Effect of Different Parameters on Synergistic Separation of Nickel and Cadmium from Sulphate Solutions using D2EHPA and Cyanex 302

Babakhani, Ataollah; Rashchi, Fereshteh; Zakeri, Alireza; Vahidi, Ehsan

doi:10.1002/9781118364833.ch65

Cited by 2 publications

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“…The synergistic effect of Cyanex 302 on solvent extraction of nickel and cadmium from sulfate solution with D2EHPA diluted in kerosene was also investigated by Babakhani et al 24 Experiments were carried out within a pH range of 0.1-5.0 using sole D2EHPA and D2EHPA-Cyanex 302 mixtures in different ratios. In the presence of the sole D2EHPA, the percentage of extraction for both cadmium and nickel increased with increasing the equilibrium pH.…”

Section: Introductionmentioning

confidence: 99%

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2023

MSEIJ

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In this study, solvent extraction is applied for extracting nickel from sulfate solutions containing iron and cobalt ions. This process can also be applied for the cleaning of waste solutions and for increasing solution concentrations after the leaching of low-grade nickel ores. Di-2-Ethylhexyl phosphoric acid (D2EHPA) was used as an extractant for this purpose. Effects of pH, aqueous/organic (A/O) phase ratio, iron, and cobalt ion contents of the solution on nickel extraction efficiency were investigated. The McCabe-Thiele diagrams for extraction and stripping steps were developed to determine the number of stages required. A total of two stages were required for 96.3% of Ni extraction and a total of two stages to strip nickel with 98% efficiency.

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Section: Introductionmentioning

confidence: 99%