Title:
METHOD FOR REFINING COPPER, CHELATING RESIN, COPPER CHELATING AGENT AND COPPER REFINER
Document Type and Number:
Japanese Patent JP2019173041
Kind Code:
A
Abstract:
To provide: a method for refining copper, capable of reducing the content of nickel being an impurity when separating and refining the copper from the nickel to collect a refined solution including high purity copper; a chelating resin; a copper chelating agent; and a copper refiner.SOLUTION: The method for refining copper comprises: the dissolution step of preparing a dissolved solution obtained by dissolving copper and nickel; the adsorption step of contacting the dissolved solution to the chelating resin to adsorb copper ions and nickel ions on the chelating resin; the cleaning step of passing a low concentration acid solution to discharge a solution including the nickel ions; and the collection step of passing a high concentration acid solution to obtain a solution including the copper ions. The chelating resin carries a chain chelating agent having four coordination groups selected from an amino group or a carboxyl group, and at least one of the four coordination groups is a primary amino group or a secondary amino group.SELECTED DRAWING: Figure 1
Inventors:
IMURA RYOTA
Application Number:
JP2018058804A
Publication Date:
October 10, 2019
Filing Date:
March 26, 2018
Export Citation:
Assignee:
JFE ENG CORP
International Classes:
C22B15/14; B01D15/00; B01J45/00; B01J49/05; B01J49/50; B01J49/60; C07C229/16; C22B3/02; C22B3/06; C22B3/42; C22B23/00
Attorney, Agent or Firm:
Sakai International Patent Office
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