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US4900522A

The invention is directed to separation of cobalt and nickel from a sulfate solution containing both ions in various proportions wherein the amount of cobalt recycle is significantly reduced as compared to solvent extraction processes wherein scrubbing of the loaded organic is employed in the conventional manner

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Method for separation of cobalt from nickel

Oct 23 1990This invention relates to a method for separation of cobalt from nickel in chloride solutions by control of pH type of oxidation agent and stoichiometry The separation is accomplished without use of expensive reagents In the processing of cobalt chloride solutions to produce cobalt metal powder there is an ongoing problem of presence of nickel

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Liquid–liquid extraction

From a hydrometallurgical perspective solvent extraction is exclusively used in separation and purification of uranium and plutonium zirconium and hafnium separation of cobalt and nickel separation and purification of rare earth elements etc its greatest advantage being its ability to selectively separate out even very similar metals

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Nickel Mining and Processing Everything you Need to Know

Nickel mining occurs through extractive metallurgy which is a material science that covers various types of ore the washing process concentration and separation chemical processes and the extraction process One of the most well-known purification processes is called the Mond Process which is an extracting and purifying process developed

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(609e) Solvent Extraction and Separation of Nickel and

Nov 07 2013However the co-extraction of nickel and vanadium by D2EHPA can be increased with increasing equilibrium pH and temperature It was shown that using sole D2EHPA pH 50 (the pH at 50% metal extraction) values for nickel and vanadium were 3 5 and 2 respectively which is not appropriate for the efficient separation of nickel and vanadium simultaneously

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Extractive Metallurgy of Nickel Cobalt and Platinum Group

1 1 Extraction of Nickel and Cobalt 1 2 Extraction of Cobalt From Copper–COBALT Ores 1 3 Extraction of Platinum-Group Metals From Sulfide Ores 1 4 Recovering Nickel Cobalt and Platinum-Group Metals From End-of-Use Scrap 1 5 Organization of Major Themes and Topics 1 6 Summary Chapter 2 Nickel Production Price and Extraction Costs 2 1

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Nickel and Cobalt

Solvent Extraction CYANEX 272 extractant has proven to be the reagent of choice for the separation of cobalt from nickel from both sulfate and chloride media It is used to produce a major portion of the world's cobalt Since the active component of CYANEX 272 extractant is a phosphinic acid metals are extracted through a cation exchange

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A New Process for Cobalt Nickel Separation

excellent cobalt-nickel separation primary leach liquor by Cyanex 272 However manganese extraction from the leach liquor along with cobalt could not be avoided thus increasing the cost of the process For sulphide ores there is another alternative if the ore can be concentrated by flotation matte smelting is used instead of leaching

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Separation of cobalt and nickel from acidic sulfate

7 Volkan Eyupoglu Recep Ali Kumbasar Selective and Synergistic Extraction of Nickel from Simulated Cr-Ni Electroplating Bath Solutions using LIX 63 and D2EHPA as Carriers Separation Science and Technology 2014 49 16 2485CrossRef

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Solvent Extraction of Cobalt SX

Solvent Extraction of Cobalt SX The United States produces essentially none of the cobalt and less than 10 pct of the primary nickel it consumes each year However it has been estimated that U S resources of cobalt and nickel are 842 000 and over 15 million short tons respectively

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Separation of Nickel and Copper by Solvent Extraction

The extraction of Ni(II) in acetate buffer media is better than in neutral 94% and 83% respectively In addition mechanisms of copper(II) and nickel(II) extraction have been established in neutral acid salt and acetate buffer media The results obtained are in good agreement with the speciation calculations given by the Cheaqs v

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method of separating nickel

Nickel-cobalt separation by solvent extraction method processes currently used for cobalt-nickel separation These differences are used in the extraction methods of separation of these two ions [1] The separation of Co(II) and Ni(II) by solvent extrac-tion

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Solvent extraction

Separation of cobalt from nickel Separation of cobalt and nickel from manganese and magnesium Extraction of molybdenum Extraction of lithium Recovery of rare earth elements Solvay also offers a range of processing aids to promote organic phase quality improve efficiency of clay treatment or optimize electrowinning operations

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recovery nickel extraction

Separation and recovery of copper nickel cobalt and zinc in chloride solutions by synergistic solvent extraction Nickel Mines Nickel Extraction Process Xinhai has manufactured nickel ore mining equipment for many years nickel ore mining process provided by Xinhai has high reputation among China and abroad

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Nickel

Nickel-Cobalt Separation Introduction Following the initial development of IMC's RapidSX™ process for the separation of rare-earth elements (REEs) the company turned its attention to the separation of nickel (Ni) and cobalt (Co) from a pregnant leach solution (PLS) produced from a 'real-world' bulk sample of Ni-laterite ore

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Extraction of Cobalt (II) From Sulphate Medium and

Cobalt and nickel are generally of important uses especially for metallurgists Their adjacent position in the first-row transition series results in very similar chemical behavior which causes problems in their separation A lot of work on extraction and separation of Co

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Liquid

The extraction of copper was lowest when chloroform was used as the diluent Separation and recovery of copper from a synthetic copper-nickel solution containing 6 35 g/L Cu(II) and 0 58 g/L Ni(II) was carried out using 20%(v/v) LIX 984N The separation factor (β= DCu/DNi) was found to be pH-dependent

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Extraction and separation of nickel and

Extraction and separation of nickel and cobalt from saprolite laterite ore were studied by using a method of microwave-assisted hydrothermal leaching and chemical deposition The effects of leaching temperature and time on the extraction efficiencies of Ni 2+ and Co 2+ were investigated in detail under microwave conditions

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Extraction and separation of vanadium and nickel from fly ash

Our group and short name "Tianyi" devoted in liquid-liquid centrifugal extracting machine research and manufacturing more than 10years our machine with high speed and efficient separation effect it applied in many fields such as oil water separation rare metal extraction in hydrometallurgy industry pharmaceutical industry chemical industry industrial wastewater treatment and so on

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Solvent extraction test work to evaluate J a Versatic 10

solvent extraction also removes residual iron zinc aluminium manganese and copper quantitatively from the solution The Versatic 10 acid circuit primarily separates nickel from calcium and magnesium The Tati demonstration plant currently uses five stages in the nickel solvent extraction circuit and the nickel loss to the raffinate is

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Separation Of Cobalt Extractant 272

As a result Eagles 290 can not only be used for the separation of cobalt from nickel but also for the separation of rare earths and the extraction of Ga In Mo Ge Zr etc Eagles 290 extractant is totally miscible with common aromatic and aliphatic diluents and is extremely stable to heat acid and alkalis

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Separation of Molybdenum Vanadium and Nickel by

The complete separation of molybdenum vanadium and nickel from aqueous solution was attempted Also investigated was the suitability of the extraction conditions for the states of vanadium (V3+ V4+ and V5+) 2O and iron elemental) The recovery of nickel from

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A Review on Solvent Extraction of Nickel – IJERT

Jan 06 2019Extraction and separation of nickel(II) using bis (2 4 4-Trimethyl Pentyl) Dithiophosphinic acid (CYANEX 301) and its recovery from spent catalyst and electroplating bath residue Solvent Extr Ion Exch Vol 17 (2) pp 367-390 1999

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Solvent Extraction Separation of Co(II) from Synthetic

In our experimental range extraction of nickel was negligible Among the cationic extractants tested in this study the highest separation factor between Co(II) and Mg(II) was obtained with saponified Cyanex272 Alamine336 in the presence of MgCl 2 extracted only Co(II) while the extraction percentage of Mg(II) was nearly zero

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nickel ore separation

A New Process for Cobalt Nickel Separation Teck May 25 2010 leaching and eventual Cyanex 272 separation of nickel and cobalt almost all nickel sulphide ores have been treated in this way however Contact US Cobalt extraction Wikipedia Cobalt extraction refers to the techniques used to extract cobalt from its ores and other compound ores

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Solvent Extraction and Process Development for Separation

Separation of individual rare earths from the rare earth concentrates obtained from monazite could be achieved by solvent extraction processes developed by Expert Besides this he also developed processes for the separation of cobalt copper nickel zinc etc which could be implemented in industries

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Cobalt extraction

Cobalt extraction refers to the techniques used to extract cobalt from its ores and other compound ores Several methods exist for the separation of cobalt from copper and nickel They depend on the concentration of cobalt and the exact composition of the used ore

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COBALT–NICKEL SEPARATION THE EXTRACTION OF COBALT(II)

Temperature dependance of the extraction equilibrium constants were determined to estimate the apparent thermodynamic functions (ΔG ΔS and ΔH) The method was used for separation of cobalt(II) and nickel(II) Cobalt(II) was separated from nickel even at 1 20 (Co Ni) ratio

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Basics of Leaching

Simply put leaching generally refers to the removal of a substance from a solid via a liquid extraction media The desired component diffuses into the solvent from its natural solid form Examples of leaching include the removal of sugar from sugar beets with hot water and the removal of nickel salts or gold from their natural solid beds with sulfuric acid solutions

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Copper Nickel Solvent Extraction

This report describes the separation of nickel and copper from cobalt through solvent extraction from liquor produced by the reduction roast and leaching unit operations of this method The coextracted nickel and copper are subsequently separated by selective stripping

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