laterite iron ore process may
Laterite Ore an overview ScienceDirect Topics
Laterite ores are excavated using large earth moving equipment and are screened to remove boulders A typical laterite ore may contain approximately 1–15% Ni with 40–50% Fe existing in the form of goethite [ (FeNi)O⋅ (OH)⋅ n H 2 O]In view of the dominant quantity of iron in typical limonite ores (ie 40 50% Fe), it has long been desired to develop a commercialscale process that is capable of recovering iron as a saleable byproduct Such a product would benefit the process by eliminating the primary residue stream as well as providing an additional source of revenueDevelopment of the ironfocused laterite (ARFe) processSummary of developmentARFe is a unique and novel process that aims to maximise value from lowgrade limonitic laterite ores by producing a saleable iron oxide byproduct form the ironrich ore feedDevelopment of the ironfocused laterite (ARFe) process
Technical Cost Comparison of Laterite Treatment
Laterite deposits typically contain ore zones with significantly different mineralogy, so any particular process may be applicable to only a portion of a new resource This paper is the third in a series examining the processing of a hypothetical limonite ore and a hypothetical saprolite ore using established and developing technologiesUsually, a significant fraction of total nickel content of laterite ore is associated with iron Nickel may substitute iron in iron oxide minera ls like goethite and thus selective leaching of nickel is not possible, as the chemical decomposition of the goethite is needed for nickel dissolution [10,11] In the HPAL processIron Control in Atmospheric Acid Laterite LeachingMay 01, 2015 Laterite deposits typically contain ore zones with significantly different mineralogy, so a ny particular process may be applicable to only a portion of a new resource This paper is the third in (PDF) Technical Cost Comparison of Laterite Treatment
Impacts of Laterite Mining of Nickel and Iron Ores on
Philippines where laterite mining is conducted that may cover 1,600 hectares or more, it is going to be inside or traversing one or more watersheds For instance, a watershed with a drainage area of 1,000 hectares or 10 km2, once stripped to about 15 to 25 meters of top soil including the nickel and iron oredevelopment team was to recover other saleable byproducts, in particular iron from limonitictype ore deposits, leading to the development of the iron focussed laterite (ARFe) process (Smit et al, 2011) ARFe is a sulphate based atmospheric leaching process where Development of the ironfocused laterite (ARFe) processcan render the process uneconomic The main reason for this is that for limonitic ores in particular, the very high iron content must be dissolved in order to solubilise the nickel 2 At high pressure and temperature, above 200°C, most of the iron is reprecipitated as hematite, and sulphuric acid Treatment of NickelCobalt Laterites
Home An Introduction in Laterite
High grade iron ores on top of tropical deposits of banded iron formations (BIF) are also attributed to lateritic weathering which causes dissolution and removal of siliceous constituents in the banded iron ore Lateritization processes are equally relevant for the alteration of gold deposits In the tropics the laterite cover around Testing the claims of laterite as an Iron Age ore source in northeastern Thailand is long overdue Although laterite may contain enough iron to be used as ore, assump tions of its use without analysis are problematic, and the inference that all lateritic iron was usable and exploited as ore has been unsubstantiated to date (see below)Laterite Nodules: A Credible Source of Iron Ore In Iron May 01, 2015 Laterite deposits typically contain ore zones with significantly different mineralogy, so a ny particular process may be applicable to only a portion of a new resource This paper is the third in (PDF) Technical Cost Comparison of Laterite Treatment
Smelting Iron from Laterite: Technical Possibility or
of lateritic iron ores seems to have become overly entrenched in the minds of archaeologists working within the region Statements like, ‘‘iron ore is much more widespread than the ores of tin and copper in Southeast Asia ’’ (Higham 1989:190) may be true (though cf Sitthithaworn 1990 where economic Thai• Treat iron and magnesium (and aluminium) as impurities, with only nuisance value Given that it is almost impossible to significantly upgrade laterites, the whole ore has to be processed, resulting in the size of the front end leaching process being much larger than in conventional hydrometallurgical plantsTREATMENT OF NICKEL LATERITES BY CHLORIDE AND Most laterite ore deposits are made up of both limonite (iron rich) and saprolite layers, with the thickness of each layer varying significantly across different deposits Limonite, which accounts for nearly double the amount of saprolite available globally, is more amenable to processing via hydometallurgical techniques, while saprolites are Processing of Nickel Laterite Ores on the Rise
(PDF) Hydrometallurgical Processing of Nickel Laterites—A
Mar 11, 2019 of the appropriate hydrometallurgical process for lateritic nickel ore ÖZ metals may be separated by pHcontrol into two iron, copper and profile in typical laterite deposits Concentration range of nickel andcobalt, which are target metals to determine ore grade, in these CRMs are from 0003 to 41 and 001 to 00 21 mass% Iron and magnesium content, which are indicative factor for determination of Determination of Chemical Composition of Nickel Laterite Laterite SlideShare 8/12/2016 0183; 32;Conclusions Laterite is sensitive to attack by salt crystallisation; salts migrate into the structure mainly from the ground Deferential weathering of laterite in the same environment suggests need for protection of weak laterite in damp environment Laterite with dense iron formation are found more durable and can be used in exposed conditions advantages and disadvantages of laterite stone Prominer
Processing Nickel Laterite Ore without Pyrometallurgy
Direct reduction is a method that may have merit, however slag chemistry can be problematic With low iron ore prices and low nickel prices, there would be little incentive to build new plants with new technology 62% Fe ore is now trading at less than $70/tonne, which In this study, an alternative approach for nickel and iron separation from a laterite nickel ore was investigated applying digestion – roasting – leaching – precipitation (DRLP) process in the presence of a basic additive Materials and method The lateritic ore sample taken from CaldagManisa in Turkey was used in the testsSEPARATION OF NICKEL AND IRON FROM LATERITIC ORE development team was to recover other saleable byproducts, in particular iron from limonitictype ore deposits, leading to the development of the iron focussed laterite (ARFe) process (Smit et al, 2011) ARFe is a sulphate based atmospheric leaching process where Development of the ironfocused laterite (ARFe) process
Development of the ironfocused laterite (ARFe) process
An additional challenge subsequently set to the development team was to recover other saleable byproducts, in particular iron from limonitictype ore deposits, leading to the development of the iron focussed laterite (ARFe) process (Smit et al, 2011)ARFe is a sulphate based atmospheric leaching process where the primary reagents are High grade iron ores on top of tropical deposits of banded iron formations (BIF) are also attributed to lateritic weathering which causes dissolution and removal of siliceous constituents in the banded iron ore Lateritization processes are equally relevant for the alteration of gold deposits In the tropics the laterite cover around Home An Introduction in Lateriteof lateritic iron ores seems to have become overly entrenched in the minds of archaeologists working within the region Statements like, ‘‘iron ore is much more widespread than the ores of tin and copper in Southeast Asia ’’ (Higham 1989:190) may be true (though cf Sitthithaworn 1990 where economic ThaiSmelting Iron from Laterite: Technical Possibility or
NiCo Laterites─A Deposit Model USGS
All three mineralogical types of ore may be present in a single NiCo laterite deposit The metalliferous laterites are mineralogically complex, discontinuous, and often have Ni enrichment in more than one of the weathering profile zones (Lelong and others, 1976)Testing the claims of laterite as an Iron Age ore source in northeastern Thailand is long overdue Although laterite may contain enough iron to be used as ore, assump tions of its use without analysis are problematic, and the inference that all lateritic iron was usable and exploited as ore has been unsubstantiated to date (see below)Laterite Nodules: A Credible Source of Iron Ore In Iron of heavy material having more than 67% iron may be obtained by adopting simple gravity concentration technique Lateritic ores are derivatives of lateralization of either hard massive or flaky, friable ores and hence occasionally present as “mixed lateritic ores” (Table 2) Typical lateritic ore Mineralogical Characteristics of Iron Ores in Joda and
advantages and disadvantages of laterite stone Prominer
Laterite SlideShare 8/12/2016 0183; 32;Conclusions Laterite is sensitive to attack by salt crystallisation; salts migrate into the structure mainly from the ground Deferential weathering of laterite in the same environment suggests need for protection of weak laterite in damp environment Laterite with dense iron formation are found more durable and can be used in exposed conditions profile in typical laterite deposits Concentration range of nickel andcobalt, which are target metals to determine ore grade, in these CRMs are from 0003 to 41 and 001 to 00 21 mass% Iron and magnesium content, which are indicative factor for determination of Determination of Chemical Composition of Nickel Laterite The iron and manganese ores occur as distinct sedimentary layers alternating with iron and manganesepoor sedimentary layers the whole mass is sometimes mined Iron ores of this type are commonly termed the banded iron formation or simply abbreviated as BIF All ore minerals in these deposits are oxides and hydroxidesGeological ore deposits The Australian Museum
Making Ferronickel from Laterite Nickel Ore by CoalBased
the exhaustion of nickel sulfide ore in China, developing the resource of laterite nickel ore with low nickel grade but abundant reserves has been paid attention [8] Laterite nickel ore is[5] an ore by longterm weathering of ultrabasic rocks containing magnesium and iron silicate mineral During the weathering process, Mg and Fe inJul 19, 2020 The laterite deposits have a low nickel content compared to iron content [1] Laterite iron ore reserves reached 4265 million tons, which is the largest iron ore reserves in Indonesia In addition to protolith and climate, the topography is also an essential factor in the formation of laterite nickel depositsOpen Access proceedings Journal of Physics: Conference seriestechnically challenging metals to process and refine, and every operation being unique, further challenges will also be asset dependent (Exhibit 1) For miners, the type of ore deposit—sulfide or oxide (or laterite, further subdivided into saprolites and limonites)—defines the whole value chain Depending on the specific circumstances, everyHow clean can the nickel industry become?
Separation of ironnickel alloy nugget from limonitic
A laterite ore from Indonesia was used in this study The chemical composition of nickel laterite ore is shown in Table 1, and its XRD pattern is shown in Fig 1 As shown in Table 1 and Fig 1, the main mineral of the raw nickel laterite ore is goethite and this laterite ore is a limonitic laterite ore Powder coal was used as the reductant in the