Title:
SEPARATION METHOD OF METAL
Document Type and Number:
Japanese Patent JP2016060926
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a separation method of metal for separating valuable metals and impurity metals, which can sufficiently separate impurity metals such as iron, and can efficiently collect any valuable metals of cobalt, nickel, manganese and lithium.SOLUTION: A separation method of metal for separating valuable metals and impurity metals including an extraction process for contact mixing a valuable metal-containing solution containing at least one of cobalt, nickel, manganese and lithium as valuable metals and at least iron as impurity metal with a water insoluble organic phase containing a metal extractant including organic phosphinic acid represented by the following general formula (1) under a condition of pH of 1.0 to 4.0 and extracting the impurity metals into the water insoluble organic phase. (1), where Rand Rrepresent each independently an alkyl group having 1 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, an aryl group having 6 to 30 carbon atoms and an aralkyl group having 7 to 30 carbon atoms.SELECTED DRAWING: None
Inventors:
TATSUI HIDEYUKI
Application Number:
JP2014187739A
Publication Date:
April 25, 2016
Filing Date:
September 16, 2014
Export Citation:
Assignee:
SOLVAY NICCA LTD
International Classes:
C22B3/26; C22B7/00; C22B23/00; C22B26/12; C22B47/00
Domestic Patent References:
| JPS6050128A | 1985-03-19 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshinori Shimizu
Yoshinori Shimizu