flotation of nickel ores

NICKEL AND COBALT ORES: FLOTATION

2016-6-7 · III/NICKEL AND COBALT ORES: FLOTATION 3493. Figure 5 Flotation selectivity in the separation of pentlandite from pyrrhotite using sulfur dioxide and diethylenetriamine with sodium isobutyl xanthate (pH+9.2, 25 g t 1 Dow froth!250). (Reprinted with

Nickel flotation for High Talc Ores - strategicmet

2019-4-1 · Flotation of low grade nickel sulfide ores into a concentrate suitable for smelting, and at acceptable nickel recovery, can be challenging. Alteration of the gangue minerals can mean talc is present in considerable quantities. Talc floats naturally and can be very difficult to depress without significant nickel losses.

Flotation of Nickel-Copper Sulphide Ore: Optimisation of ...

2020-1-8 · All the flotation test-work was done using the Denver laboratory machine with a 1.5l stainless steel flotation cell. The required mass of nickel-copper sulphide ore material ground to 70% passing 75 µm was weighed and placed in the flotation cell. This was followed by the addition of distilled water to about 60% of the cell volume before the required volumes of 1% solutions of the collector; SIPX

Chapter 16: Flotation of Nickel and Nickel Copper Ores ...

There are more than 45 different nickel minerals, but only a few are of economic importance. Table 16.1 lists some of the most important nickel minerals. Nickel, in various ores can also be found in other minerals, such as pyrrhotite and various cobalt minerals as an exsolution in isomorphic phases.

Nickel and Cobalt Ores: Flotation - ResearchGate

Collectorless flotation was studied for both noritic and serpentinic nickel ores using a batch flotation technique. The only variable that was modified in the tests was pH. Floatability of all ...

Challenges in processing nickel laterite ores by flotation ...

2016-6-10 · It should be added that segregation of laterite ores prior the flotation process has shown some improvement in upgrading nickel. The segregation process relies on the addition of calcium chloride or sodium chloride and carbon allowing the formation of nickel and iron chlorides at temperatures between 900 and 1150 °C.Iwasaki et al., (1961) and Nagano et al., (1970) have reported nickel ...

FLOTATION OF LATERITIC NICKEL ORES - WESTON D,CA

A process for the beneficiation of nickel bearing laterite ores by means of froth flotation wherein a dispersed pulp of the ore is conditioned with a fatty acid type collecting agent either at an elevated pH to produce, following flotation, an enriched flotation tailing or at a reduced pH to produce, following flotation, an enriched flotation concentrate.

FLOTATION OF COPPER-NICKEL SULFIDE ORES - DAVID

The normal rougher flotation time in the flotation of the nickel mineral pentlandite in current conventional circuits is 45 minutes.

Oxidation of Complex Ni-Cu Sulphide Ores and its ...

When using oxygen as a depressant in the flotation of nickel sulfide ores, however, it is important to sufficiently depress pyrrhotite without compromising the recovery of pentlandite (Wells, 1997 ...

The Effect of Oxidation on the Flotation Behaviour of ...

2016-6-14 · nickel in these ores while containing over 75 per cent of the sulphur. Therefore, efforts to reduce sulphur dioxide emissions from the smelting process have included the rejection of pyrrhotite in the milling stage as an alternative means of treatment. In the flotation process, a number of reagents are seen as a means ofdepressing pyrrhotite.

Nickel flotation for High Talc Ores - strategicmet

2019-4-1 · Flotation of low grade nickel sulfide ores into a concentrate suitable for smelting, and at acceptable nickel recovery, can be challenging. Alteration of the gangue minerals can mean talc is present in considerable quantities. Talc floats naturally and can be very difficult to depress without significant nickel losses. High talc bearing ores have often been considered untreatable.

Flotation of Fully Liberated Low Grade Copper-Nickel Ore

2021-3-21 · entrainment of nickel in copper concentrate and the slime coating of gangue minerals on the nickel particle surfaces. Keywords: mineralogy; selective flotation; sensors and measurements; hydrodynamics; data processing 1. Introduction Complex and low grade sulfide ores are difficult to process due to their fine-grained and disseminated nature.

Nickel - qxdali

Nickel ores are divided into nickel sulfide ores and nickel oxide ores. Flotation is the most important method for processing copper-nickel sulfide ores, while magnetic separation and gravity separation are usually auxiliary processing methods.

Effect of Oxygen and Micro-Cracking on the Flotation of ...

2017-2-4 · flotation calcium ions improves the absorption of xanthate, especially on the nickel and copper sulphide. The quality of process water can have a significant role in flotation of nickel ores. In the study conducted by [11], it was found that the calcium and thiosulphate ions, usually present in process

Oxidation of Complex Ni-Cu Sulphide Ores and its ...

When using oxygen as a depressant in the flotation of nickel sulfide ores, however, it is important to sufficiently depress pyrrhotite without compromising the recovery of pentlandite (Wells, 1997 ...

Copper-Nickel ores - Danafloat

Copper-Nickel ores Pentlandite ((Ni,Fe)S) is the most important nickel sulphide mineral and is often associated with nickel-containing pyrrhotite and chalcopyrite. Gangue minerals can include talc and other troublesome silicates which must be dispersed and/or depressed.

Influence of sulfur-containing ions on selective flotation ...

1. During the reorganization of a beneficiation plant with water recycling, a close correlation between the selectivity of flotation of complex copper-nickel sulfide ores and the sulfoxide ion concentration in the recycled water and pulp was found. This necessitated the control of the ionic composition of the pulp. 2. Correction of the ionic composition of the pulp should be achieved by adding ...

A Comparative Study of Kinetics of Flotation of a Copper ...

2012-11-30 · beneficiation of nickel ores. Flotation of a Canadian nickel ore by N-hydrocinnamoyl-N-phenyl hydroxylamine (HCNPHA), also called N-phenyl hydrochuiamohydroxamic acid (see Figure 1 for structure) and the comparison of performance of the synthetic collector with that of potassium amyl xanthate (PAX) are reported here.

Examination of Flotation Reagents Suitable for Nickel ...

S.R. Raolds) Processing of complex ores, Pergamon, pp 157-168, 1989 [6] V Kirjavainen, N Schreithofer, K Heiskanen. Effect of ca lcium and thiosulfate ions on flotation selectivity of nickel-copper ores, Mineral Engineering. 2001, 14: 435-345.

Flotation Guidebook

2021-6-24 · 6.7 Nickel Ores 26 Planning and Analysis of Flotation Reagent Plant Trials Using the Paired t-test 27 Xanthate Determination Procedures 33 8.1 Solid Xanthate Analysis – Titration Method 34 8.2 Solution Xanthate Analysis – Titration Method 35 8.3 UV-Vis Method 36 Environmental – Concentrate Odour Issues 37 Useful Flotation Calculations 39

[PDF] NICKEL AND COBALT ORES : FLOTATION | Semantic

Most of the world’s nickel is extracted from the mineral pentlandite, (Ni, Fe)9S8, which frequently occurs in ores containing predominantly pyrrhotite and various non-sulRdes, some of which contain magnesium (Table 1). The nickel content in such sulRde ores is generally low (0.2}3%) and varies from place to place in the same deposit. The low nickel content of the present-day nickel sulRde ...

Flotation of Fully Liberated Low Grade Copper-Nickel Ore

2021-3-21 · entrainment of nickel in copper concentrate and the slime coating of gangue minerals on the nickel particle surfaces. Keywords: mineralogy; selective flotation; sensors and measurements; hydrodynamics; data processing 1. Introduction Complex and low grade sulfide ores are difficult to process due to their fine-grained and disseminated nature.

Method of flotation enrichment of sulphidic copper-nickel ores

The invention relates to the beneficiation of minerals and can be used in the processing of sulphide copper-Nickel ores. There is a method of enrichment of sulphide copper-Nickel ores, comprising grinding the original ore to a particle size of 80-83% of the content of the class less of 0.045 mm, consecutive 3-stage flotation

A Comparative Study of Kinetics of Flotation of a Copper ...

2012-11-30 · beneficiation of nickel ores. Flotation of a Canadian nickel ore by N-hydrocinnamoyl-N-phenyl hydroxylamine (HCNPHA), also called N-phenyl hydrochuiamohydroxamic acid (see Figure 1 for structure) and the comparison of performance of the synthetic collector with that of potassium amyl xanthate (PAX) are reported here.

The beneficiation process of nickel ore,copper-nickel ...

2020-9-24 · When flotation of copper sulfide nickel ores, collectors and foaming agents for flotation of copper sulfide minerals are often used. A basic principle for determining the flotation process is that it is better to allow copper to enter the nickel concentrate, and to avoid nickel entering the copper concentrate as much as possible.

Flotation Guidebook

2021-6-24 · 6.7 Nickel Ores 26 Planning and Analysis of Flotation Reagent Plant Trials Using the Paired t-test 27 Xanthate Determination Procedures 33 8.1 Solid Xanthate Analysis – Titration Method 34 8.2 Solution Xanthate Analysis – Titration Method 35 8.3 UV-Vis Method 36 Environmental – Concentrate Odour Issues 37 Useful Flotation Calculations 39

(PDF) The mineralogy of pyrrhotite from Sudbury CCN and ...

The mineralogy of pyrrhotite from the Sudbury CCN and Phoenix nickel ores and its effect on flotation performance Megan Becker (i), Dee Bradshaw (ii) and Johan de Villiers (iii) (i) Centre for Minerals Research, University of Cape Town, South Africa (ii) Julius Krutschnitt Mineral Research Centre, University of Queensland, Australia (iii) Department of Materials Science & Metallurgical ...

US4460459A - Sequential flotation of sulfide ores - Google ...

A sequential flotation process for the recovery of high-grade concentrates of copper, lead and cobalt-nickel from sulfide ores is provided. A primary grind ore pulp is conditioned with SO 2 as H 2 SO 3 under intense aeration, and the conditioned pulp subjected to sequential flotation, with regrinding and conditioning of a copper rougher concentrate obtained in the first flotation step for copper.

Oxidation of Complex Ni-Cu Sulphide Ores and its ...

2013-7-18 · Oxidation of complex nickel-copper sulphides is a serious concern in their flotation. This paper addresses this issue through a study of batch tests using stockpile samples and fresh samples oxidized in the lab.

separation of nickel from nickel ore in ukraine price

2021-8-14 · NICKEL AND COBALT ORES FLOTATION. enriching the nickel content of the ore This is commonly carried out by magnetic separation Sotation or a combinationof both after the ore is comminuted to below 200 m in size The enrichment depends upon the degree of rejection of the other sulRde and nonsulRde gangue The maximum grade of nickel achieved by ...