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Refining of nickel from lateritic ores

  • OPTIMIZATION OF NICKEL EXTRACTION FROM LATERITIC

    Lateritic nickel ore sample was taken from the Gördes (Manisa) region of Turkey. The sample used was a typical limonitic laterite ore with high iron content. According to the mineralogic analysis, the sample contains goethite, hematite and quartz. The XRD pattern of the sample was given in Figure 1.

  • Lateritic nickel ore deposits - Wikipedia

    The ore is stacked on impermeable plastic membranes and acid is percolated over the heap, generally for 3 to 4 months, at which stage 60% to 70% of the nickel-cobalt content is liberated into acid solution, which is then neutralised with limestone and a nickel-cobalt hydroxide intermediate product is generated, generally then sent to a smelter for refining.

  • Nickel Geoscience Australia

    The concentrates are then smelted (in a furnace) to produce a sulfide matte with up to 70% Ni. The final stage of processing is refining, involving pyrometallurical (heating) and hydrometallurgical (chemical) processes, which are utilised differently for nickel sulfide and lateritic nickel ores. Further information

  • Enhanced methods for nickel recovery from low-grade ores

    An excellent example the use of PAL on low-grade lateritic nickel ores is the Ambatovy mine in Madagascar, a joint venture between Sherritt, Sumitomo, and Korea Resources. This is one of the largest lateritic nickel mines in the world, and has the capacity to produce 60 000 tonnes of refined nickel a year, for at least 29 years. This mine also can produce 5 600 tonnes of refined cobalt, and 210 000

  • Environmental Guidelines for Nickel Smelting and Refining

    436 Nickel Smelting and Refining cathodes is the most common technology used for nickel refining. Electrowinning, where nickel is removed form solution in cells equipped with inert anodes is the more common refining process used for nickel. Chloride electrolytes are used although sulfuric acid solutions are used more often. Waste Characteristics

  • US3388870A - Upgrading of lateritic ores - Google Patents

    US3388870A US53824366A US3388870A US 3388870 A US3388870 A US 3388870A US 53824366 A US53824366 A US 53824366A US 3388870 A US3388870 A US 3388870A Authority US United States Prior art keywords nickel ore pellets metallic iron Prior art date 1965-04-07 Legal status (The legal status is an assumption and is not a legal conclusion.

  • Atmospheric pressure leaching of nickel from a low-grade

    Keywords: 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 obtained

  • Microbial Recovery of Nickel from Lateritic (Oxidic

    Nov 25, 2013· Mohapatra S, Pradhan N, Mohanty S, Sukla LB (2009) Recovery of nickel from lateritic nickel ore using Aspergillus niger and optimization of parameters. Miner Eng 22:311313 CrossRef Google Scholar Mulligan CN, Kamali M, Gibbs BF (2004) Bioleaching of heavy metals from low grade mining ores using Aspergillus niger .

  • Sherritt Provides Notice of First Quarter 2021 Results

    Apr 16, 2021· Sherritt is a world leader in the mining and refining of nickel from lateritic ores with projects and operations in Canada and Cuba. The Corporation is the largest independent energy producer in Cuba with power operations across the island.

  • Nickel Sulfide Versus Laterite : The Hard Sustainability

    ore grades). Conversely, nickel production from laterite ores is relatively complex. Laterite mines are all open cut, due to the large area and shallow nature of the ores, and commonly apply a basic beneficiation to ore before processing (flotation is generally unsuitable). The

  • Extraction of nickel from lateritic ores at atmospheric

    Agitation leach experiments showed that nickel and cobalt could be extracted from both ores. Nickel and cobalt extractions were 96.0% and 63.4% for nontronite; 93.1% and 75.0% for limonite after 24 h of leaching at 95 °C, respectively.

  • Nickel: smelting, producing-Metalpedia

    In hydrometallurgical processes, nickel sulfide ores undergo flotation (differential flotation if Ni/Fe ratio is too low) and then smelted. After producing the nickel matte, further processing is done via the Sherritt-Gordon 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

  • INVESTOR FACT SHEET August 2020

    mining and refining of nickel and cobalt from lateritic ores and become Cubas largest foreign investor through its Moa Joint Venture and as the countrys largest independent energy producer. As a producer of the highest purity nickel and cobalt and a continued focus on improving production efficiencies at its Moa JV, Sherritt is

  • Extraction of nickel from lateritic ores at atmospheric

    Jun 01, 2009· Agitation leach experiments carried out at atmospheric pressure with Gördes lateritic ores showed that nickel and cobalt could be recovered from both ores. Nickel and cobalt extractions were 96.0% and 63.4% for nontronite; 93.1% and 75.0% for

  • US4049444A - Process for treatment of lateritic ores

    Recovery, by thermal upgrading, of nickel values from nickeliferous lateritic ores containing a silicate fraction is improved by forming agglomerates of the ore, a reagent containing at least one

  • (PDF) Review of the past, present, and future of the

    Jan 30, 2021· Pyrometallurgical processing of the laterites is still a dominant technology, but the share of nickel and cobalt produced by the application of various hydrometallurgical technologies is

  • nickel smelting and refining process

    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

  • Sherritt International - Sherritt Appoints Interim CFO

    Nov 25, 2020· Sherritt is a world leader in the mining and refining of nickel and cobalt from lateritic ores with projects and operations in Canada and Cuba. The Corporation is the largest independent energy producer in Cuba, with extensive oil and power operations across the island.

  • Sherritt exits Ambatovy nickel joint venture Resource

    The 50/50 partnership, formed in 1994, involves the extraction and processing of nickel and cobalt from an open pit mine at Moa Bay in eastern Cuba. The laterite nickel ore is processed on site, producing mixed sulphides (containing nickel and cobalt) that are shipped in bags to Halifax, Nova Scotia and then transported by rail to a refinery in Fort Saskatchewan, Alberta.

  • Chemical composition of nickel laterite ore by fusion

    Stratigraphic rock facies of nickel laterite deposit are typically layered upward as follows: serpentinized peridotite saprolite transitional rock limonite ferricrete. These rock facies are also gradually changed in mineral assemblages and chemical compositions. Nickel is extracted from ores mined from saprolite to limonite layers.

  • Impacts of Laterite Mining of Nickel and Iron Ores on

    percent nickel. The limonites may have 20 percent or more iron compared to the saprolites. Most of the nickel and iron ores are exported to countries like China to extract and refine nickel, iron, chromium, cobalt and even some high valued metals such as platinum, vanadium, and titanium. There are 18

  • Environmental Guidelines for Nickel Smelting and Refining

    Nickel Smelting and Refining Industry Description and Practices Primary nickel is produced from two very different oreslateritic and sulfidic. Lateritic ores are normally found in tropical climates where weathering will, with time, extract and deposit it in layers at varying depths below the surface. Lateritic ores are excavated using large

  • Extraction of nickel from lateritic ores at atmospheric

    Jun 01, 2009· Agitation leach experiments carried out at atmospheric pressure with Gördes lateritic ores showed that nickel and cobalt could be recovered from both ores. Nickel and cobalt extractions were 96.0% and 63.4% for nontronite; 93.1% and 75.0% for

  • US4049444A - Process for treatment of lateritic ores

    All nickeliferous lateritic ores that contain a substantial silicate fraction can be treated by the process in accordance with the present invention. However, it is advantageous to treat

  • Sherritt misses 2020 nickel production target due to

    Jan 25, 2021· Sherritt is a world leader in the mining and refining of nickel and cobalt from lateritic ores with projects and operations in Canada and Cuba. Sherritt licenses its proprietary technologies and provides metallurgical services to mining and refining operations worldwide.

  • Nickel laterite processing and electrowinning practice

    Aug 01, 2002· Anthony and Flett (1997) reported that about 55% of the world's nickel production originates from sulphide ores while the balance of new nickel is derived from lateritic sources. At present, 14 nickel producers are members of the Nickel Development Institute, NiDi (2002).

  • (PDF) Review of the past, present, and future of the

    Jan 30, 2021· Review of the past, present, and future of the hydrometallurgical production of nickel and cobalt from lateritic ores July 2020 Metallurgical and Materials Engineering 26(2):199-208

  • Nickel metallurgy - AccessScience from McGraw-Hill Education

    Lateritic ores; Related Primary Literature; Additional Reading; The extraction and refining of nickel from its ores. Nickel's properties of strength, toughness, and resistance to corrosion have been used to advantage in alloys since ancient times. Paktong, similar to modern nickel silver, was used in the sixteenth century in China, and early

  • Extraction of nickel from lateritic ores at atmospheric

    Jun 01, 2009· Agitation leach experiments carried out at atmospheric pressure with Gördes lateritic ores showed that nickel and cobalt could be recovered from both ores. Nickel and cobalt extractions were 96.0% and 63.4% for nontronite; 93.1% and 75.0% for limonite after 24 h of leaching at 95 °C, respectively. Overall acid consumptions of ores under the optimum conditions were 669 kg H 2 SO 4

  • HYDROMETALLURGICAL EXTRACTION OF SCANDIUM FROM

    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 106 g/t scandium was studied and it was found that 80.6% of scandium within the ore

  • Processing of Nickel Laterite Ores on the Rise

    SX-EW, or the Solvent Extraction Electrowinning approach to lateritic ore beneficiation, is a hydrometallurgical method that relies on leaching, extractants, and electrowinning to produce nickel from ore. This process is often referred to as Leach Solvent Extraction

  • Extraction of nickel from lateritic ores at atmospheric

    Jun 01, 2009· Conventionally sulfuric acid pressure leaching (PAL) process has been the preferred route to extract nickel and cobalt from laterites (mostly limonite) due to precipitation of iron as hematite during leaching (Rubisov et al., 2000).

  • Commodity Nickel - Everything you need to know about Nickel

    Nickel from lateritic ore is extracted trough extractive metallurgy. It is extracted from its ores trough a conventional roasting method which removes the moisture from the ore. Next the nickel oxide is removed by reduction furnace which also greatly reduces the chemical bound water. Resulting in a 75% pure form of nickel. The extraction of nickel from the sulfidic ore requires a different method. Current methods

  • (PDF) Nickel Sulfide Versus Laterite: The Hard

    Nickel is then concentrated either in the fine-grained laterite where goethite is the main Ni bearer, the so-called lateritic ore, or below the laterites, in the saprolite level, where

  • (PDF) Nickel Laterite Ore Deposits: Weathered Serpentinites

    Nickel laterite ores account for over 60% of global nickel supply. They are the product of intensive deep weathering of serpentinites under humid tropical conditions.

  • Phases TransformaTIon of nIckel laTerITIc ore durIng

    Nickel lateritic ore are formed during lateritic weathering of ultramafic and mafic igneous rocks (peridotites, serpentinites, pyroxenites, and gabbros). Today, 40 % of the world Ni-production originates from, and 54 % of the total reserves are found in laterites [1]. Sulfide deposits and oxide ores are the two main resource of nickel.

  • Nickel and its extraction - SlideShare

    May 03, 2018· HYDROMETALLURGICAL APPROACHES: (CuNiFe)Limonite (FeO(OH).nHO) 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 metals from ore via a series of chemical reactions that

  • Sherritt Publishes Cobalt Reference Price and Warrant

    Nov 30, 2020· Sherritt International Corporation (Sherritt) (TSX:S), a world leader in the mining and refining of nickel and cobalt from lateritic ores, today published the Applicable Reference Cobalt

  • Nickel processing - Extraction and refining Britannica

    Encyclopædia Britannica, Inc. Various processes are used to treat nickel matte. One process is the ammonia pressure leach, in which nickel is recovered from solution using hydrogen reduction, and the sulfur is recovered as ammonium sulfate for use as fertilizer. In another, the matte may be roasted to produce high-grade nickel oxides; these are subjected to a pressure leach, and the solution is electro-

  • INVESTOR FACT SHEET February 2020

    Feb 01, 2020· by strong nickel and cobalt market fundamentals. Leader in mining and hydrometallurgical refining of nickel and cobalt from lateritic ores. Upside leverage to improving nickel and cobalt prices. Well positioned to capitalize on electric vehicle battery demand. Low-cost producer of high purity nickel and cobalt.

  • Cobalt extraction - Wikipedia

    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

  • The life of Ni - Nickel Institute

    BENEFICIATION ORE PREPARATION REFINING PRIMARY EXTRACTION PRIMARY EXTRACTION ORE MINING Surface - underground Class 1 nickel By-products Ferronickel Sulphidic Ore Lateritic Ore UPSTREAM SUPPLIES Electricity - fuels - materials Cradle-to-gate Unlike most other metals, nickel ores are found in diverse geological formations, in different mineralogical

  • US7988938B2 - Selectively leaching cobalt from lateritic

    A heap leach process for the recovery of nickel and cobalt from a lateritic ore, said process including the steps of leaching and/or agglomerating the ore with a lixiviant that includes ferrous

  • What Is Nickel Smelting? (with picture)

    Feb 13, 2021· Date: February 13, 2021 Nickel ore must melt until it becomes a product known as liquid matte, which is usually around 45 percent nickel. Nickel smelting is the process that nickel ore goes through to eventually remove impurities and leave just the nickel metal. While the ores can come from different stones and sources, they have two categories: lateritic, or rocks found in tropical climates

  • Sherritt reports strong nickel and cobalt production in Q1

    Apr 28, 2021· - Sherritt International (TSX: S), a world leader in the mining and hydrometallurgical refining of nickel and cobalt from lateritic ores, today reported that its finished nickel production at the Moa JV (Cuba) in Q1 2021 totaled 4,188 tonnes, up 9% from the 3,836 tonnes produced in Q1 2020 while finished cobalt production for Q1 2021 was 477 tonnes, up 19% from the 400 tonnes produced

  • Cobalt extraction - Wikipedia

    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.

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