flotation of ni sulphides

Method for separation of elemental sulphur and sulphide ...

FIELD: chemistry. SUBSTANCE: method for separation of the elemental sulphur and sulphide concentrate from the intermediate products of the sulphide concentrates hydrometallurgy processing includes sulphur-sulphide flotation of the intermediate original pulp in order to separate the sulphur and sulphides from intermediate oxide components with forming of the sulphur-sulphide concentrate.

flotation of ni sulphides - visitacicastello.it

flotation of cu and ni - mantelzorgleiderdorp.nl Flotation Reagents - suppliers, manufacturers, exporters. It is also used in flotation of nickel ores, especially for the flotation treatment of Cu-Ni compound sulfide ore as well as gold mine associated with pyrite.

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 [].

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

Flotation of sulphides ore fines and ultrafines particles ...

Flotation of sulphides ore fines and ultrafines particles. ... ni están optimizadas para la recuperación ... can also accelerate the oxidation consumption of sodium sulfide in flotation …

flotation of ni sulphides - reizenmeteenoverlander.nl

flotation of ni-sulphides - greenrevolutionorgin. Differential flotation of chalcopyrite, pentlandite and pyrrhotite in Ni, A new method for the treatment of Ni-Cu sulphides ores from the Sudbury region by differential flotation is presented. arsenide depression in flotation of multi sulfide …

Development of a Combined Flotation and High Pressure ...

Effect of PAX provided an overall effective bulk flotation as grades of 1.56 wt% and 0.75 wt%, and recoveries of 84.73% and 25% Cu and Ni were observed re-spectively. It has been observed that Ni recovery wassubstantially low er than copper recovery; this is particularly due to the presence of non-sulphide Ni in

(PDF) Flotation of an Oxidized Copper Sulfide Ore

The flotation of sulphide minerals and their modulation has been a subject of investigation for many years. The influence of pH, D p, D b and xanthate concentration on the sulfide minerals ...

Nickel: smelting, producing-Metalpedia

The principle nickel sulphide is pentlandite (NiFeS2), which is usually associated with chalcopyrite and iron sulphides. International Nickel (INCO) and Sherritt Gordon use a bulk Cu/Ni float pictured below, followed by selective flotation of the two elements into separate concentrates. Other Canadian producers leave separation to the smelters.

The selective flotation of pentlandite from a nickel ore ...

The selective flotation of pentlandite from a nickel ore Senior, G.D.; Trahar, W.J.; Guy, P.J. 1995-06-01 00:00:00 Nickel sulphide ores containing pentlandite, pyrrhotite and talc have traditionally been treated by bulk sulphide flotation, an approach which seeks to maximise nickel recovery and talc rejection but which does not reject ...

Lime use and functionality in sulphide mineral flotation ...

Following bulk sulphide flotation, where soda ash is added as the pH modifier, sodium amyl xanthate as the collector and MIBC as the frother, slaked lime is added to depress the pentlandite and effect Cu-Ni separation . Selective flotation of pentlandite from the iron sulphides (mainly pyrrhotite) is also an issue.

Froth flotation - Wikipedia

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.

NICKEL AND COBALT ORES: FLOTATION

sulfide deposits Formula Nickel content (%) Nickel minerals Primary ... Table 2 Distribution of Ni and S in sulfide ores Ore source Nickel distribution (%) Sulfur distribution (%) Pentlandite Pyrrhotite Pentlandite Chalcopyrite Pyrrhotite ... III/NICKEL AND COBALT ORES: FLOTATION 3493.

Impact of oxidation on flotation of Ni–Cu sulphide ore ...

Impact of oxidation on the flotation of a complex Ni–Cu sulphide has been investigated using two approaches. In the first approach, the samples to be floated were allowed to oxidise before ...

Copper-nickel sulfide ore flotation process

Closest to the proposed invention the technical essence is used as a collector in flotation of sulfide copper-Nickel ores butyl Aeroflot [3]. Disadvantages butyl Aeroflot, as the collectors in flotation of sulfide copper-Nickel ores are low selectivity of the extraction of copper in copper concentrate, a significant consumption of the collector.

FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide …

sulphide ore flotation practices in brief and processes adopted in HZL's plants. It also highlights R&D efforts made and new technologies adopted in one of the most complex sulphide ore beneficiation plants to solve metallurgical problems in flotation process. Key Words : Froth flotation, Sulphide flotation, Control system, Flotation

Potential Use of Oxygen Depleted Air In Nickel Sulphide ...

Potential Use of Oxygen Depleted Air In Nickel Sulphide Flotation Bianca Henriques Leal Andrade Geosciences, master's level (120 credits) 2018 Luleå University of Technology

Violarite - Wikipedia

Violarite is an important transitional ore in many nickel sulfide mines, as it has increased nickel tenor (Ni% as a total of sulfide)and occupies a position within the mineralised profile where it must be extracted to pay for development down to the most valuable fresh mineralisation.

flotation of cu and ni - supremewheels.co.za

The paper describes Falconbridge Technology Center experience in commissioning of the Mini Pilot Plant with a Cu/Ni/PGM sulphide ore followed by a validation of the technology . Flotation of NickelCopper Sulphide Ore ResearchGate. Aug 12, 2014 optimum conditions for the flotation of nickel, copper and cobalt from a nickelcopper sulphide ore.

A review of the physicochemical properties and flotation ...

A review of the physicochemical properties and flotation of pyrrhotite superstructures (4C – Fe 7 S 8 / 5C – Fe 9 S 10) in Ni‐Cu sulphide mineral processing Ravinder S. Multani. Department of Mining and Materials Engineering, McGill University, 3610 …

flotation of ni sulphides - reizenmeteenoverlander.nl

flotation of ni-sulphides - greenrevolutionorgin. Differential flotation of chalcopyrite, pentlandite and pyrrhotite in Ni, A new method for the treatment of Ni-Cu sulphides ores from the Sudbury region by differential flotation is presented. arsenide depression in flotation of multi sulfide minerals ...

Copper-Nickel ores - Danafloat

Some plants use bulk flotation in an acid pH environment which is achieved using SO2 or H2SO4. Separation of the bulk concentrate copper and nickel minerals is generally accomplished by flotation of the copper from pentlandite and nickel-bearing iron sulphides which report to the flotation …

Differential Flotation of Chalcopyrite, Pentlandite and ...

AbstractA new method for the treatment of Ni–Cu sulphides ores from the Sudbury region by differential flotation is presented. The method exploits the ease of chalcopyrite floatability in complete or virtual absence of collector, but in the presence of sulphur dioxide, an effectivecomplexing agent such as diethylenetriamine (DETA) and a frother.

Leaching and the Residue Flotation of a Low-Grade Ni-Cu ...

According to the mineralogy of a low-grade Ni-Cu-PGM sulfide ore, a leaching-flotation process was introduced to process the ore. The leaching tests were focused on temperature, acid concentration, and grinding fineness under normal pressure. Results show that most of Mg and Fe can be effectively leached by 25% H2SO4 with a small amount of copper and nickel loss in leaching solution.