Process for the selective separation of nickel sulphide minerals in the form of pentlandite from ores containing iron sulphide minerals in the form of pyrrhotite. The process involves froth flotation of an aqueous pulp of the ore the pH of the pulp is maintained in the range 3 to 7, preferably 4 to 6.
Flotation behavior of nickel sulfide ore in a cyclonic flotation column 775 In the flotation system, the density of mineralized bubbles (m) is much smaller than that of the fluid (), and generally speaking, the density of particles (p) that cannot adhere to bubbles is much higher than that of the fluid ().
A method of concentrating nickel sulfide ores by flotation which comprises subjecting the ore in the form of a pulp to a flotation process in the presence of an effective quantity of a flotation collector comprising a dithiocarbamate compound corresponding to the formula SPC1 Wherein X is oxygen or sulfur and R is hydrogen or a hydrocarbon radical containing from 1 to
Sep 13, 2015 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, and its interactive effects, on flotation performance and 2. determine the effect of stage dosing collector and depressant on flotation performance.
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
The flotation characteristics of a nickel sulphide transition ore are investigated by laboratory tests with regard to two aspects, the recovery of magnesia bearing
A hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate. The process involves forming a slurry of the sulfidic flotation concentrate in an acid solution, and subjecting the slurried flotation concentrate to a chlorine leach at atmospheric pressure followed by an oxidative pressure leach.
History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed importance as a versatile process for
Mar 18, 2021 Through flotation of Copper-Nickel Sulfide Ores, the copper-nickel mixed concentrate with copper grade of 4.43% and recovery of 88.18% is obtained. In the pH range of 212, the surface of ...
Nickel Ore processing Yantai Jinpeng Mining equipment. 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 .
Jun 01, 2015 The low-grade Ni/Cu sulfide ore (containing talc) for batch flotation and industrial flotation tests was also from the Danba Nickelcopper Mine. The multi-elemental chemical analysis of the ore was conducted by Atomic Adsorption Spectroscopy (AAS) and Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES), and the analysis results ...
Differential flotation of bulk sulfide concentrates from Duluth gabbro into copper and nickel concentrates could be implemented by first destroying the hydrophobic coating with ozone and then by recovering the copper concentrate with a copper-selective collector. A number of parameters involved in the use of ozone, such as the sequence and the conditioning time of
In hydrometallurgical processes, nickel sulfide ores undergo flotation (differential flotation if Ni/Fe ratio is too low) and then smelted. After producing the nickel matte, further processing is done via the Sherritt-Gordon process. First, copper is removed by adding hydrogen sulfide, leaving a concentrate of only cobalt and nickel. Then ...
Oct 05, 2021 As expected, 100% of the nickel recovery in the flotation concentrate reported to the Standard Concentrate product because pentlandite was the primary nickel sulfide mineral in
the flotation recovery of Ni, Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH, collector dosage, % solids and depressant dosage at different levels was investigated. Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals ...
gangue minerals, thus leading to nickel loss. Flotation Practice in Nickel Sulde Deposits Nickel sulRde minerals such as pentlandite can, in general, be separated from their gangue by Sotation using a thiol group of collectors like xanthates and alkyl dithiophosphates in the presence of variety of activators, depressants and dispersants. Since ...
a process for the flotation of nickel and copper sulphide minerals from talcose bearing ores comprising wet grinding the ore to produce an alkaline pulp thereof in a suitable state of subdivision for flotation wherein at least one alkaline reagent present is soda ash or ammonium hydroxide and the ph is within the range of from about 8 to 10.5
History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique.
pulp and the flotation response was investigated through a series of rheological and batch flotation tests. The nickel-sulfide ore from the Mt. Keith plant (Western Australia) was used for the tests. It is a low-grade nickel sulfide ore which is characterized by complex mineralogical composition with a large content of serpentine minerals.
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 recovery of nickel sulphide ore.
The Nickel West Mount Keith Operation (NMK) consists of a large, low grade disseminated nickel sulfide orebody treated by crushing and two staged closed circuit grinding (SAG Ball Mills), followed by a complex split-size rougher, scavenger and cleaner flotation circuit (Figure 2).
copper and nickel sulfides and separates them in the flotation processing stage. Separate copper concentrates and nickel concentrates are then subjected to indi vidual. selter-refinery. stages to produce the respective metal products. Bulk flotation of a combined copper-nickel sulfide concenterate is the benefi ciation method used in the ...
Today, the smelting process of copper-nickel sulfide ore is mainly introduced. Method of stone selection Flotation is the most important method for the beneficiation of copper-nickel sulfide ores, while magnetic separation and gravity separation are
Nickel sulfide deposits contain high levels of magnesium silicate gangue minerals (MgO) and can be difficult to process with conventional flotation and smelting technologies. MgO is hydrophilic, which interferes with flotation of sulfide minerals, and reduces flotation recovery. In China, the Jinchuan Group Go. Ltd has 400 Mt of low-grade ...
Jul 09, 2019 (5) Copper-nickel ore Copper minerals and nickel, such as nickel sulfide ore and nickel-containing pyrite and pyrrhotite. (6) Copper-cobalt ore Copper mineral and cobalt-containing pyrite and other cobalt minerals. (7) Arsenic sulfide copper ore The ore has a high content of arsenic, which is mainly in the form of arsenopyrite. Flotation ...
Mar 22, 2016 The optimum nickel and pentlandite recovery was achieved at particle size of 64.73 m milled for 1.5 h, pH of 9.65 and using a new flotation cell. Also, SEX collector recovered more nickel and pentlandite contents compared to PAX and SIBX collectors when optimum parameters of particle size, milling time, pH and flotation cell were considered.
Oct 05, 2021 As expected, 100% of the nickel recovery in the flotation concentrate reported to the Standard Concentrate product because pentlandite was the primary nickel sulfide mineral in this sample. The nickel concentrate grade of 13% is 1% higher than our target 12% grade for this product and the cobalt grade was 0.9% (no target in PEA).
Abstract Nickel is an extremely important strategic metal.In China,nickel ore resources mainly exist as low grade copper and nickel sulfide ore,which contains a lot of magnesium silicate minerals such as serpentine,chlorite and talc.These minerals seriously disturb the flotation of copper and nickel sulfide ore and increase MgO content of flotation concentrate and bring
Apr 24, 2020 Therefore, the flotation method is commonly used to concentrate copper and nickel sulfide ore. The nickel processing methods are as follows 1. Direct (or parts) preferential flotation method. This nickel processing method is the copper concentrate alone, used in the case of high copper content.
Jul 16, 2021 The common copper-nickel sulfide extraction methods include the flotation method, magnetic separation method, and gravity separation method, among which the flotation method is the main copper-nickel sulfide ore extraction method, and the flotation reagents often adopt the collector and foaming agent to float the copper sulfide minerals. The ...
Copper- Nickel Ore Flotation Process. When process copper-sulfide nickel ore, collector and frother will be used in order to better results. A basic principle of copper-sulfide nickel ore process is that it is better to let copper assimilate into nickel ore rather than the opposite. For it is easier to recovery cooper from nickel concentrate.
The extraction from the sulfide ores is a huge process involving froth floatation, smelting and electrolysis. Firstly, the sulfide ores are crushed and ground to liberate nickel containing minerals from the waste material by floatation process where the ore is mixed with certain reagents and disturbed by mechanical devices that produce air bubbles which rise above the mixture and
Nickel sulphide ore is mined at our open-cut and underground operations in the Northern Goldfields in Western Australia before it is crushed and concentrated at two large nickel concentrators using nickel sulphide flotation technology. The nickel concentrate is then dried and railed to the Kalgoorlie Nickel Smelter where its continuously fed ...
Used as the collector for the flotation of non-ferrous metal mineral which need strong collector but no selectivity. It is a good collector for the flotation of oxidized sulfide ore or copper oxide and zinc oxide (vulcanized by the sulfiding agentas well as copper-nickel sulfide ores and gold bearing pyrite ores and so on.
Sep 19, 2021 For settling slag, the nickel and copper contents are 0.88% and 0.31%, respectively. In the chemical phase, the proportion of nickel sulfide and nickel metal is 70.23%, and that of copper sulfide and copper metal is 79.66%. It is not easy to recover these metals using direct flotation.
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