Volume 33, Issue 9 e5082
FULL PAPER

Mechanism of nickel extraction from sulfuric acid medium by synthesized α-aminophosphonate derivative

Dongmei He

Dongmei He

School of Metallurgy and Environment, Central South University, Changsha, 410083 China

Laboratory of Metallurgical Separation Science and Engineering of Central South University, Changsha, 410083 China

Search for more papers by this author
Li Zeng

Li Zeng

School of Metallurgy and Environment, Central South University, Changsha, 410083 China

Laboratory of Metallurgical Separation Science and Engineering of Central South University, Changsha, 410083 China

Search for more papers by this author
Guiqing Zhang

Guiqing Zhang

School of Metallurgy and Environment, Central South University, Changsha, 410083 China

Laboratory of Metallurgical Separation Science and Engineering of Central South University, Changsha, 410083 China

Search for more papers by this author
Qinggang Li

Qinggang Li

School of Metallurgy and Environment, Central South University, Changsha, 410083 China

Laboratory of Metallurgical Separation Science and Engineering of Central South University, Changsha, 410083 China

Search for more papers by this author
Wenjuan Guan

Wenjuan Guan

School of Metallurgy and Environment, Central South University, Changsha, 410083 China

Laboratory of Metallurgical Separation Science and Engineering of Central South University, Changsha, 410083 China

Search for more papers by this author
Zuoying Cao

Corresponding Author

Zuoying Cao

School of Metallurgy and Environment, Central South University, Changsha, 410083 China

Laboratory of Metallurgical Separation Science and Engineering of Central South University, Changsha, 410083 China

Correspondence

Zuoying Cao and Shengxi Wu, School of Metallurgy and Environment, Central South University, Changsha 410083, China.

Email: [email protected]; [email protected]

Search for more papers by this author
Shengxi Wu

Corresponding Author

Shengxi Wu

School of Metallurgy and Environment, Central South University, Changsha, 410083 China

Laboratory of Metallurgical Separation Science and Engineering of Central South University, Changsha, 410083 China

Correspondence

Zuoying Cao and Shengxi Wu, School of Metallurgy and Environment, Central South University, Changsha 410083, China.

Email: [email protected]; [email protected]

Search for more papers by this author
First published: 17 July 2019
Citations: 7

Abstract

A new compound, α-aminophosphonate derivative containing pyridine ring (PPDE), was designed and synthesized as an extractant for the separation of nickel from metal impurities. Over 94.5% of Ni (II) extraction from sulfuric acid solution was achieved by using PPDE with an equilibrium pH of 4.02. Meanwhile, high separation coefficients of 23.8 for Ni to Co, 84.9 for Ni to Mn, 254.1 for Ni to Ca and 696.7 for Ni to Mg, respectively, were obtained. It was noted that PPDE exhibited an excellent regenerability, and the extraction of Ni with the recycled organic phase ranged from 92.5% to 93.9% during six circulations. The extracted nickel complex was determined as [Ni (PPDE)2(DNNSA)2(H2O)4], which was supported by the data obtained from Fourier transform-infrared, UV–Vis and electrospray ionization-mass spectrometry spectra.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.