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nickel sulphide flotation from serpentine

Effect of a novel phosphate on the flotation of serpentine

May 01, 2020· In the flotation process of serpentine-containing copper-nickel sulfide ore, serpentine slime coatings significantly reduced the flotation performance of copper-nickel sulfide. Sodium phytate is a highly effective dispersant for MgO control in the flotation of copper-nickel ore.

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(PDF) Selective flotation of ultrafine nickel sulphide

PDF On Sep 24, 2012, Peng and others published Selective flotation of ultrafine nickel sulphide from serpentine in saline water by pluronic triblock copolymer Find, read and cite all the

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The Critical Role of Pulp Density on Flotation Separation

In nickel-copper sulfide ore processing, serpentine is a common gangue mineral encountered in complex sulfide ores and can easily cause entrainment during flotation [].Large amounts of serpentine in the flotation concentrate reduces the effectiveness of smelting, often resulting in the imposition of smelter penalties on mineral processing companies [].

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v115n8a4 Effects on entrainment of serpentines by

contaminate metallic mineral concentrates during traditional flotation of coarse sulphide particles. This could pose quite a complicated and challenging problem in the case of some types of low-grade and finely disseminated Cu-Ni ores bearing high serpentine contents. This is the case for the copper and nickel sulphides from the Yunnan Mine, China.

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Effect of pulp rheology on flotation of nickel sulphide

(2012). Effect of pulp rheology on flotation of nickel sulphide ore with fibrous gangue particles. Canadian Metallurgical Quarterly: Vol. 51, No. 4, pp. 368-375.

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Flotation of Nickel-Copper Sulphide Ore: Optimisation of

the flotation recovery of Ni, Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH, collector dosage, % solids and depressant dosage at different levels was investigated. Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals

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FLOTATION OF COPPER-NICKEL SULFIDE ORES DAVID WESTON

What I claim as my invention is 1. A process for the flotation recovery of copper and nickel sulphide minerals from ore containing both such minerals by a process in which at least two conditioning steps precede flotation, said process comprising: -- conditioning a pulp of the ore in the presence of an alkaline agent to produce a conditioned alkaline pulp; then, in at least one further

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The effect of polyether on the separation of pentlandite

Oct 01, 2015· 1. Introduction. Serpentine is a magnesium-rich phyllosilicate mineral occurring in complex sulphide ores,.In nickel sulfide ore processing, serpentine may report to flotation concentrate through attachment to the valuable minerals as “slime coatings”,, .As a kind of magnesium silicate gangue mineral, large quantities of serpentine in flotation concentrates can cause problems

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NICKEL AND COBALT ORES: FLOTATION

result in nickel losses into the tailings. This problem can be overcome by using depressants like car-boxymethylcellulose (CMC) and guargum deriva-tives, although their cost accounts for as much as 60% of the reagent cost incurred in the plant. Developments in Flotation Flotation of Nickel Sul\de Minerals

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Nickel processing Extraction and refining Britannica

Nickel processing Nickel processing Extraction and refining: The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are the use of higher-temperature refractories and the increased cooling required to accommodate the higher operating temperatures in nickel

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(PDF) Selective flotation of ultrafine nickel sulphide

PDF On Sep 24, 2012, Peng and others published Selective flotation of ultrafine nickel sulphide from serpentine in saline water by pluronic triblock copolymer Find, read and cite all the

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Leaching of Low Grade Nickel Sulphide Serpentinite Ores: A

A low-grade disseminated nickel sulphide serpentinite ore from W.A. had a relatively high permeability after drying. Various techniques indicated that the permeability resided within a fine network of fibrous vein- lets and especially within coarse cracks along which the sulphides lay. The ore minerals were therefore open to selective extraction by chemical leaching.

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Effect of pulp rheology on flotation of nickel sulphide

(2012). Effect of pulp rheology on flotation of nickel sulphide ore with fibrous gangue particles. Canadian Metallurgical Quarterly: Vol. 51, No. 4, pp. 368-375.

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serpentine flotation equipment geboortespandoek

nickel sulphide flotation from serpentine. Flotation machine is the equipment to complete the flotation process, which is for the rough, fine and reverse flotation operations of copper, lead, zinc, nickel, Processed Materials Non-ferrous metal minerals such as copper, lead . Get Price

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Flotation Behavior of Jinchuan High Grade Copper-Nickel

The useful minerals of Jinchuan high-grade copper and nickel suphfide ores were mainly nickel and copper, whose grade were respectively 1.42% and 1.01%. The content of MgO and SiO2, main gangue components, reached 57.89%. The key to improve the separation indexes of flotation concentrate was to inhibit the gangue minerals effectively, therefore, the effects of different kinds of regulators on

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FLOTATION OF NICKEL SULFIDE ORES DOW CHEM CO,US

A method of concentrating nickel sulfide ores by flotation which comprises subjecting the ore in the form of a pulp to a flotation process in the presence of an effective quantity of a flotation collector comprising a dithiocarbamate compound corresponding to the formula ##SPC1## Wherein X is oxygen or sulfur and R is hydrogen or a hydrocarbon radical containing from 1 to 10 carbon atoms; R 1

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FLOTATION OF COPPER-NICKEL SULFIDE ORES DAVID WESTON

What I claim as my invention is 1. A process for the flotation recovery of copper and nickel sulphide minerals from ore containing both such minerals by a process in which at least two conditioning steps precede flotation, said process comprising: -- conditioning a pulp of the ore in the presence of an alkaline agent to produce a conditioned alkaline pulp; then, in at least one further

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Effect of sodium hexametaphosphate on separation of

separation of serpentine from sulfide ore in the flotation of the serpentine-bearing sulfide ore, especially in the flotation of the copper-nickel sulfide. The main gangue mineral has a much higher content of serpentine, and it is prone to being clayed, which seriously interferes with the flotation of nickel-containing minerals[1−8]. In order

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serpentine floatation process

01.04.2020· The flotation of sulphide ore in the presence of fine serpentine has been always a problem due to "slime coatings". To solve this problem, attempts were made for the first time to eliminate the slime coatings of serpentine in pyrite flotation using oxalic acid (OA) as the selective depressant.

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Nickel processing Extraction and refining Britannica

Nickel processing Nickel processing Extraction and refining: The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are the use of higher-temperature refractories and the increased cooling required to accommodate the higher operating temperatures in nickel

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Teck's CESL Nickel Process: Advancing Towards a Commercial

3 Nickel Sulphide Resources1 Nickel resources are typically classified as sulphides or laterites. Approximately 73% of the world’s nickel resources are estimated to be contained in laterites while 27% are as classified as sulphide. Currently, some 37% of the world’s nickel supply is derived from sulphide resources and almost all

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The Effect of Sodium Alginate on Chlorite and Serpentine

Chlorite and serpentine are common magnesium-containing gangue minerals in copper sulfide flotation. In this study, sodium alginate, a natural hydrophilic polysaccharide, was introduced as a selective depressant for these gangue minerals. Micro-flotation tests were conducted on both single minerals and synthetic mixtures. The flotation results showed that sodium alginate could

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MINERAL TESTS CONFIRM ECONOMICAL GRADE NICKEL SULPHIDE

Sep 21, 2020· The mineral studies determined the predominant Ni-sulphide mineral to be pentlandite ([Fe,Ni]9S8) with very minor millerite (NiS) and violarite (Fe2+Ni3+2S4). Silicate minerals, iron oxides and chromite contain relatively low nickel concentrations. The main silicates minerals include serpentine, pyroxenes, amphibole and chlorite.

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Unlocking Disseminated Nickel Sulphides using the CESL

the nickel from disseminated sulphides and provide a reliable means of nickel production for future projects. 4 CESL Nickel Process The CESL Nickel Process offers a method of unlocking the nickel from disseminated nickel sulphide ore bodies. It is capable of treating lower grade nickel concentrates and those with a high content of magnesia.

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