Nickel processing
The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar …
The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar …
Ritcey et al. (1996) have developed a complete process, for the Resolute Bulong project, for the separation of cobalt and nickel in the presence of Mn and Mg, after iron neutralization. Their study proposed the use of Cyanex 272, first, to extract cobalt and manganese at pH = 4.5, leaving nickel and magnesium in the solution.
The second process stage is separation of nickel and cobalt to obtain clean products (Cheng et al., 2015; Ichlas and Ibana, 2017). Solvent extraction (called also liquid-liquid extraction) has ...
It is found that the maximum separation coefficient of nickel and cobalt is 1.2 × 10 4 at the extraction ratio of 1:1. Under this extraction ratio, the more extraction amount of cobalt, the less extraction amount of nickel. It realizes the effective separation of nickel and cobalt. Therefore, the best extraction phase ratio is regarded as 1:1.
The main challenge of this extraction and separation process are similar chemical and physical properties of these metals (Cox, 1992; Park and Mohapatra, 2006), and, thus, difficult selective ...
The widespread use of nickel metal as a new energy material in recent years has increased the demand to improve its smelting process and the recovery technology of the metal in slag. 1 In particular, with the gradual depletion of high-grade nickel ore in China and the higher cost of importing nickel ore, nickel ore with high magnesium …
This study presents a detailed review on the advanced hydrometallurgical treatment involving the extraction and separation of Cobalt (Co) and Nickel (Ni) by Cyanex® extractants.
production process, the ESS process, the V aniukov process, and the reduction roasting–magnetic separation process are presented in T able 1 . Among these, the RKEF process has the highest recovery
The separation of cobalt(II) and nickel(II) was achieved via a two-stage counter-current extraction using a 20% saponified 0.5 M Cyanex 272 solution. The loaded cobalt(II) was stripped using a 0.3 M sulfuric acid solution, leading to the crystallization of cobalt(II) sulfate powders.
The interest to the problem of isotope separation of nickel is due to the application of these isotopes in science and technique. The stable isotope 62 Ni is the start material for the obtainment of radioactive isotopes 63 Ni. 63 Ni is one of the most promising radionuclide that can be used in miniature autonomous electric power sources (nuclear …
The selective separation of cobalt and nickel from post-leaching solution is critical to ensuring a sustainable method of recovering each constituent metal with high …
Abstract In this paper, a process is reported for the recovery of cobalt and nickel from copper raffinate solutions using partially saponified Cyanex 272 and D2EHPA as the extractants. The aqueous feed contains 1.65 g/L cobalt and 16.42 g/L nickel. More than 99.9% cobalt separation was achieved with 0.13 M Cyanex 272 (60% neutralized …
COB-SX is unique and effective for not only nickel and cobalt separation, but also nickel and other impurities including magnesium. This report shows nickel sulfate refining process and some improvements about solvent extraction process such as removal of impurities and separation of organic and aqueous phase.
Nickel stripping by nickel spent electrolyte reached 99.4% (77.25 g/l nickel––Ni spent electrolyte: 55.45 g/l and Ni for electrowinning: 21.8 g/l). 4. ConclusionsBased on the data presented in this paper, there is suggested a complete solvent extraction process for nickel and cobalt separation from magnesium sulphate …
The present article reviews the insight into the available hydrometallurgical approaches for treating laterite ores and the separation of nickel and cobalt from hydrometallurgy routes. Caron process, a combination of pyrometallurgy and hydrometallurgy, is also well described in the review.
The metal nickel and cobalt in calcine were oxidized and leached in the form of ammonia ion, while iron and gangue existed in the slag, to achieve the separation of nickel and cobalt from iron and gangue. Carbonate ion plays the role of buffer, stabilizer, and complexing agent in the solution, and can adjust the pH of the solution system.
The evolution of cobalt –nickel separations is traced from the basic precipitation technologies employed in 1960s, through commissioning of the first cobalt …
Low-grade saprolite nickel laterite, characterized by complicated minerals composition and fine-grained and complex dissemination, was commonly treated with a low recovery efficiency of Ni and Fe by conventional methods. Hence, an improved direct reduction and magnetic separation process was proposed. Meanwhile, the …
Also, it was used for the recovery of nickel and separation of nickel and copper from ammoniacal solutions through co-extraction and selective stripping [12], [13]. In our recent studies on nickel(II) extraction from sulphate solutions using LIX 84 I, large differences in the percentage extraction behavior of Cu(II), Ni(II) and Zn(II) as a ...
A New Process for Co-Ni Separation – ALTA 2010 1 A New Process for Cobalt – Nickel Separation By D.L. Jones 1, T.M. McCoy, K.E. Mayhew1, C.Y. Cheng 2, K.R. Barnard, W. Zhang2 Presented by David Jones [email protected] ALTA 2010 Perth, WA, Australia May 25, 2010 1 CESL Limited, Richmond, BC, Canada
Distillation is a purification process where the components of a liquid mixture are vaporized and then condensed and isolated. In simple distillation, a mixture is heated, and the most volatile component vaporizes at the lowest temperature. The vapor passes through a cooled tube (a condenser), where it condenses back into its liquid state.
An assumption was made on the segregation mechanism of nickel from garnierite ore in the previous paper. In this work, the assumption was confirmed by experimental data by using same process for extraction of nickel by XMA, electron beam scanning microscope and chemical analysis of the concentrates obtained. Fine ferronickel powder having very …
The most important advantage of the CP–UF technique is the high selectivity of the separation that can be achieved when a selective binding agent is employed (Rether and Schuster, 2003) and the low energy requirements involved in the UF process. Separation selectivity can be due to the chemical properties of the binding agent and to …
Separation of cobalt, nickel, and manganese in leach solutions of waste lithium-ion batteries using Dowex M4195 ion exchange resin. ... not be considered as lost because the wash solution can be re-used to produce leaching solutions in a closed loop process. Nickel was eluted with 10 mL of 2 M H 2 SO 4 followed by 20 mL of DI water, ...
The separation factor of cobalt/nickel enhances from 148.98 to 3189.95. and the new saponification-extraction process applies in the recycling of LIBs successfully. The mechanism shows that the alkalinity introduced by saponification is the key factor affecting the separation and purity.
The kinetics of this membrane extraction process is close to the time needed to extract cobalt with [P 66614][Cl] using as extracting ... The transport of cobalt through designed SILM and its selective separation from nickel can be visually illustrated by the change of color of both aqueous phases over time (Fig. 15). Download: Download high ...
Cobalt/nickel separation with a supported ionic liquid membrane. • Efficient and highly selective sorption of cobalt. • Transport of cobalt possible using an hydrophilic …
The main problem of the separation process from nickel mining using the ion exchange technique is the presence of iron, which precipitates in pH above 2.00 and causes coprecipitation of copper and ...
This paper describes a hydrometallurgical process for nickel recovery, by electrowinning, from purified sulphate heap liquors (Fig. 1) and presents the results and …
The adsorption of nickel and cobalt ions by SG is a physical adsorption process, so its separation performance is limited. In comparison, en/SG has strong coordination with metal ions, and the nitrogen in ethylenediamine has different binding ability with nickel and cobalt ions.