Journal ArticleDOI
The complexes formed in the divalent transition metal-sulphuric acid-di-(2-ethylhexyl)-phosphoric acid extraction systems-cobalt(II), nickel(II) and copper(II) complexes
Taichi Sato,Takato Nakamura +1 more
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TLDR
In this paper, the DEHPA complexes of divalent cobalt, nickel and copper have tetrahedral, octahedral and square-planar structures with compositions CoX2.2H2O, NiX2HO, (NiX2O)3 and (CuX2)3 respectively.About:
This article is published in Journal of Inorganic and Nuclear Chemistry.The article was published on 1972-12-01. It has received 53 citations till now. The article focuses on the topics: Cobalt & Copper.read more
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Hydrometallurgical process for recovery of metal values from spent nickel-metal hydride secondary batteries
Pingwei Zhang,Toshiro Yokoyama,Osamu Itabashi,Yoshito Wakui,Toshishige M. Suzuki,Katsutoshi Inoue +5 more
TL;DR: In this article, a completely hydrometallurgical process has been developed for the recovery of metal values such as cobalt, nickel and rare earths from spent nickel-metal hydride (Ni-MH) secondary batteries.
Journal ArticleDOI
Solvent extraction of cobalt and nickel by organophosphorus acids I. Comparison of phosphoric, phosphonic and phosphonic acid systems
TL;DR: In this paper, the effect of a range of organic phase additives such as isodecanol and tributyl phosphate on the performance of the extraction of cobalt and nickel has been examined.
Journal ArticleDOI
Comparative Study on Structure of Solubilized Water in Reversed Micelles. 1. FT-IR Spectroscopic Evidence of Water/AOT/n-Heptane and Water/NaDEHP/n-Heptane Systems
TL;DR: The interactions of water with the polar headgroups in the reversed micelles of AOT and NaDEHP have been studied by as discussed by the authors, showing that water can interact with the headgroups of the reversed mouselles.
Journal ArticleDOI
Separation and recovery of cobalt(II) and nickel(II) from sulphate solutions using sodium salts of D2EHPA, PC 88A and Cyanex 272
TL;DR: In this article, cobalt and nickel were extracted from cobalt-free raffinate in two stages at equal phase ratio with PC 88A and Cyanex 272 followed by their stripping with 0.02 M H 2 SO 4 at O:A ratio of 4:3 and 2:1, respectively.
Journal ArticleDOI
New approach in the modelling of the extraction equilibrium of zinc with bis-(2-ethylhexyl) phosphoric acid
TL;DR: In this paper, the results from slope analysis, computer modelling and quantitative FT-IR spectroscopy have been compared for reactive extraction zinc sulphate/bis (2-ethylhexyl)-phosphoric acid (D2EHPA)/n-heptane.
References
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Book
Advanced Inorganic Chemistry
TL;DR: Cotton and Wilkinson's Advanced Inorganic Chemistry (AIC) as discussed by the authors is one of the most widely used inorganic chemistry books and has been used for more than a quarter century.
Book
Introduction to Ligand Field Theory
TL;DR: This chapter introduces the theory of transition metal chemistry and its applications in ligand field theory and discusses the role of uranium in this theory.
Journal ArticleDOI
On the Absorption Spectra of Complex Ions II
Yukito Tanabe,Satoru Sugano +1 more
TL;DR: In this paper, the authors solved the energy levels which are important in the absorption spectra of the normal complex ions, leaving the crystalline field strength as a parameter The values of B and C (Racah's parameters) there needed are determined from the observed spectras of free ions or in some cases by extrapolation The f -values of the transitions which connect energy levels calculated are estimated and compared with the observed intensities.
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Liquid extraction of metals from sulphate solutions by alkylphosphoric acids. I. Equilibrium distributions of copper, cobalt and nickel with di‐(2‐ethyl hexyl) phosphoric acid
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