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Nickel processing Britannica
Nickel processing, preparation of the metal for use in various products. Although it is best known for its use in coinage, nickel (Ni) has become much more important for its many industrial appliions, which owe their importance to a unique combination of properties. Nickel has a relatively high
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EXTRACTION OF PRECIOUS METALS FROM EWASTE
metals like Gold, Silver, Copper, Selenium, mercury etc. Many of these products can be reused, refurbished, or recycled. Recovering precious metals from ewaste can also provide additional income with in the disposal process of end "of life electronics". In this paper few methods of extracting precious metals have been studied.
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US4254087A Extraction of copper, nickel and cobalt using
An extractant system comprising (a) a high molecular weight alkylaromatic sulfonic acid and (b) a chelating amine having a pKa of from about 3 to about 9 in a solvent which is essentially immiscible with water, said system being useful for the selective extraction of desired metals, e.g., cobalt, nickel or copper ions from aqueous acidic ore leach liquors.
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Journal of Membrane Science & Research Extraction
Extraction of nickel and its coextraction with copper from ammoniacal media into emulsion liquid membrane systems (ELMs) was investigated using LIX 84I as the carrier. Mea surement of the solute stripped in the internal phase of emulsion opened a new dimension in the study of the ELM extraction
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Nickel: Extraction and purifiion
Apr 24, 2010 · The US nickel coin contains 0.04 oz (1.25 g) of nickel, which at the April 2007 price was worth 6.5 cents, along with 3.75 grams of copper worth about 3 cents, making the metal value over 9 cents. Since the face value of a nickel is 5 cents, this made it an attractive target for melting by people wanting to sell the metals at a profit.
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SX Solvent Extraction of Metals: A Design Manual
Nickel, Cobalt, and Zinc Recovery by Solvent Extraction . The appliion of solvent extraction to copper recovery can now be considered an established, commercially viable process. This position has not yet been reached for the recovery of the other major nonferrous metals in which we are interested.
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Nickel Extraction and Purifiion Mond Process
Mond Process. The Mond process, sometimes known as the carbonyl process is a technique created by Ludwig Mond in 1890 to extract and purify nickel. The process was used commercially before the end of the 19th century. It is done by converting nickel oxides (nickel combined with oxygen) into pure nickel.
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Extraction and Refining of the Platinum Metals
bottom layer of nickel matte is tapped intermittently. By careful control of temperature and sulphur content a nickel matte can be obtained containing little copper and all the platinum metals, whereas any gold will have followed the copper sulphide into the "tops" layer. Casting the enrichd nickel
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Methods of Metal Recovery by Microorganisms (2 Methods)
Methods of Metal Recovery by Microorganisms (2 Methods) Thus, Aspergillus niger can extract copper and nickel while Aspergillus oryzae is used for extracting gold. Among the various microorganisms, T. ferrooxidans and T. thiooxidans are the most widely used in bioleaching. Extraction of copper by bioleaching is very common since the
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Process for cobalt separation and recovery SpringerLink
The leach liquor used for the present study contains Co =1.78 g/L and Ni=16.78 g/L. Before cobalt extraction, impurities, such as copper and iron, are removed from the leach liquor by the precipitation method. Increasing the concentration of Cyanex 272 increased the extraction percentage of cobalt due to the increase of equilibrium pH.
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Methods of Metal Recovery by Microorganisms (2 Methods)
Methods of Metal Recovery by Microorganisms (2 Methods) Thus, Aspergillus niger can extract copper and nickel while Aspergillus oryzae is used for extracting gold. Among the various microorganisms, T. ferrooxidans and T. thiooxidans are the most widely used in bioleaching. Extraction of copper by bioleaching is very common since the
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Nickel: smelting, producingMetalpedia
After producing the nickel matte, further processing is done via the SherrittGordon process. First, copper is removed by adding hydrogen sulfide, leaving a concentrate of only cobalt and nickel. Then, solvent extraction is used to separate the cobalt and nickel, with the final nickel concentration greater than 99%. Electrorefining
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NIOSHTIC2 Publiions Search 10009885 Solvent
Nickel and copper are coextracted with lix 64n from an ammoniacalammonium sulfate batch leach liquor containing 1.00 G/l nickel, 0.30 G/l copper, and 0.02 G/l zinc. Nickel and copper are then separated by selective stripping with spent nickel and copper electrolytes.
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Extraction of copper, nickel and cobalt from DeepDyve
Jul 01, 2011 · Read "Extraction of copper, nickel and cobalt from the leach liquor of manganesebearing sea nodules using LIX 984N and ACORGA M5640, Minerals Engineering" on DeepDyve, the largest online rental service for scholarly research with thousands of
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Recovery of copper, nickel and cobalt from the leach
Extraction of Cu is also investigated by various researchers. Extraction of copper, nickel and cobalt from the leach liquor of a sulphide concentrate by using LIX 84 is studied (Sahu et al., 2004
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The method of extraction of metals from copperlead
The method of extraction of metals from copperlead concentrate, including its leaching solution containing sulfuric acid in the presence of an oxidant, followed by separation of the solid and liquid phase, characterized in that as the oxidant used lead dioxide taken from 3 to 5% excess of theoretically required to oxidize the sulfides of
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Extraction of copper, nickel and cobalt from the leach
Extraction of copper, nickel and cobalt from the leach liquor of manganesebearing sea nodules using LIX 984N and ACORGA M5640 Article in Minerals Engineering 24(8):959962 · July 2011 with 46 Reads
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Copper & Nickel Solvent Extraction
It is known that LIX 64N is capable of extracting metal ions other than nickel and copper therefore, methods for controlling possible impurities in the leach liquor such as Mn, Mg, and Fe were considered. Manganese should be removed from the leach liquor before nickelcopper extraction otherwise it can be coextracted by the LIX 64N solvent.
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NIOSHTIC2 Publiions Search 10009885 Solvent
Nickel and copper are coextracted with lix 64n from an ammoniacalammonium sulfate batch leach liquor containing 1.00 G/l nickel, 0.30 G/l copper, and 0.02 G/l zinc. Nickel and copper are then separated by selective stripping with spent nickel and copper electrolytes.
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Enhanced methods for nickel recovery from lowgrade ores
Another method for extraction of nickel from the bleed stream is the use of solvent extraction (SX). Copperselective solvents can be chosen, and many steps are followed to get nickel and copper powder from the bleed. The following block flow diagram was shown in a paper by A. Agrawal et al. in 2012, demonstrating the steps of SX for nickel and
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