Sorption recovery of copper (II) and zinc (II) from chloride aqueous solutions

Journal of the Serbian Chemical Society

卷:79

Kononov Yury S.¹  Kuznetsova Marina A.²  Mel’nikov Alexey M.²  Kononova Olga N.²  Karplyakova Nataliya S.² 

[1] Institute of Chemistry and Chemical Technology, Siberian Department of the Russian Academy of Science, Krasnoyarsk, Russian Federation;

[2] Institute of Non-Ferrous Metals and Material Science, Siberian Federal University, Krasnoyarsk, Russian;

关键词: anion exchange;    copper;    zinc;    anion exchangers;    hydrochloric acidic solutions;   

DOI  :  10.2298/JSC130911033K

来源: DOAJ

【 摘 要 】

The present investigation is devoted to simultaneous sorption recovery of copper (II) and zinc (II) ions on some commercial anion exchangers with different physical-chemical properties. The initial concentrations of zinc and copper were 1-3 mmol L-1 and the recovery was carried out in 0.01 M and 2 M hydrochloric acid solutions. It was shown that the investigated anion exchangers possess good sorption and kinetic properties. After the recovery of copper and zinc from strong acidic solutions, their selective elution was carried out by means of 2 M hydrochloric acid solution (zinc recovery) and 2 M ammonia solution (copper recovery). In weak acidic solutions, copper and zinc were separated during sorption, as zinc sorption did not proceed in this case. The subsequent copper (II) elution was carried out by 2 M ammonia solution. The anion exchangers Purolite S985, Purolite A500 and AM-2B can be recommended for zinc and copper recovery from acidic industrial solutions and waste water.

【 授权许可】

Unknown