Extraction of cobalt from a nickel and cobalt sulfate feed in mixer-settlers at equilibrium. The organic phase circulates from left to right and the aqueous phase …Web

Abstract Nickel is mostly extracted from sulfide ores, however, laterite ores account for over 60 pct of all nickel resources in the world, and despite its predominance, there is no well-established process to extract nickel from such ores. Nickel in laterites is hosted in many different compounds such as oxides, hydroxides, and silicates minerals. …Web

Consequently, developing an efficient and environmentally friendly method to synchronous extraction of nickel, copper, and cobalt from low‒nickel matte is a highlighted issue 8,9,10.Web

Nickel processing - Extraction, Refining, Alloying: The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are the use of higher-temperature refractories and the increased cooling required to accommodate the higher operating …Web

The new process developed by CESL and CSIRO uses SSX for the selective extraction of cobalt from a mixed nickel/cobalt solution containing other impurities. The resulting …Web

The annual global volume of waste lithium-ion batteries (LIBs) has been increasing over years. Although solvent extraction method seems well developed, the separation factor between cobalt and nickel is still relatively low—only 72 when applying conventional continuous-countercurrent extraction. In this study, we improved the …Web

This work describes the continuous separation of cobalt and nickel by solvent extraction in a numbered-up millifluidic system (1 mm ID) using Cyphos IL 101 (C101) as …Web

saprolite. The ore is dried and nickel is selectively reduced (together with cobalt and some iron) to metallic nickel at ~ 700°C. The metallics are extracted by leaching in an ammoniacal solution. Recovery of nickel and cobalt decreases with the increasing amount of saprolite since nickel and cobalt are locked in a silicate matrix and areWeb

By adjusting the extraction conditions, the content of nickel–cobalt-manganese in organic phase can be controlled and the composition of cathode materials can be changed. Moreover, the loaded organic phase with a Ni-Co-Mn ratio of 1:1:1 was completely stripping with 0.4 M HCl, and the cathode material was regenerated by oxalic …Web

Published: 18 June 2020 Efficient Synchronous Extraction of Nickel, Copper, and Cobalt from Low–Nickel Matte by Sulfation …Web

A direct solvent extraction (DSX) process to recover nickel and cobalt from laterite leach solutions is potentially more cost effective compared to the traditional precipitation and re-leaching method. A synergistic solvent extraction (SSX) system consisting of Versatic 10 and Acorga CLX 50 in ShellSol 2046 was studied for DSX …Web

Nickel-Cobalt Extraction Process from Low-Grade Laterite Ores Using Cyanex 272 and Versatic Acid 10 Sudibyo1*, L. Hermida2, Yuliana2, ... The results of nickel extraction in percentage extraction (% E) of nickel were listed in Table 2. The percentages of extraction (% E) for nickel is obtained by comparing the mass of nickel extracted with the ...Web

Nearly 90% of nickel and cobalt extraction and mineral carbonation efficiency are achieved in a highly selective, single-step process. Direct aqueous mineral carbonation releases Ni 2+ and Co 2+ into aqueous solution for subsequent recovery, while Mg 2+ and Fe 2+ simultaneously convert to stable mineral carbonates for permanent CO 2 storage ...Web

After the electrodialysis experiment, nickel and cobalt are decomplexed from EDTA at pH below 0.5 and all four metals are recovered with high purity of >99%. ... The optimal roasting and leaching conditions were determined and the average extraction of cobalt was increased by nearly 10% than ordinary activated roasting.Web

In addition, in pH less than 3.5, it is able to extract cobalt, manganese and nickel metals from the leaching solution, therefore; consumption of alkaline solution is reduced (Yang et al., 2017). Table 1 ... The drop of cobalt extraction efficiency can be attributed to the increase in the viscosity of the organic phase while increasing ...Web

In hydrometallurgy of laterite nickel ores, solvent extraction (SX) has been an important separation technique to enrich the nickel and its primary by-product, cobalt. …Web

Several studies on direct extraction of cobalt and nickel from citric acid leach solution has been conducted using DSX; however, the solvent load in this separation is still heavy because the concentration of cobalt and nickel in the leach solution is both small and smaller than the impurities (McKenzie et al., 1987, Ma et al., 2013).Web

Hydrometallurgical approach for nickel and cobalt extraction can be applied for . the treatment of all thre e types of the laterite ores. 3. Hydrometallurgical processing of laterites .Web

P507 has a much stronger extraction capacity for cobalt than for nickel . In order to achieve the selective separation of Ni 2+ and Co 2+ in the extraction solution, P507 was selected as the extractant to extract Co …Web

The extraction of zinc, cobalt, and nickel with Cyanex 272 and Ionquest 801 has been widely investigated in these years [27,28,29,30,31,32,33]. Most research studies focused on the metal separation properties in an attempt to find potential applications. Few research studies focused on their extraction mechanisms with some discrepancies that ...Web

Sankey diagram for the cobalt extraction process (single scored results using the ILCD method). S.H. Farjana, et al. Journal of Sustainable Mining 18 (2019) 150–161 153Web

Nickel and cobalt extraction from limonite ore will be leached with high-pressure sulfuric acid. Leaching limonite ore with sulfuric acid is selective in temperature and high pressure. The first plant for high-pressure acid leaching (HPAL) of laterite ores was built in Moa Bay, Cuba. Since then, itWeb

Therefore, an integrated process for both mineral carbonation and nickel and cobalt extraction from laterites will be more attractive. Show abstract. Laterites are important nickel and cobalt natural resources. However, the current production technologies are challenged by limited application to different laterites ore types and …Web

Ionic liquid can achieve selective extraction of copper, cobalt, and nickel [68, 69]. The remaining slag mainly contains iron oxide and preliminarily enriched precious metals and refractory metals. Iron oxide contained in the slag can be electrolyzed in alkaline aqueous solution to prepare micro–nano-iron. However, it is still very difficult ...Web

Cobalt, manganese and magnesium are simultaneously extracted by Cyanex 272, leaving nickel in solution, which is easily concentrated by solvent extraction using Cyanex 272. Nickel from the loaded organic phase is then stripped by nickel spent electrolyte in order to produce a solution suitable for nickel electrowinning.Web

ammonia solution, nickel is selectively extracted, while cobalt remains in the solution. The research object of this paper is phosphoric acid solution system, which is the same as that in the chloride and sulfate solution system. Ye et al. [28] studied the extraction behavior and mechanism of P204 for metal ions SCWeb

Nickel extraction Acid leaching Carbothermal reduction Response surface methodology Surface passivation XPS analysis 1. Introduction Nickel is an indispensable …Web

A novel hydrometallurgical process was developed to separate cobalt and nickel from hydrochloric acid leach liquor of mixed nickel–cobalt hydroxide precipitate. After the removal of Al(III), Ca(II), Cu(II), and Fe(III) by extraction with P204, Co(II) was selectively extracted over Ni(II) and Mg(II) using N235. The extraction of cobalt can …Web

A new synergistic extraction system containing Versatic 10 acid, Mextral 6103H and Aliquat 336 was investigated for nickel and cobalt recovery from nickel laterite leach solutions. It was found that the addition of 0.3 M Aliquat 336 could significantly improve the nickel stripping kinetics of the Versatic 10 acid and Mextral 6103H mixed …Web

Hydrometallurgical processing of Ni-Co laterites allows the extraction of both nickel and cobalt. Because of cobalt's high market price, the extraction of cobalt has a beneficial effect on the profitability of hydrometallurgical operations. The concentration of cobalt in the laterite deposits of the SEE region is usually around 0.05%.Web

This Review discusses the raw material extraction approaches that optimize technical performance and reduce environmental impact. ... cobalt, nickel, graphite, rare-earth elements, manganese ...Web

Usually, in order to separate cobalt and nickel, the solvent extraction method is mainly used, but this method is only suitable for the low concentration of nickel in the leaching solution, otherwise it is difficult to achieve the required separation factor (βCo/Ni), and the ion concentration of nickel in this study is larger than that of ...Web

At present, the large cobalt and nickel ores are in the process of clear depletion and the main ores of these two metals are constituted by minor mineral concentrations in ores formed by different metals. This requires the mineral extraction processes to be modified in each case. Thus, for …

Due to its low concentration in ores, cobalt is usually considered to be a companion metal which is of limited economic interest. The bulk of global cobalt production emanates as a by-product of extraction of commodities such as copper (~55%), nickel (~35%), and arsenic (Azevedo et al., 2018, Smith, 2001).The only exceptions, which …Web

, Nazmul Huda, M.A. Parvez Mahmud Add to Mendeley https://doi/10.1016/j.jsm.2019.03.002 Get rights and content Under a Creative …Web