nickel and cobalt ores: flotation - 911 Metallurgist
unsuitable for either direct smelting or hydrometal- lurgical extraction, thus requiring beneficiation. The usual method of nickel extraction from sulfide ores is through the production of nickel matte after enriching the nickel content of the ore. This is com- monly carried out by magnetic separation, flotation, or a combination of...Read More
Copper Nickel Flotation - 911 Metallurgist
Jun 15, 2017 ... The Bureau of Mines investigated the flotation responses of two copper nickel ore samples from the Duluth Complex with the objective of recovering bulk sulfide concentrates. One of the ores studied was taken from a test pit; the other was taken from a test shaft. The samples were quite similar except that...Read More
The selective flotation of pentlandite from a nickel ore - ScienceDirect
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 pyrrhotite. Concentrates have therefore been of moderate grade containing as much pyrrhotite as...Read More
Processing Nickel Ores - Mine Engineer
The ore is then ground to -100 mesh in ball mills. Using wet magnetic separators the magnetic ore is separated (pyrrhotite) and further reduced to -200 mesh in a ball mill. Classification is accomplished with screens and cyclones. The pyrrhotite is then sent to froth flotation cells, and produces a 3% nickel concentrate.Read More
Flotation by Frother Only - Nickel Ore - YouTube
Jul 17, 2010 ... https://www.researchgate.net/publiXinhai... In a more practical approach aging is replaced by pre-aeration. Air flow before flotation enhances the oxidation reaction to form elemental sulphur. This video shows how the froth zone enriched with black sulphide particles with time during air flow. Bubbles in the pulp...Read More
flotation/concentrating nickel ore - YouTube
Dec 12, 2007 ... flotation/concentrating nickel ore.Read More
The selective flotation of pentlandite from a nickel ore | Request PDF
Dec 20, 2017 ... Request (PDF) | The selective flotat... | 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 pyrrhotite. Concentrates have therefore been of...Read More
process flowsheet development for beneficiation of nickel ore
Nov 14, 2007 ... Nickel mineralization in the ore such as pentlandite, violarite, millerite awaruite, and asbolanewas determined. Due to the complex structure of mineralization, a combination of gravity-separation and flotation methods was applied for the concentration of nickel sulphide and oxide ores. A nickel concentrate...Read More
Beneficiation of low-grade weathered nickel sulfide ore for ... - Cetem
from a low-grade (~0.3% Ni) nickel sulfide ore as an alternative row material for metallurgical uses. Processing nickel sulfide minerals by flotation always presents the challenge of obtaining appropriate selectivity between nickel sulfide and other sulfides, such as pyrrhotite, pyrite, and chalcopyrite. Other minerals that can...Read More
Nickel Ore Dispersion Evaluation and Consequences in Flotation ...
Jan 6, 2016 ... Nickel ore dispersion before flotation using different reagents was investigated on a bench scale to improve metallurgical recovery and selectivity. The nickel ore had a content of 0.8 pct nickel and 14.5 pct MgO. A positive linear correlation between MgO and Ni was found. Carboxy methyl cellulose, both...Read More
Froth Flotation in Saline Water - J-Stage
a low grade nickel ore is floated in hyper-saline pro- cess water, at 60,000–80,000 ppm of salts25, 24, 26)). Simi- larly, at Batu Hijau, a copper-gold ore concentrator in. Indonesia, the seawater usage was also accompanied by a reduction in reagent consumption when floating at pH 8.5-9.015). 6. Flotation of inherently...Read More
Froth Flotation - Department of Chemical Engineering
Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product. % Weight ...... Nickel. Molybdenum. Lead. Fluorspar. Feldspar. Effluents. Copper. Coal. Barite. Example Calculation: Problem: As an example of sizing flotation cells, consider the following copper ore: Specific gravity of dry ore = 2.7.Read More
Nickel processing | Britannica.com
Sulfide ores are crushed and ground in order to liberate nickel minerals from the waste materials by selective flotation. In this process, the ore is mixed with special reagents and agitated by mechanical and pneumatic devices that produce air bubbles. As these rise through the mixture, the sulfide particles adhere to their...Read More
role of sodium hexametaphosphate in flotation of a nickel ore
Abstract: In this work, a role of sodium hexametaphosphate (SHMP) in the flotation performance of a nickel ore was studied and mechanism was discussed in detail. The results showed that the presence of lizardite interferes with the flotation performance of pentlandite. The adsorption of SHMP at the lizardite/solution...Read More
A Comparative Study of Kinetics of Flotation of a Copper-Nickel Ore ...
Flotation kinetics was studied for the flotation of Canadian nickel ore using N-hydrocinnamoyl-. N-phenylhydroxylamine (HCNPHA) as the collector. The differential flotation between pentlandite and pyrrhotite of HCNPHA was compared by repeating the experiments with potassium amyl xanthate (PAX). However, the pH for...Read More
Depressants and dispersants
UNIMAX® SD300. A specialty depressant for pyrite gangue, sphalerite and pyrrhotite in lead and copper flotation systems. Diethylenetriamine (DETA). DETA is a polyamine used as a depressant for pyrrhotite and arsenides in copper and nickel mineral flotation. Triethylenetetramine (TETA). Higher ethyleneamines, such as...Read More
Depramin in flotation - Cellulose ethers - AkzoNobel
Jul 10, 2017 ... oped for flotation circuits containing the follow- ing minerals: • Pentlandite and other nickel sulfides. • Copper, lead and zinc sulfides. • Molybdenite. • Wolframite/Scheelite. • Precious metals. • Potash and lithium. Production and Packaging. Depramin can be supplied in 750 – 1000 kg big bags or 25 kg bags...Read More
Nickel Sulphide Waste Ore Processing - CRONIMET Mining
bring about a substantial increase in the grade of its nickel sulphide waste ore. The intention was to produce material with a nickel grade of at least 0.4%, the specified cut-off grade which permits the reprocessing of nickel sulphide ore in the client's flotation plant. Furthermore, through the process, the objective was to reveal...Read More
Surface Charge Characterization and Flotation of an Ultramafic Ni-Ore
Introduction. 21. 1.1. Background. 21. 1.1.1. Nickel ores. 21. 1.1.2. Research objectives. 23. 1.1.3. Particle charging. 23. 1.1.4. Bubble charging. 27. 1.2. References. 29. 2. Literature Review. 32. 2.1. Surface charge characterization: particles. 32. 2.1.1. Electrophoresis. 33. 2.1.2. Streaming potential. 34. 2.1.3. Electro-osmosis.Read More
The mineralogy of pyrrhotite from the Sudbury CCN and Phoenix ...
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...Read More
SUBSTANTIATION OF REAGENT REGIMES FOR FLOTATION OF ...
SUBSTANTIATION OF REAGENT REGIMES FOR FLOTATION OF PGE-BEARING COPPER-NICKEL ORE OF MONCHEGORSK FIELD. There are discussed the variants of flotation regimes of copper-nickel ore containing PGM: flotation with butyl xanthate in a lime medium to produce a rich Cu-Nil concentrate for smelting,...Read More
Nickel: smelting, producing-Metalpedia
Recent advances in hydrometallurgical techniques have resulted in significant nickel purification using these processes. Most sulfide deposits have traditionally been processed by concentration through a froth flotation process followed by pyrometallurgical extraction. In hydrometallurgical processes, nickel sulfide ores...Read More
Pre-concentration of low grade lateritic sulphide nickel ore - SAIMM
Previous mining operations had extracted the higher grade ore (>2%) from both sources for treatment through a conventional crushing, milling and flotation circuit. During the first half of 2006, Tati Nickel embarked on a drilling programme surrounding the Selkirk mine, which has been on care and maintenance since mining...Read More
Nickel Ore processing - Yantai Jinpeng Mining equipment, ore ...
Nickel ore divides into copper sulfide and copper oxide ore , the main process for copper sulfide is flotation , magnetic and gravity separation is the subsidiary process .It is a high technological enterprise that integrated research , manufacture, sales and service . The company has multiple subsidiaries such as Mineral...Read More
Examination of Flotation Reagents Suitable for Nickel ... - UJContent
Abstract. Examination of flotation reagents suitable for a nickel concentrator plant was investigated using nickel sulphide ore. A number of different new reagents were examined for the best suit for the nickel concentrator plant. It was found that more nickel was found on the magnetic particles, which were assumed.Read More
Effect of Flotation Parameters on Recovery of South Africa Nickel ...
This study investigated the effects of flotation parameters on the recovery of low grade nickel sulphide ore. The parameters investigated are the particle size, flotation time, temperature and pH of the pulp. The analyses of the results obtained showed that particle size, pH, and flotation time had significant effects on the...Read More
THE INTERACTION BETWEEN XANTHATE AND SULPHUR ...
Nickel-Copper Ores. 2.2 Use of Sulphur Dioxide as a Flotation Reagent. 6. 2.3 Level of Hydrophobicity at the Surface of. 10. Minerals. 2.4 Sulphur Dioxide Water Chemistry. 12. 2.5 Geology of Nickel Sulphide Ores. 18. 2.5.1 Identification of Copper and Nickel. 22. Sulphide Minerals. 2.6 Electrophysical Properties of Sulphide.Read More
The effect of using pure thiol collectors on the froth flotation ... - SAIChE
Abstract—Sodium ethyl and potassium amyl xanthates are commonly used in bulk and selective froth flotation of pentlandite ores respectively. The xanthate collectors are sensitive to pH and their selectivity in treating complex ores is questionable. With deteriorating nickel sulphide ore reserves more selective collectors...Read More
Unlocking Disseminated Nickel Sulphides Using the CESL ... - Teck
May 26, 2010 ... Smelting and refining of massive sulphides begins with the flotation of ore, typically in the range of. 0.2-2% nickel, to an acceptable concentrate grade of 10 to 20% nickel.[2,11] Concentrate smelting produces a high grade nickel matte which is then refined hydrometallurgically. [2,12] With the majority.Read More
Nickel Ore Mining Process - Mineral Processing,Longwall Coal ...
Nickel ore mainly consists of copper-nickel sulfide ore and nickel oxide ore, beneficiation and processing of both methods is completely different. Copper-nickel sulfide ore beneficiation methods: The most important is the flotation. The magnetic and the gravity separation is usually secondary dressing method. Flotation...Read More
US6679383B2 - Flotation of platinum group metal ore materials ...
In the case of a platinum group metal by-product ore, the platinum group metal content in the ore material feed to flotation can be very low, because the predominant metal value in the ore will be base metal components such as copper and/or nickel. In the case of a platinum group metal primary ore material, the concentrate...Read More
Flotation Collectors | CYTEC SOLVAY GROUP
AEROPHINE®, AERO® and AEROFLOAT® collectors (promoters) are used extensively for the flotation of sulfide minerals including copper, gold, lead, zinc, nickel, ... FLOTATION MATRIX 100 is designed to deliver a range of measurable results by taking into consideration the dynamic interaction of the ore body and plant...Read More
reducing the magnesium oxide content in trojan's nickel final ...
The best reagent suite was determined from laboratory flotation test results using the CMC and guargum reagents from different suppliers as well as different collector combinations. Reagent suites need to be determined for specific ores, since all nickel ores differ in mineralogy. The floatable gangue minerals in nickel ores...Read More
Treatment of Platinum Flotation Products
Our investigations involved flotation concen- trates of low-sulfide platinum-bearing chrome ores from South Africa. The ore had the compositions shown in the Table. An X-ray microscopy study of the phase composition of the flotation concentrate showed that nickel is present as pentlandite and copper as chalcopyrite.Read More
Modelling Of Flotation Processes By Classical Mathematical ...
Dec 30, 2015 ... Natarajan R., Nirdosh I., 2006. A Comparative Study of Kinetics of Flotation of a Copper-Nickel Ore by N-Hydrocinnamoyl-N-Phenylhydroxylamine (HCNPHA) Vis-À-Vis Potassium Amyl Xanthate (PAX). Proceedings of the International Seminar on Mineral Processing Technology, Chennai, India, p. 236-242.Read More
Nonferrous Metals - The National Lime Association
In the recovery of mercury from cinnabar, lime is used to remove sulfur. Lime is also used in the flotation of zinc, nickel, and lead bearing ores. It is often used as a conserving agent to assist in the recovery of xanthates, another flotation chemical. Lime is also extensively used in the recovery of gold and silver in the cyanide...Read More
Gasmet Application Note
OVERVIEW. The mining industry uses chemicals as 'flotation' agents in the recovery of sulphide minerals containing metallic elements (e.g., copper, nickel, silver, gold) from ore slurries. Sodium Ethyl Xanthate (SEX) is one of most common flotation agents, and it decomposes to Ethanol and Carbon Disulfide / Carbonyl...Read More
optimization of flotation parameters for benefication of a ...
Nov 23, 2016 ... Keywords: molybdenum ore, depressant, collector, frother, flotation kinetics. Introduction. Molybdenum is a strategic metal used in steel industry for facilitating thermal operations and increasing mechanical properties. Additionally, it can supersede precious elements such as nickel, wolfram or rare elements...Read More
Flotation Reagents - suppliers, manufacturers, exporters
It exhibits specific properties for separating silver, copper, lead and activated zinc sulfide minerals and difficult polymetallic ores. The collective performance of Dithiophosphate BA is weak for the pyrite and magnetizing pyrite, but is strong for the galena in the weak base ore pulp. It is also useful in the flotation of nickel and...Read More
Factors Affecting the Upgrading of a Nickeliferous Limonitic ... - MDPI
Sep 20, 2017 ... the oxidic nickeliferous laterite deposits, as the global nickel sulphide resources are rapidly becoming more difficult to access. In comparison to sulphide ores, where the nickel-containing mineral can be readily concentrated by flotation, nickel laterites are not amenable to significant upgrading, due to.Read More