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Extraction of nickel from sulphide ore

  • Nickel processing Extraction and refining BritannicaBecause the conversion of nickel sulfide directly to metal would require an extremely high temperature (in excess of 1,600 °C [2,910 °F]), the removal of

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processing of nickel laterite ores on the risethe move to nickel lateriteslateritic nickel ore processingconclusionsulfides have long supplied the bulk of the global appetite for nickel. but dwindling resources combined with the need to mine at greater (and subsequently less economic) depths to obtain sulfide ores has many miners looking at nickel laterites. additionally, nickel is expected to see growth in demand as developing economies spur a greater need for stainless steel. similarly, demand is expected to grow as a result of nickels usee more on feeco estimated reading time 9 minsextraction of nickel and cobalt from sulfide oresall the nickel in nickel sulfide ores occurs in the mineral pentlandite hosted by silicate rock minerals referred to as gangue rock. the nickel sulfide is separated from the host rock by flotation....estimated reading time 3 minsnickel geoscience australiamost mined nickel derives from two types of ore deposits that form in very different geological environments magmatic sulfide deposits, where the principal ore mineral is pentlandite [(ni,fe) 9 s 8], and laterites, where the principal ore minerals are nickeliferous limonite [(fe,ni)o(oh)] and garnierite (a hydrous nickel silicate). magmaticatmospheric pressure leaching of nickel from a lowgradekeywords nickel recovery, laterite ore, leaching, calcination, kinetics 1. introduction nickel is an important metal used for a wide variety of applications. the worlds various deposits of nickel are in the forms of sulfide and oxide (laterites) ores. currently, the majority of nickel is obtainednickel sulfide versus laterite the hard sustainabilityin general, production of nickel from sulfide ores involves either open cut or underground mining, followed by concentration via flotation, smelting of concentrates to produce a nickel matte, finally leading to refining of matte to produce a pure metal. it is common for mines, smelters and refineries to be innornickel tests extraction of metals from waste after1 day ago· about 0 tonnes of nickel, 50 tonnes of copper, 80 kg of platinum group metals, 2 kg of g and 44 kg of silver were extracted last month from lownickel pyrrhotite product.preconcentration of low grade lateriticmassive sulphide lenses in association with metagabbro hosted disseminated sulphides. mineralogically the sulphide ore comprises an average 70% pyrrhotite, % pentlandite and 10% chalcopyrite. the tenor of the massive sulphides can be as high as 8% nickel. tati nickel comprises the phoenix open pit mine, a 5mtpa concentrator, two 2.5mtpaleaching and ion exchange based recovery of nickel andjan 01, · two significant ni minerals in sulphide ores are pentlandite [(ni,fe) 9 s 8] and nickeliferous pyrrhotite. there are several different techniques that can be used in the extraction of nickel and cobalt from various ore minerals. sulphide ores that are mined for ni and co contain between 1.5 and 3.0% ni and 0.051.0% co (crundwell et al., ). traditional processing of these orescited by 5nickel extraction from nickel sulfide concentrates by ironthe topics discussed include smelting laterite concentrates to sulfide matte, extracting nickel and cobalt from sulfide ores, the slow cooling and solidification of converter matte, extracting

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Advantages of extraction of nickel from sulphide ore

copper mining and extraction sulfide oresthe smelter for sulfide ores produces sulfur dioxide gas. this is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide ores. scrubbing sulfur dioxide also protects the environment. for example feo(s) + sio 2 (s) feo.sio 2 (slag) this isextraction of impure metals from concentrated oresaug , · the oxide of nickel is reduced by passing a current of water gas. 2nio + co + h 2 2ni + co 2 + h 2 o self reduction or autereduction this process is also known as air reduction process. the sulphide ores of less electropositive metals like hg, pb. cu are reduced by this method.nickel extracting miningextraction. nickel laterites are a very important type of nickel ore deposit. they are growing to become the most important source of nickel metal for world demand (currently second to sulfide nickel ore deposits). nickel laterites are generally mined via open cut mining methods. nickel is extracted from the ore by a variety of process routes.extraction of copper and nickel from lowgrade nickellowtemperature roasting, selective decomposition and waterleaching were used to extract nickel and copper from lowgrade nickel sulfide ore with highly alkaline gangue. the effects of variable factors, such as the dosage of roasting additives, the ore particle size, roasting time and roasting temperature, selective decomposition temperature and leaching temperature on the conversion ofextraction of nickel from a mixed nickelcobaltnickel ore in industrial scale. nickel and cobalt are extracted from pregnant leach solution (pls) by one of three methods. these methods are divided into three main categories depending on the downstream route (i) mixed sulphide precipitation (msp), (ii) mixed hydroxide precipitation (mhp) and (iii) direct solvent extraction (dsx)extraction of nickel nickel ore mining miningmar , · the ore body generally does not require rock drilling or blasting. nickel ore processing plant can directly use the excavator to shovel the ore. the thinner ore layers are first collected by the bulldozer and then shovel. nickel mining is divide into coppernickel mining and extraction of nickel from sulphide ore.sulfide ores an overview sciencedirect topics1.1.2 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 metalrich sulphide ore bodies by sequential solidification and/orconstruction refractorylined steelmetals extraction from sulfide ores with microorganismsjan 02, · additionally, for g and copper extractions, bioleaching is used to extract cobalt, zinc, nickel, and uranium from lowgrade ores and industrial effluents. in this review, the fundamental process of bioleaching from lowgrade metal sulfide ores are discussed with emphasis on mechanism, types, pathways, techniques, and bioleaching development.extraction of nickel from magnesianickel silicate oreapr 29, · sampling. magnesianickel silicate ore samples were obtained from the mangshi area of china, and they contained 0.83% ni, 5.63% fe, 0.0% co, 31.25% mgo, 6.25% al 2 o 3, 40.25% sio 2, and 0.26% cao.mineralization of this deposit was performed by two processes parent rock serpentinization and limonite mineralization, which led to the enrichment and mineralization of ni in

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The case of extraction of nickel from sulphide ore

nickel smelting, producingmetalpedia nickel is recovered through extractive metallurgy it is extracted from its ores by conventional roasting and reduction... most sulfide ores have traditionally been processed using pyrometallurgical techniques to produce a matte for further... electrorefining a second common form of furthersulfide mining overview sosbluewaters extraction and beneficiation or ore and minerals, volume 4 copper. us environmental protection agency, office of solid waste, 04. extraction and beneficiation or ore and minerals, volume 4 copper. us environmental protection agency, office of solid waste, 04. 22 extraction and beneficiation or ore and minerals, volume 4 copper. usmmi geochemistry for nickel explorationcommonly 0.1%1% ni. nickel contents of ore can be as low as 2% ni, so there is often not a great deal of difference in tenor between the ni sulphide and the hosting silicate rocks. both the interflow sediments and the basal sulphide complexes are sulphur rich and can accumulate chalcophile elements such as pd, co, cu, zn, cd and pb. (it isnickel extraction from nickel sulfide concentrates by ironthe topics discussed include smelting laterite concentrates to sulfide matte, extracting nickel and cobalt from sulfide ores, the slow cooling and solidification of converter matte, extractingextracting metals from sulfide oresweathering of sulfide orebodiesflotation separationextractive metallurgyinto the futureelectrowinningelectrorefiningacknowledgementrelated articlesbibliographythe first step in recovering metals from their minerals is that of finding orebodies in which metal sulfides are present in a sufficient quantity, and at a sufficient concentration, for mining to be economic. one of the six basic geophysical exploration groups of methods commonly employed in the search for minerals is based on the sensing of mineral conductivity and of currents flowing as a result of oxidation of the sulfide minerals in natural weathering underground. the induced polarization exploration technique involves anickel processing extraction and refining britannicabecause the conversion of nickel sulfide directly to metal would require an extremely high temperature (in excess of 1,600 °c [2,910 °f]), the removal of sulfur at this stage of the converting process is controlled in order to produce the 7075 percent nickel matte, which has a lower melting point. on the other hand, the relatively high ratio of sulfur (a major pollutant) to nickel in most nickel concentrates increases the burden of sulfur

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