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processing of nickel sulfide

Nickel Sulfide Concentrate Processing Using Low ...

2014-10-5  A fundamental processing scheme for nickel sulfide concentrate, including concentrate roasting with sodium chloride followed by two-stage cinder leaching (first with water then with sulphuric acid), is presented in Fig. 5. The proposed scheme has been proven on a laboratory scale.

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The High Temperature Co-Processing of Nickel Sulfide and ...

Clearly, each combination of nickel sulfide and laterite ore will differ in its co-processing behavior and there will be an optimum blend, supply of additional acid, and set of process conditions that maximizes nickel and cobalt recoveries, ensures minimal losses of acid to the residues, and minimizes the potential for scaling by divalent metal sulfates.

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Hydrometallurgical processing of nickel sulfide ...

The process flowsheet for sulfide concentrates treatment is offered, including the following principal circuits: pressure leaching; oxidised slurry’ neutralisation; oxidised slurry’ counter-current washing; iron removal; hydrolytic sedimentation of nickel concentrate. sulfide concentrates from various ore deposits can be used as the plant's feed.

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Hydrometallurgical processing of nickel sulfide ...

The process flowsheet for sulfide concentrates treatment is offered, including the following principal circuits: pressure leaching; oxidised slurry' neutralisation; oxidised slurry' counter ...

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The High Temperature Co-Processing of Nickel Sulfide and ...

The co-processing of these materials at 250 °C, with oxygen overpressure, using total pulp densities of 30% or 40% w/w, and a range of nickel concentrate to nickel laterite mass ratios between 0.30–0.53, yielded base metal extractions of 95% or greater.

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(PDF) The High Temperature Co-Processing of Nickel

2020-4-14  The co-processing of these materials at 250 °C, with oxygen overpressure, using total pulp densities of 30% or 40% w/w, and a range of nickel concentrate to nickel laterite mass ratios between 0 ...

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Hydrometallurgical Processing Options for Nickel Sulfide ...

Hydrometallurgical Processing Options for Nickel Sulfide Concentrates Honey, D. J. / Muir, D. M. / Hunt, P. R. / Canadian Institute of Mining, Metallurgy and Petroleum; Metallurgical Society Australasian Institute of Mining and Metallurgy 1997

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The Rise of Nickel Laterites and Advances in Sulphide ...

2017-5-31  Sulphide Processing • Pyrometallurgical processes are still predominant − Flash furnaces are the conventional smelting route • Hydrometallurgy is an emerging trend in sulphide processing due to: − Environmental pressures − Lower grades • Commercially applied processes include: −

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The High Temperature Co-Processing of Nickel Sulfide and ...

2020-4-14  The High Temperature Co-Processing of Nickel Sulfide and Nickel Laterite Minerals ( IF 2.644) Pub Date : 2020-04-14, DOI: 10.3390/min10040351 Robbie G. McDonald, Jian Li The pressure oxidation of low-grade nickel sulfide concentrate with high iron sulfides content generates significant amounts of sulfuric acid that must be neutralized.

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Nickel processing - Extraction and refining Britannica

2 天前  Nickel requires higher smelting temperatures (in the range of 1,350 °C [2,460 °F]) in order to produce an artificial nickel-iron sulfide known as matte, which contains 25 to 45 percent nickel. In the next step, iron in the matte is converted to an oxide, which

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Nickel Sulfide Concentrate Processing Using Low ...

2014-10-5  A method is proposed for processing nickel sulfide concentrates based on low-temperature roasting with sodium chloride. In the course of research, the dependence of valuable component extraction on excess sodium chloride and roasting temperature and duration is determined, and also cinder water and sulphuric acid leaching regimes are optimized. Optimum results are achieved with

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Hydrometallurgical processing of nickel sulfide ...

There were studied the upstream circuits of hydrometallurgical process flowsheet for treatment of nickel sulfide concentrates of Australian deposits. The content of basic components in analysed sulfide concentrates shows wide-range variation: 6.93–16.48% of Ni; 9.54–34.2% of Fe; 10.4–35.1% of S; 3.74–13.6% of Mg.

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Hydrometallurgical processing of nickel sulfide ...

Abstract. There were studied the upstream circuits of hydro-metallurgical process flowsheet for treatment of nickel sulfide concentrates of Australian deposits. The content of basic components in ...

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(PDF) The High Temperature Co-Processing of Nickel

2020-4-14  The co-processing of these materials at 250 °C, with oxygen overpressure, using total pulp densities of 30% or 40% w/w, and a range of nickel concentrate to nickel laterite mass ratios between 0 ...

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The High Temperature Co-Processing of Nickel Sulfide and ...

The pressure oxidation of low-grade nickel sulfide concentrate with high iron sulfides content generates significant amounts of sulfuric acid that must be neutralized. This acid can be utilized to leach metal values from ores such as nickel laterites. The present study demonstrates the use of a low-grade nickel concentrate generated from Poseidon Nickel Mt Windarra ore to enable additional ...

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COMPARISON OF METHODS FOR SULPHIDE

2020-7-18  Co-processing of higher grade oxide and/or sulphide feed materials is another option that can be considered to increase capacity and this practice has been used in Western Australian operations. Particularly the processing of nickel and/or cobalt bearing sulphide concentrates presents an opportunity for synergistic co-processing while increasing

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Nickel Extraction from Nickel Sulfide Concentrates by Iron ...

2021-9-1  The conventional process of nickel extraction from sulfide concentrates involves complex and costly steps, while also generating a considerable amount of sulfur dioxide. The solid-state extraction of nickel from nickel sulfide concentrates by iron addition was proposed as an alternative approach where the nickel was recovered into a ferronickel alloy in a simple process with minimal SO2 ...

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Acid leaching of nickel sulphide concentrates - ScienceDirect

1976-4-1  INTRODUCTION The hydrometallurgical processing of nickel sulphide concentrates is cur- rently restricted to ammoniacal leaching by the Sherritt Gordon process. Relatively little attention has been given to acid processes as a viable alter- native. The Cymet process, using an acid ferric chloride leach, has been developed primarily for ...

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DOWNSTREAM NICKEL SULPHATE STUDY UPDATE - IGO

• The IGO Process is a valueenhancement refining process designed to treat high- grade nickel sulphide - concentrate (18%-20% nickel) as opposed to a low-grade “whole of ore” laterite feed. • The significantly lower temperatures and pressures used in the IGO Process autoclave have lower risk

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Unlocking millions of tonnes of nickel - CSIRO

Traditional nickel laterite processing techniques use large quantities of sulphuric acid at high temperatures and pressures, resulting in expensive waste treatment and disposal of the chemicals used in the extraction process. Nickel laterites are becoming a priority for mining companies as traditional nickel sulphide reserves are depleted.

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Nickel Sulfide Concentrate Processing Using Low ...

2014-10-5  A method is proposed for processing nickel sulfide concentrates based on low-temperature roasting with sodium chloride. In the course of research, the dependence of valuable component extraction on excess sodium chloride and roasting temperature and duration is determined, and also cinder water and sulphuric acid leaching regimes are optimized. Optimum results are achieved with

Read More
(PDF) The High Temperature Co-Processing of Nickel

2020-4-14  The co-processing of these materials at 250 °C, with oxygen overpressure, using total pulp densities of 30% or 40% w/w, and a range of nickel concentrate to nickel laterite mass ratios between 0 ...

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WO2007039663A1 - Processing of nickel sulphide ore or ...

The present invention relates to a new hydrometallurgical process for recovering nickel from nickel bearing raw materials, such as sulphide flotation concentrates. In general, the process involves the oxidative atmospheric pressure leaching of nickel sulphide concentrates using a sodium chloride/hydrochloric acid based leach media.

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Hydrometallurgical processing of nickel sulfide ...

There were studied the upstream circuits of hydrometallurgical process flowsheet for treatment of nickel sulfide concentrates of Australian deposits. The content of basic components in analysed sulfide concentrates shows wide-range variation: 6.93–16.48% of Ni; 9.54–34.2% of Fe; 10.4–35.1% of S; 3.74–13.6% of Mg.

Read More
Nickel Extraction from Nickel Sulfide Concentrates by Iron ...

2021-9-1  The conventional process of nickel extraction from sulfide concentrates involves complex and costly steps, while also generating a considerable amount of sulfur dioxide. The solid-state extraction of nickel from nickel sulfide concentrates by iron addition was proposed as an alternative approach where the nickel was recovered into a ferronickel alloy in a simple process with minimal SO2 ...

Read More
COMPARISON OF METHODS FOR SULPHIDE

2020-7-18  Co-processing of higher grade oxide and/or sulphide feed materials is another option that can be considered to increase capacity and this practice has been used in Western Australian operations. Particularly the processing of nickel and/or cobalt bearing sulphide concentrates presents an opportunity for synergistic co-processing while increasing

Read More
Acid leaching of nickel sulphide concentrates - ScienceDirect

1976-4-1  INTRODUCTION The hydrometallurgical processing of nickel sulphide concentrates is cur- rently restricted to ammoniacal leaching by the Sherritt Gordon process. Relatively little attention has been given to acid processes as a viable alter- native. The Cymet process, using an acid ferric chloride leach, has been developed primarily for ...

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Nickel Sulfide Versus Laterite : The Hard Sustainability ...

2009-9-22  of nickel are found in either sulfide or laterite-type ores. Globally, the bulk of historic production has been derived from sulfide ores, while the majority of nickel resources are contained in laterite ores. The difference between production and resources is due mainly to the difficulty associated with processing

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Processing of Nickel Laterite Ores on the Rise

Traditionally, nickel has been processed from sulfide ores in an approach similar to copper processing, in which the ore is upgraded to concentrates and then smelted. As sulfide ore resources dwindle, however, processing of lateritic nickel ores is becoming of greater necessity, with many recognizing nickel laterite ores as the future of the ...

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Nickel sulfide process for the removal of H2 S - Foster ...

The nickel/sulfur melt may then be collected and transferred to a conventional smelting operation where, for example, it can be converted to nickel by roasting in the presence of an oxygen-containing gas. Accordingly, it is an object of the present invention to provide a process for the removal of hydrogen sulfide from a hot gas stream.

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