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SELECTIVE FLOTATION OF ULTRAFINE NICKEL …

The flotation of nickel sulphides is usually difficult due to low surface hydrophobicity compared to other sulphide ... about 0.6% Ni grade was in the feed (Peng and Seaman, 2011). After …

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Selective sulphidation and flotation of nickel from a nickeliferous

The flotation results indicate that the flotation process is selectively upgrading the nickel sulphides, with the highest-grade material achieved at the beginning of the test. Then, …

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Principles and practice of sulphide mineral flotation

Electrochemical flotation of sulphides: reactions of chalcocite in aqueous solution. International Journal of Mineral Processing, vol. 12, 1984, p. 55–72. Article Google Scholar Richardson …

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Full article: The Direct Leaching of Nickel Sulfide Flotation

The Ni is subsequently recovered from the leach liquor by precipitation using sodium sulfide (Na 2 S) to produce a nickel sulfide precipitate grading 45–65% Ni, which is …

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(PDF) Investigation of flotation parameters for copper recovery …

This study aimed to recover cobalt using tailings of the Küre flotation plant, which were determined to contain 0.17% Co. Flotation tests were conducted on samples taken from …

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The Effect of Oxidation on the Flotation Behaviour of …

Pn (-36per cent Ni), chalcopyrite, Cp (-34.5per cent Cu) and nickeliferous pyrrhotite, Po (0.3-1.2 per cent Ni in a solid solution form) as the principal sulphides along with pyrite and other …

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Flotation of Nickel-Copper Sulphide Ore: Optimisation of …

In this study, the robust Taguchi experimental design method was used to determine the optimum conditions for the flotation of nickel, copper and cobalt from a nickel …

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Selective sulphidation and flotation of nickel from a …

The flotation results indicate that the flotation process is selectively upgrading the nickel sulphides, with the highest-grade material achieved at the beginning of the test. Then, …

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Development and implementation of a new flowsheet for …

Using a new patented process for removing oxidation products from the surfaces of sulphides, the flotation of ultrafine nickel minerals has been raised markedly in both bench …

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Development and implementation of a new flowsheet for the flotation …

Using a new patented process for removing oxidation products from the surfaces of sulphides, the flotation of ultrafine nickel minerals has been raised markedly in both bench …

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Optimisation of Reagent Addition during Flotation of a …

addition on flotation performance of a nickel sulphide ore. The objectives of the study were to: 1. develop an understanding of the effects of collector and depressant dosage, …

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Oxidation of Complex Ni-Cu Sulphide Ores and its

Pentlandite [(Fe,Ni)9S8] is the primary source of nickel and an important carrier of palladium and rhodium. ... Flotation of fresh nickel-copper sulphides was compared with that of …

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Flotation of Nickel-Copper Sulphide Ore: …

In this study, the robust Taguchi experimental design method was used to determine the optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The...

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The Direct Leaching of Nickel Sulfide Flotation …

The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched phase called matte, and further...

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The Effect of Oxidation on the Flotation Behaviour of …

In this paper, the flotation behaviour of nickel-copper ores processed in the Sudbury area is discusse~ with emphasis on the effect of oxidation on individual minerals, pnmarily pyrrhOlite. …

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Flotation Chemistry of Complex Sulphide Ores

components, taken singly or jointly influence flotation of sulphides. In this work, the influence of main process water components of calcium and sulphate on chalcopyrite, galena, sphalerite …

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Differential flotation of chalcopyrite, pentlandite and …

A 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 …

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The Direct Leaching of Nickel Sulfide Flotation Concentrates …

The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched phase called matte, …

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Humate Agents based on Oxidized Brown Coal in the Flotation …

Abstract—The flotation of impregnated copper-nickel ores is studied using humate agents as depressors, which are obtained from oxidized brown coal by extraction with alkaline …

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Ni/Co–Cu Sulphide Ores, Key Contributors to Sustainability …

Nickel-copper sulphide ores in Canada are in the category of complex sulphides since they are available with large quantities of pyrrhotite which is undesirable from an …

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Full article: The Direct Leaching of Nickel Sulfide …

The extraction of nickel from sulfide ores typically commences with comminution and flotation to produce a sulfide concentrate, which is subsequently smelted and pyrometallurgically refined (termed converting) to produce a …

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Full article: The Direct Leaching of Nickel Sulfide Flotation

The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched phase called matte, …

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Selective depression of millerite (β-NiS) by polysaccharides …

The presence of a nickel sulphide mineral – millerite (β-NiS) has a significant impact on the Cu/Ni flotation separation efficiency in the plant operations.

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Full article: The Direct Leaching of Nickel Sulfide …

The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched phase called matte, and further refined to produce pure Ni products …

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Effect of Grinding Medium Type and Collector Addition Site on Flotation

The effects of the grinding method and grinding medium on the flotation performance of sulphide minerals have been reported in many literatures. In the current …

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Humate Agents based on Oxidized Brown Coal in the …

Abstract—The flotation of impregnated copper-nickel ores is studied using humate agents as depressors, which are obtained from oxidized brown coal by extraction with alkaline …

WhatsApp: +86 18221755073

Full article: The Direct Leaching of Nickel Sulfide Flotation

The extraction of nickel from sulfide ores typically commences with comminution and flotation to produce a sulfide concentrate, which is subsequently smelted and …

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The selective flotation of pentlandite from a nickel ore

In this research a procedure has been devised which rejects much of the pyrrhotite while maintaining the necessary level of talc rejection. In batch tests on an ore containing …

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Mineralogy and Innovative Flash Flotation Separation of Cu …

Intimate knowledge of the mineralogical assembly of the Yushui complex ore rich in Cu, Pb, and Ag is essential if efficient separation processing is to be conducted. With the aid …

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NICKEL AND COBALT ORES: FLOTATION

Most of the world's nickel is extracted from the mineral pentlandite, (Ni, Fe)9S8, which frequently oc-curs in ores containing predominantly pyrrhotite and various non-sulRdes, some of which …

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