flotation nickel rougher
Flotation of nickel from this ore  is quite difficult and requires very high collector additions. In contrast, nickel flotation from massive ores, such as Voisey Bay (Canada) requires very little collector  due to the fact that nickel-bearing minerals are relatively floatable.
The froth, enriched in copper and molybdenum, is removed from the flotation roughers and scavengers. This enriched material is now called the rougher concentrate or cleaner feed. The combined rougher-scavenger concentrate may be 5% Cu and 0.06% Mo (a concentration factor of 3 to 10 times is typical).
Jun 06, 1972· Following the addition of the frother I found that the sulphides float in the rougher circuit extremely rapidly using a rougher flotation time of 7 to 12 minutes. The normal rougher flotation time in the flotation of the nickel mineral pentlandite in current conventional circuits is 45 minutes.
04 Nickel Flotation and Regrind. CS060 - 1-FC-021 - Nickel Rougher Flotation Cell 1. CS061 - 134-FC-022 - Nickel Rougher Flotation Cell 2. CS062 - 134-FC-023 - Nickel Scavenger Flotation Ce... CS063 - 134-FC-024 - Nickel Scavenger Flotation Ce... CS064 - 134-FC-025 - Nickel Scavenger Flotation Ce... CS065 - 135-FC-026 - Nickel Cleaner Flotation ...
The new StackCell™ flotation technology was developed to specifically target this particle size range, and was tested at pilot plant scale at Mt Keith Nickel Concentrator. The streams tested, Slimes Rougher Tailings and Fines/Slimes Cleaner Tailings, represent 21% and 11% of the total nickel …
PDF | This study aimed to investigate the sulphidization-flotation of nickel oxide. Sulphidization was conducted before froth flotation to convert the surface of nickel oxide to nickel sulphide.
Flash flotation was developed several decades ago, with the first commercial installation of this technology being at Hammaslahti concentrator in Finland in 1982 (Kallioinen and Niitti, 1985). This was a relatively modest sized SK80 cell producing final grade copper concentrate. Since that time, the ...
Froth flotation circuit design and basic testwork requirements Froth flotation is a very important mineral concentration process that is used to recover a vast array of different minerals containing valuable commodities such as copper, lead, zinc, nickel, molybdenum, tungsten, …
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.
1 1 Froth Flotation – Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a
The non magnetic ore is sent to a series of rougher, cleaner flotation cells, and produces a 31% copper concentrate. The tailings from these cells is sent to another flotation cell, to recover the nickel, and the concentrate is combined with the 3% nickel concentrate to produce a 12% nickel concentrate.
Optimisation of Reagent Addition during Flotation of a Nickel Sulphide ore at the Nkomati Mine Concentrator Prepared by: Riyard Kahn (783709) Supervised by: Prof Vusumuzi Sibanda 28 January 2017 A dissertation submitted to the faculty of Engineering and the Built Environment, University
The bench-scale flotation tests were conducted using a laboratory scale Denver flotation machine. At the first stage, the effect of particle size, pH, types and amounts of collector, depressant, and frother were investigated. The ore sample of 1 kg was used for each flotation test. The flotation tests comprised of four-stage rougher at
Sep 12, 2012· Copper is recovered by Froth Flotation in the mini float plant. Standard rougher and cleaner circuit. Nice clean metallurgy from the 1% copper rock.
Figures 1 and 2 show how nickel cumulative recovery and grade varied with time during the flotation for the varying dosages of the copper sulphate added to the pulp. The overall consideration shows that at 15 g/ton copper sulphate dosage, nickel recovery improved clearly by a maximum of about 6 % without grade compromise.
Flotation is widely used to separate valuable minerals from the rock and fine coal particles from clay, silt, shale, and other ash-producing matter. It is usually preceded by crushing and finely grinding the ore to liberate valuable particles in a host rock, and may be followed by metallurgical processes.
The existing Section 1 bulk rougher lines consist of three parallel lines of 18 cells per line with a total flotation capacity of approx. 1529 m 3.Section 2 bulk rougher stage also consists of three parallel lines, two of the lines equivalent to the flotation lines in Section 1 and one line consists of 13 cells with a net volume of 38 m 3 resulting in a total flotation capacity for the full ...
60% of the nickel was recovered during the first five minutes of the tests. Hence, reducing the residence time of the rougher flotation bank would reduce MgO recovery into the concentrates without adversely affecting the nickel recoveries. Plant survey results showed that the scavenger bank feed that was deslimed, had less finer
CONTINUOUS FLOTATION TESTING TO RECOVER COBALT FROM MISSOURI lEAD ORES By W. L. Cornell,1 A. M. Wethington,2 D. C. Holtgrefe,3 and F. H. Sharp1 ABSTRACT The Missouri lead ores are the only domestic sources of cobalt presently being mined and processed for other materials. They represent the best short-term solution for
better nickel grade and recovery in both rougher and cleaner flotation. Keywords: ultrafine particle, flotation, slime coating, dispersion, saline water, triblock ... flotation of nickel sulphides ...
Gomes-Sebastiaõ, G A, Hearne, Z, Lam, S, van der Spuy, D, Thompson, M and Vines, N, 2018. Nova copper-nickel project optimisation of the copper rougher-scavenger circuit through advanced measurement and control, in Proceedings 14th AusIMM Mill Operators' Conference 2018, pp 77–92 (The Australasian Institute of Mining and Metallurgy: Melbourne).
Read about the Leinster Nickel Operations here. ... coarse roughing, scavenging and cleaning. New fines rougher tanks cells, reuse existing cells for fines scavenging, cleaning. ACC consisted of new coarse cleaner flotation cells banks being added. ... Evaluating existing flotation capacity to suit the SSF flowsheet and selecting new duties for ...
2. 2. Flotation Procedure 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
factor to promote floatability of minerals in the flotation process. Figure 5 Nickel grade in the Cleaner Final Tailings Plant personnel set a threshold for the Cleaner tails nickel grade to not exceed 40% of the nickel grade in the feed after the estimated residence time of material between Rougher feed and Cleaner tails has elapsed.
A process for beneficiating a finely ground ore containing sulfide minerals of copper and nickel by selective flotation to produce a copper concentrate and a copper-nickel concentrate comprises pulping the ore with water to form a slurry, conditioning the slurry with an aqueous solution of SO 2 (H 2 SO 3 ) equivalent to from about 2 to about 4.5 pounds of SO 2 per ton of dry ore for a time ...
A total of five rougher and four cleaner flotation tests were conducted. The intent of the flotation testing was to produce a high grade mixed cobalt-nickel concentrate, focussing on maximum cobalt recovery. In terms of rougher flotation, 1kg charges of the individual composite sample EC-1 was diluted to 50wt%
One stage rougher reverse flotation resulted in 0.5% nickel grades (at 33% recovery) which is not commercially acceptable. Quast et al. (2015a) have reviewed the application of various techniques of pre-concentration of nickel laterite ores prior to hydrometallurgical or pyrometallurgical process. They concluded that the complex mineralogy of ...
The classifier was operated to deliver an overflow containing 35 pct solids to give a primary grind of 65 pvt minus 325 mesh (table 9). Pulp from the classifier overflow was pumped to the conditioner and then to rougher flotation. Initial Copper Nickel Flotation Results
For more than a century now, flotation has been at the heart of the mineral processing industry. In this month's SPOTLIGHT FEATURE ARTICLE, direct from the November issue of INTERNATIONAL MINING magazine, John Chadwick examines new technologies and applications from some of the key players in mineral flotation, a technique that is so important to the global industry.
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.