METHOD FOR SEPARATING IMPURITIES FROM AN ACIDIC SOLUTION CONTAINING NICKEL AND COBALT AND/OR SCANDIUM

WIPO Patent Application WO/2014/148431

A1

Provided is a method for efficiently separating nickel, cobalt and/or scandium, and impurities from an acidic solution containing impurities such as manganese, iron, zinc, and aluminum. A valuable-metal extracting agent of the present invention is expressed by general formula (1). In the formula, R1 and R2 each represent the same or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents a hydrogen atom or a given group, other than an amino group, that bonds with an α carbon as an amino acid. In general formula (1), the inclusion of a glycine unit, a histidine unit, a lysine unit, an asparagine acid unit, or a normal methylglycine unit is preferred.

GOTO MASAHIRO (JP)
KUBOTA FUKIKO (JP)
BABA YUZO (JP)
OZAKI YOSHITOMO (JP)
HAYATA JIRO (JP)
HIGAKI TATSUYA (JP)
NAGAKURA TOSHIHIKO (JP)
MATSUMOTO SHINYA (JP)

PCT/JP2014/057133

September 25, 2014

March 17, 2014

Click for automatic bibliography generation  

UNIV KYUSHU NAT UNIV CORP (JP)
SUMITOMO METAL MINING CO (JP)

C22B3/26; C22B23/00; C22B59/00

JP2007327085A	2007-12-20
JP2010174366A	2010-08-12
JP2012102062A	2012-05-31
EP0834581A1	1998-04-08
JP2000234130A	2000-08-29
JPH09143589A	1997-06-03
JPH09291320A	1997-11-11

HIROFUMI MORIZONO ET AL.: "Liquid-liquid extraction of transition metal ions with an alkylhistidine extractant", SEPARATION AND PURIFICATION TECHNOLOGY, vol. 80, no. 2, 29 July 2011 (2011-07-29), pages 390 - 395, XP028237907

SHOBAYASHI, Masayuki et al. (JP)
Right wood Masayuki (JP)

View/Download PDF      PDF Help

Previous Patent: WIRE AND COIL

Next Patent: LITHIUM TITANIUM SULFIDE, LITHIUM NIOBIUM SULFIDE, AND LITHIUM TITANIUM NIOBIUM SULFIDE