SYNERGISTIC AND ANTAGONISTIC EFFECTS OF Zn(Ⅱ) EXTRACTION WITHHEH/EHP AND PRIMARY AMINE N_(1923)

Acta Metall Sin

1991, Vol. 27

Issue (2): 83-88 DOI:

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SYNERGISTIC AND ANTAGONISTIC EFFECTS OF Zn(Ⅱ) EXTRACTION WITHHEH/EHP AND PRIMARY AMINE N_(1923)

HAN Shumin;MA Genxiang;LI Deqian Changchun Institute of Applied Chemistry; Academia Sinica

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HAN Shumin;MA Genxiang;LI Deqian Changchun Institute of Applied Chemistry; Academia Sinica. SYNERGISTIC AND ANTAGONISTIC EFFECTS OF Zn(Ⅱ) EXTRACTION WITHHEH/EHP AND PRIMARY AMINE N_(1923). Acta Metall Sin, 1991, 27(2): 83-88.

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Abstract The extraction of Zn(Ⅱ) from hydrochloride medium with 2-ethylhe-xylphosphonic acid mono-2-ethylhexyl ester (HRH/EHP, HA) and hydrochloridesalt of primary amine N_(1923) (RNH_3Cl) in n-heptane has been investigated. A syn-ergistic effect and antagonistic effect were found to be present in the system. ltwas ascertained that the interaction between HA and RNH_3Cl during extraction,HA_(0)+RNH_3Cl_(0)?RNH_3A_(0)+H~(+)+Cl~(-), seriously affected the extraction of Zn(Ⅱ)and that the synergistic or antogonistic extraction of Zn(Ⅱ) could be obtained inthe presence of excess RNH_3Cl over HA or excess HA over RNH_3Cl.

Key words: HEH/EHP primary amine Zn(Ⅱ) synergistic extraction antagonistic effect

Received: 18 February 1991

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[2]	MA Genxiang;LI Deqian Changchun Institute of Applied Chemistry; Academia Sinica. SYNERGISTIC EXTRACTION OF Cd(II) WITH PRIMARY AMINE N-1923 AND NEUTRAL ORGANOPHOSPHORUS REAGENTS[J]. 金属学报, 1989, 25(1): 104-110.

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