Title:
HYDROPHOBIC ANION EXCHANGE FIBER, AND REFINING METHOD FOR NICKEL SOLUTION USING THE FIBER
Document Type and Number:
Japanese Patent JP2020082048
Kind Code:
A
Abstract:
To provide a process using no organic solvent for refining nickel existing in a high-concentration hydrochloric acid solution in order to improve safety of an operator using the organic solvent and to reduce an environmental load although the transition metals except nickel has been separated by the liquid-liquid extraction method using the above solvent.SOLUTION: Nickel and transition metals except nickel existing in a high-concentration hydrochloric acid solution have the chemical forms of cation in nickel, and chloro complex anion in transition metals except nickel, respectively. In order to adsorb the chloro complex of transition metals except nickel in the high-concentration hydrochloric acid solution, a hydrophobic anion exchange fiber having a long-chain alkyl tertiary amine in a side chain is provided. The adsorbed metals are eluted by water to be reused.SELECTED DRAWING: None
Inventors:
SUGO TAKANOBU
SUZUKI KOICHI
FUJIWARA KUNIO
SAITO KYOICHI
IWASAKI MASAKI
ASAKURA SATOSHI
SUZUKI KOICHI
FUJIWARA KUNIO
SAITO KYOICHI
IWASAKI MASAKI
ASAKURA SATOSHI
Application Number:
JP2018229466A
Publication Date:
June 04, 2020
Filing Date:
November 20, 2018
Export Citation:
Assignee:
KANKYO JOKA KENKYUSHO KK
ISE CHEMICALS CORP
UNIV CHIBA NAT UNIV CORP
ISE CHEMICALS CORP
UNIV CHIBA NAT UNIV CORP
International Classes:
B01J41/07; B01D15/00; B01D15/04; B01J20/26; B01J20/34; B01J41/13; B01J41/14; B01J47/127; B01J49/57; C22B3/10; C22B3/42; C22B23/06