Efficient and selective recovery of Ni, Cu, and Co from ...
Low-nickel matte was intensively characterized, and Ni, Cu, and Co were determined to exist mainly as (Fe,Ni)9S8 and FeNi3, Cu5FeS4, and (Fe,Ni)9S8 and Fe3O4 (in isomorphic form), respectively. The efficient and selective extraction of Ni, Cu, and Co from the low-nickel matte in an (NH4)2S2O8/NH3·H2O solution system was studied. The effects of (NH4)2S2O8 and NH3·H2O …
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Iron Recovery from Residue of Lateritic Nickel Leaching ...
certain temperature using Sulphuric acid. This method can achieve high nickel recovery with low acid consumption compared to atmospheric leaching. The temperature used in the HPAL process is around 250 C with about 4 MPa with the autoclave system. The problem appears with HPAL residue due to the huge quantity of residue, limited
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Roasting and Leaching Behavior of Nickel Laterite Ore ...
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. The sulfation-roasting-leaching process has ...
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(PDF) Electrolytic Recovery of Nickel from Spent ...
Plating industry is one of the largest polluting small scale industries and nickel plating is among the important surface finishing process in this industry. The waste generated during this operation contains toxic nickel. Nickel removal and recovery
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Process for the recovery of magnesium and/or nickel by ...
Abstract. The recovery of substantially pure magnesium and/or nickel sulphite which is present in a solid starting meterial. The latter is treated with gaseous SO/sub 2/ in water, the solution obtained is treated by a liquid-liquid extraction, to give an aqueous phase and an organic phase and the magnesium and/or nickel sulphite is recovered from the aqueous phase.
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Nickel-cadmium battery recycling through the INMETCO{reg ...
@article{osti_69706, title = {Nickel-cadmium battery recycling through the INMETCO{reg_sign} high temperature metals recovery process}, author = {Liotta, J J and Onuska, J C and Hanewald, R H}, abstractNote = {INMETCO, a subsidiary of Inco Limited, is the only facility in North America that provides the High Temperature Metals Recovery (HTMR) process for nickel-cadmium …
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Recovery of Valuable Metals from Nickel Smelting Slag ...
For settling slag, with the increase in pyrite dosage from 3% to 15%, the recovery of nickel and copper in flotation concentrate increased first and then decreased. When the dosage of pyrite was 9%, the recovery of nickel and copper reached the best value. The grade and recovery of nickel concentrate were 2.54% and 72.51%.
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Nickel recovery method and recovery device in nickel ...
Blog. PubChem ® is a registered trademark of the National Library of Medicine ® is a registered trademark of the National Library of Medicine
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Competitive effect of copper and nickel recovery with ...
With the rapid growth of the world's informatics innovation, printed circuit boards (PCBs) processing produces wastewaters with copper and nickel ions. This study aims to remove and recover copper and nickel ions from synthetic PCB wastewater using a fluidized-bed homogeneous granulation process (FBHGP). FBHGP is an advanced green technology that removes copper and nickel and …
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Cobalt and Nickel Recovery From Missouri Lead Belt ...
COBALT AND NICKEL RECOVERY FROM MISSOURI lEAD BELT CHALCOPYRITE CONCENTRATES by R. K. Clifford 1 and L. W. Higley, Jr.2 ABSTRACT Chalcopyrite (CuFeSz ) concentrates produced on the Lead Belt of Missouri typically contain 28 pct Cu and from 0.5 to 1.5 pct each of nickel and cobalt.
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Hydrometallurgical process for the separation and recovery ...
Hydrometallurgical process for the separation and recovery of nickel from sulphate heap leach liquor of nickeliferrous laterite ores Minerals Engineering, 2009 P. Tsakiridis
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(PDF) The recovery of nickel and cobalt from leach ...
PDF | On Jan 1, 2005, C.Y. Cheng and others published The recovery of nickel and cobalt from leach solutions by solvent extraction: Process overview, recent research and development | Find, read ...
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Nickel recovery from spent nickel catalyst
A process for nickel recovery from a spent catalyst of definite composition has been developed using the hydro-metallurgical route. The processing steps includes direct sulphuric acid leaching followed by separation of iron as well as silica and other impurities. For a 152 microm particle size catal …
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Sustainable recovery of nickel from spent hydrogenation ...
Sustainability analysis of the nickel recovery process. Sustainability performance of the closed-loop nickel recovery process is assessed and compared from three dimensions: economic viability, environmental emissions and social implications. The sustainability models developed in the previous sections are applied to this assessment and comparison.
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Recovery of nickel and cobalt from nickel laterite leach ...
Column experiments were performed to simulate the fixed-bed column process in the following two steps: first, removing copper; and second, recovering nickel and cobalt. Two acids were tested as eluent, namely, sulphuric and hydrochloric acid 1M and 2M. Batch experiments showed that increasing the recovery of the metals accompanied an increase ...
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How Sherritt Metals
Nickel Recovery. Before nickel can be recovered, unsaturated sulphur compounds must be eliminated from the solution. This is achieved by adding air at high temperature in the oxydrolysis tower. The nickel is then recovered from solution using hydrogen reduction, similar to cobalt. After filtering, washing, and drying the nickel powder, it is
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Nickel Mines, Nickel Extraction Process, Nickel Recovery ...
This process characterized by easier operation, longer flotation time, fewer concentrate flotation and process concentrate ore from different stages of separation, which can recovery nickel ore as soon as possible in the flotation process. The solution of copper-sulfide nickel ore …
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Nickel recovery by electroplating - Finishing
"Nickel recovery by electroplating" 2007. Q. From the literature, I found that the optimum condition for my nickel electroplating is as follow: electrolyte concentration: 100 g/L of 450 ml NiSO 4 Temperature : 60 °C pH : 4 Boric acid : 20 g/L
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US6733564B1 - Process for recovery of nickel from spent ...
The present invention relates to a process for recovery of nickel and alumina from spent catalyst by direct leaching with sulphuric acid in presence of small amount of an additive. The invention is useful for recovery of both nickel and sources of nickel and therefore important from the view of environmental protection, resource recycling and conservation.
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Nickel recovery process - Merck, Patent Gesellschaft Mit ...
Nickel recovery process . United States Patent 5238663 . Abstract: The invention relates to a process for recovering nickel from industrial effluents, characterized in that . a) the effluent loaded with nickel is allowed to settle in a corrugated-plate separator (1) for the removal of solid constituents contained therein, ...
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Environmental Guidelines for Nickel Smelting and Refining
436 Nickel Smelting and Refining cathodes is the most common technology used for nickel refining. Electrowinning, where nickel is removed form solution in cells equipped with inert anodes is the more common refining process used for nickel. Chloride electrolytes are used although sulfuric acid solutions are used more often. Waste Characteristics
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Canada Nickel Achieves 62% Nickel Recovery and ...
The nickel recovery is substantially higher than the 4-5 percentage point improvement in nickel recovery the Company is targeting for the feasibility study. ...
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WO2003080878A1 - Process for the recovery of nickel from ...
The present invention relates to a process for recovery of nickel and alumina from spent catalyst by direct leaching with sulphuric acid in presence of small amount of a persulphate based additive. The invention is useful for recovery of both nickel and sources of nickel and therefore important from the view of environmental protection, resource recycling and conservation.
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Nickel wet smelting process by-product recovery device ...
KR-101403281-B1 chemical patent summary.
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Hydro-Pyro Integration in the processing of Nickel Laterites
Other than the hybrid Caron process the only operating hydrometallurgical process for nickel laterites are HPALs. The first commercial HPAL plant started production in 1959 at Moa Bay in Cuba and still continues today and Sherrit a 50% joint venture (JV) partner in Moa is a partner in the construction of the similar Ambatovy project in Madagascar.
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Enhanced methods for nickel recovery from low-grade ores ...
The recovery of nickel from low-grade ores is increasingly more important, from new techniques of pressure oxidation of the concentrate in an autoclave to bioleaching of the nickel in the ore, it is evident that time and money are being put into researching these processes.
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The development of a novel hydrometallurgical process for ...
This laterite process includes two IX steps in the recovery of nickel ( Figure 11). 114 Nickel and cobalt are co-extracted from the pressure-acid leach liquor by SX using the sulfur-substituted ...
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Nickel Recovery Brochure | emewCorporation
Nickel Recovery Brochure. Simplify nickel and cobalt recovery process with emew process. Get Your Free Copy by filling out the form below. emew Corporation is committed to protecting and respecting your privacy, and we'll only use your personal information to administer your account and to provide the products and services you requested from us
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Nickel recovery/removal from industrial wastes: A review ...
Recovery of nickel from spent catalyst from palm oil hydrogenation process using acidic solutions Journal of Industrial and Engineering Chemistry, 16 ( 2010 ), pp. 251 - 255 Article Download PDF View Record in Scopus Google Scholar
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Direct Nickel Process – Breakthrough Technology
Direct Nickel has developed a game changing pro cess for extracting nickel from laterite deposits. It will position Direct Nickel as one of the lowest cash cost producers in the global nickel industry in the next 5 years. The Process offers unparalleled co st efficiency, capital savi ngs and environmental benefits.
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Competitive effect of copper and nickel recovery with ...
While at 25 mL·min -1, the highest removal was 83%, and 73% nickel granulation was achieved. Copper has been successfully recovered from synthetic PCB wastewater using FBHGP. At the same time, nickel needs a multi-step FBR, which is more suitable for the recovery of nickel under the same conditions applied during the same period.
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Development of a Solvent Extraction Process for the ...
Development of a Solvent Extraction Process for the Recovery of Nickel and Cobalt from Nitrate Solutions . Zela Tanlega Ichlas . This thesis is presented for the Degree of Master of Philosophy (Mining and Metallurgical Engineering) of Curtin University . November 2015
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Recovery of nickel and cobalt from nickel laterite leach ...
Copper recovery was maximal at pH 2.00, and the resin selectivity changed in pH above 2, decreasing copper adsorption. However, batch experiments showed that nickel and cobalt recovery was higher at pH 3.50, and resin adsorbed a high concentration of contaminants such as iron, zinc, and chromium.
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