805784A |
Attorney, Agent or Firm:
Mikio Yoshimiya
Toshihiro Kobayashi
Toshihiro Kobayashi