2 edition of extraction of nickel from sulphide ores by hydrometallurgical processes. found in the catalog.
extraction of nickel from sulphide ores by hydrometallurgical processes.
Daniel Akuamoah Dameh Boateng
Written in English
|The Physical Object|
|Number of Pages||295|
This process is used for the extraction of copper from low grade sulfide ore. In this process, the crushed and ground ore in bulk (about , tons) is exposed to air and water in big tanks. The air in the presence of water gradually oxidizes copper and iron sulphides to their surphides. The process is completed in about one year. The Cuprex™ metal extraction process produces cathode-grade copper using a hydrometallurgical process based on chloride leaching of sulfide ore concentrates. The process incorporates several novel steps to overcome the major problems associated with earlier chloride-based processes, including mild leaching conditions using ferric chloride as leachant and solvent extraction Cited by:
Hydrometallurgy is the most suitable extractive technique for the extraction and purification of manganese as compared to all other techniques including biometallurgy and pyrometallurgical processes. In the hydrometallurgical processing of manganese from its ore, the leach liquors often contain divalent ions such as iron, manganese, copper, nickel, cobalt and zinc along with other Cited by: Recovery from laterite ores. Nickel-cobalt lateritic ores can be treated by either hydrometallurgical processes or pyrometallurgical processes, such as matte or ferronickel smelting, which require the entire ore to be melted and the metal values to be separated from the residual components of the ore. The hydrometallurgical process for laterite ore can use sulfuric acid or ammonia leach solutions.
Laterite ore is a major primary source of nickel and cobalt production along with sulfide ore. There are various processes that have been implemented for extracting nickel from laterite ore. Basically, those processing tech-nologies use pyrometallurg, hydrometallurgy y or a combination of these routes dependent on the ore type, the. The nickel content in such sulRde ores is generally low (}3%) and varies from place to place in the same deposit. The low nickel content of the present-day nickel sulRde ores renders them unsuitable for either direct smelting or hydrometal-lurgical extraction, thus requiring beneRciation. The usual method of nickel extraction from sulRdeFile Size: KB.
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Extraction of valuable metals from sulphide minerals. It is unique in its application to low-grade ores, which cannot be beneficiated economically. It should be viewed as an alternative technology having high chemical specificity. In the following section the basic principles and fundamentals of hydrometallurgy are explained (Osseo-Asare &.
Nickel, cobalt and platinum group metals are key elements for materials processing. They occur together in one book because they (i) map together on the periodic table (ii) occur together in many ores and (iii) are natural partners for further materials processing and materials manufacturing.
This chapter describes nickel sulfide ores and provides an overview of the methods used to extract nickel and cobalt from these ores. Nickel sulfide ores occur as disseminated or massive ore bodies. Lateritic ores are formed by prolonged weathering of ultramafic rocks. The laterite deposits exhibit graded layers of ore, with high iron, low nickel ore on top and low iron, high nickel ore below.
The low iron (ores containing — % Ni are treated by pyrometallurgical processes to Cited by: 1. Nickel is a chemical element with symbol Ni and atomic number It is a silvery-white lustrous.
In hydrometallurgical processes, nickel sulfide ores are concentrated with flotation (differential flotation if Ni/Fe ratio is As such, nickel is capable of fully collecting all six PGE elements from ores, and of partially collecting gold.
Disseminated nickel ore bodies are widely distributed around the world and are found in most of the known nickel sulphide districts. Teck has developed a novel hydrometallurgical process for treating low grade nickel concentrates and polymetallic concentrates with high magnesia content without the need for separation at the milling stage.
leach process is more effective in nickel extraction from lateritic ores. Introduction Despite 73% of nickel sources in earth are lateritic, only 44% of the total nickel is being produced from laterites .
To meet future demand for nickel, there is an increasing proportion of nickel being extracted from laterite ores File Size: KB. (54) Title: CHLORIDE ASSISTED HYDROMETALLURGICAL EXTRACTION OF NICKEL AND COBALT FROM SULPHIDE OR LATERITE ORES (57) Abstract A process for the extraction of metal from an ore or concentrate which contains nickel and/or cobalt values and other metals, comprises subjecting the ore or concentrate to acid leaching under pressure at pH 5 2 to.
hydrometallurgical extraction route of lateritic (oxide) nickel-cobalt ores. In a previous work, the high pressure sulphuric acid leaching behaviour of a typical lateritic ore containing g/t scandium was studied and it was found that % of scandium within the ore Author: Yavuz Topkaya, Carsten Dittrich.
b) Nickel/cobalt precipitation as mixed sulphides, then releach in an oxidizing environment, either acidic or ammoniacal. This route is still used successfully at Murrin Murrin, at Moa Bay/Sherritt, and at Coral Bay/Niihama.
For laterite ores, these are the main routes used in the hydrometallurgical nickel Size: KB. Hydrometallurgy in extraction processes.
In terms of ore types, a hydrometallurgical process is suitable for handling complex ores, low-grade ores, and secondary resources due to its selective.
OutOtec HydrOmetallurgical Nickel PlaNts aNd PrOcesses BeNefits Outotec VSF® Solvent Extraction process has impressive references in metals production. For nickel and by-products recovery, our portfolio includes Nickel sulfide ores or matte may contain valuable amounts of precious metals.
Outotec offers process. This chapter describes the processes by which cobalt is made and its recovery. Primarily, cobalt is extracted as a by-product from leaching of nickel laterite ores and smelting of nickel sulfide ores.
Both these processes produce an intermediate sulfide that is refined by hydrometallurgical techniques.
Nickel is recovered through extractive metallurgy: it is extracted from its ores by conventional roasting and reduction processes that yield a metal of greater than 75% purity.
In many stainless steel applications, 75% pure nickel can be used without further purification, depending on. Nickel is commonly present in two principal ore types – sulfide or laterite ores. Sulfide ores are typically derived from volcanic or hydrothermal processes and usually include copper (Cu) and/or cobalt, and sometimes other precious metals such as gold or platinum and palladium (generally grouped as platinum group metals or PGMs).
Hydrometallurgy in Extraction Processes C. Gupta, It also highlights ion exchange, carbon adsorption and solvent extraction processes for solution purification and concentration. The extensive reference listover makes this set a valuable resource for extraction and process.
Extraction of Nickel and Cobalt from Sulphide Ores Sulphide ores were mostly created by (i) the intrusion of molten magma from the mantle into the crust of the earth and (ii) the formation of localized metal-rich sulphide ore bodies by sequential solidification and/or hydrothermal leaching and.
HYDROMETALLURGICAL APPROACHES: (Cu₈Ni₁₆Fe₁₀)→Limonite (FeO(OH).nH₂O) • Solvent Extraction – Electrowinning approach to lateritic ore beneficiation, is a hydrometallurgical method that relies on leaching, extractants, and electrowinning to produce nickel from ore Heap leaching is an industrial mining process to extract precious.
Hydrometallurgical process for the separate recovery of nickel and cobalt using ion exchange of solutions, e.g.
obtained by leaching by ion-exchange extraction. for recovering nickel from high magnesium-containing Ni-Fe-Mg lateritic ore AUB2 Hydrometallurgical process of nickel oxide ore.
Get Quote. extraction application in the nickel industry and it is from that point of view that some of the major advances are reviewed below. Coming of age in copper solvent extraction The classical route for Cu recovery from sulphide ores involves concentration, smelting and electrorefining.
It is well suited when the ore also contains appreciable Cited by:. Extractive metallurgy of nickel. Both of them typically contain % of nickel. Extraction of nickel from sulfide ores. Extraction of nickel from sulfide oresis carried out by the following process: Hydrometallurgical process involves ammoniacal or sulfuric acid leaching followed by nickel .Extraction of Nickel, Cobalt and Iron from Laterite Ores by Mixed Chloride Leach Process Pyrometallurgical Processing of Lateritic Ores.
Hydrometallurgical Processing of Lateritic Ores  Comparison of PRO Laterite Process with Commercial Processes. Conclusion. Ni–Co Related; Information; Close Figure Viewer. Browse All Cited by: 1.Copper Mining Extraction Process Flow Chart. This flowchart made of machinery icons explains or expresses in simple but clear terms the step of the Copper Mining and Copper Extraction Process.
Starting from either open-pit or underground mining and using a different relevant treatment method for oxide or sulphide copper mineral (ore).