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Nickel processing - Extraction and refining | Britannica

Being free of sulfur, laterite nickel deposits do not cause a pollution problem as do the sulfide ores, but they do require substantial energy input, and their mining can have a detrimental effect on the environment (e.g., soil erosion). The range of process options is limited by the nature of the ore.

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Leaching Laterites: Two New Processes Make Progress | E & MJ

Direct Nickel Ltd. successfully tested its DNi laterite leaching process in a 1-t/d pilot plant, a section of which is pictured above. The plant used feed from PT Antam's Buli nickel mine in Indonesia, where Direct Nickel is considering building a 10,000-20,000 t/y commercial-scale plant.

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A low-pressure process to leach metals from laterite ores ...

Queensland Pacific Metals (Brisbane, Australia), a subsidiary of Pure Minerals (Perth, Australia; ) will use Direct Nickel Projects' (Perth, Australia) proprietary technology to process New Caledonian nickel and cobalt ore, following favorable test results.

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Process Development - sherritt

High pressure acid leaching of nickel laterite . High pressure acid leaching (HPAL) has been developed by Sherritt for recovery of nickel and cobalt from nickel laterite deposits (1 to 3% Ni). Laterite ore is leached at high temperatures (245 to 260ºC) with sulphuric acid to extract nickel and cobalt into solution.

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NICKEL-LATERITE PROCESS - Drinkard Jr., William F.

Mar 18, 2010 · Laterite ores usually contain iron, nickel, cobalt, magnesium, manganese, chromium, and/or aluminum. Known processes for treating laterite ores are capable of handling only high magnesium saprolite ores or high-iron limonite type ores, whereas the present invention can process a full range of ores, including transitional ores.

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Processing Nickel Laterite Ore without Pyrometallurgy ...

I think it is one of the reasons why BHPB decided to essentially get out of the nickel business because production of pig-nickel has put a ceiling price on nickel due to the vast laterite nickel resources around the world, if nickel price goes up production goes up and nickel price comes down! in .

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Direct Nickel Process Breakthrough Technology

to supply nickel to a hungry world market with a significant degree of value adding done in Indonesia. 2 The DNi Story Direct Nickel Limited (DNi) aims to become a leading global nickel producer, using the proprietary DNi Process to access and process nickel laterite resources, primarily

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Extractive Metallurgy: Extraction of Lateritic Nickel Ore

Usually, nickel ore type in the world are sulphide and oxide minerals. In East Indonesia, we often see nickel oxide mineral that is called nickel laterite. Lateritic nickel ores formed by intensive tropical weathering of ultramafic rocks above all serpentinites which consist largely of the magnesium silicate serpentine and contains approx. 0,3% ...

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Nickel processing | Britannica

The nickel content of laterites varies widely: at Le Nickel in New Caledonia, for example, the ore delivered to the smelter in 1900 contained 9 percent nickel; currently it contains 1 to 3 percent. Mining. With nickel found in two radically different types of ore, it is not surprising that the mining methods differ.

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Lateritic nickel ore deposits - Wikipedia
Ni-Co Laterites─A Deposit Model

profile. This innovation, DNi, developed by Direct Nickel, is a hydrometallurgical process capable of extracting 95 percent of the Ni and 85 percent of the Co in laterites (Direct Nickel, 2010). With the success of the DNi hydrometallurgical process, Ni-Co laterites may be a much larger contributor to the world's production of Ni. H istory

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08. Srecko Stopic - RWTH Aachen University

The Direct Nickel Process was developed in Australia representing a revolution in nickel production and a frontier advance in the processing of lateritic oxidic nickel ores (McCarthy & Brock, 2011, pp. 2-11). The Direct Nickel Group from Australia has created a new, simple and efficient process for extracting nickel from oxidic ored from ...

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High Pressure Acid Leach - Caldera Engineering

Overview. High Pressure Acid Leach (HPAL) is a process used to extract nickel and cobalt from laterite ore bodies. The HPAL process utilizes elevated temperatures (roughly 255 degrees Celsius), elevated pressures (roughly 50 bar or 725 psi), and sulfuric acid to separate nickel and cobalt from the laterite .

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Pressure Acid Leaching of Nickel Laterites: A Review

Download Citation on ResearchGate | Pressure Acid Leaching of Nickel Laterites: A Review | A review of the literature over the past 30 years on the processing of nickel laterites by high ...

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TREATMENT OF NICKEL LATERITES BY CHLORIDE AND .

With laterites representing about 70% of the world's nickel reserves, there continues to be an incentive to develop an economically and technically viable process for their treatment. A number of sulphate-based and chloride-based processes have either been built or have been proposed over the past

  • Authors: Bryn Harris · Carl White · Mike Dry · Phil EvansAffiliation: Mcgill UniversityGet Price
Production of ferronickel from nickel laterites in a DC ...

DC laterite process . DC-arc furnace technology can be used to provide an economical process for the smelting of nickel-containing laterite ores and dust, to produce a crude ferronickel product that could be refined to saleable ferronickel by conventional techniques.

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US8016913B2 - Nickel-laterite process - Google Patents

An improved method for processing of nickel-bearing ores, laterite ores, saprolite and limonite ores, oxidic and sulfide ores, metallurgical wastes, and other metal-bearing materials, to recover the valuable minerals contained therein, comprising comminuting ore to a desired size; leaching the ore at about 70 C to 130 C for about 30 minutes to 4 hours with nitric acid, raising the temperature ...

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Nickel Laterite's Integral Role in the Coming Nickel Boom ...
MURDOCH RESEARCH REPOSITORY

significant amount of nickel production from laterite sources. High Pressure Acid Leach (HPAL) remains the process of choice for treating limonite ores, especially for large scale developments. It has the advantages of high nickel and cobalt recoveries and is applicable to a wide range of ores.

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LATERITE NICKEL PROCESSING | Hongke Heavy Industry

Laterite nickel processing,preparation of the metal for use in various products. Although it is best known for its use incoinage, nickel (Ni) has become much more important for its many industrial applications, which owe their importance to a unique combination of properties.

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