Synopsis. This Paper Presents Both The Fundamentals Of Sulphide Mineral Flotation And The Practical Aspects Of Sulphide Ore Flotation. The Fundamental Aspects Of The Flotation Of Sulphide Minerals Both In The Absence And Presence Of Thiol Collectors Are Discussed In Relation To Their Crystal Structure, Surface Chemistry And Electrochemical Characteristics.
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Once reagents are added to a PGM and sulphide ore the ore responds to the flotation process for the duration of the test to produce recoverygrademasstime relationships. Staged addition of reagents can be tested as an option as opposed to being a necessity. For oxide ores the addition of a sulphidising reagent is a necessity. However, the ...
The flotation of the polymetallic sulfide ore of copper, lead, and zinc is generally suitable at alkaline pH conditions. Lime and soda are common agents used in adjusting the pH of the slurry. These agents were used and the effects of
Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON-REFEREED PAPER MARCH 2005 201 Figure 1The final cumulative copper recovery vs. collector dosage obtained with C2-X, di-C2-DTP and di-C2-DTC in the flotation of the Okiep copper ore
More recently, it was reported that when using a dithiophosphate collector, 90 of the copper sulphide minerals and 93 of carrollite could be recovered from mixed oxide sulphide ore at ambient pH in a laboratory batch flotation experiment. Final concentrate grades after the sulphide flotation stage were 12.2 Cu and 0.38 Co .
Lead-zinc sulphide ore contains lead sulphide galena, and zinc sulphide sphalerite. In the first flotation stage, galena is rendered hydrophobic with an organic collector such as xanthate, while sphalerite is kept from floating by depressants, and in the second flotation stage, activator was used to activated zinc flotation.
Once reagents are added to a PGM and sulphide ore the ore responds to the flotation ... adequately describe the recovery-time curve and the ores flotation characteristic is four timed at 1, 3, 10 and 20 minutes. ... but only a 40 minute float would be suitable for an ore with a mass-time curve in Figure 8 and the bottom curve of Figure 10 ...
Sulfide Ores. Sulphide ores were mostly created by i the intrusion of molten magma from the mantle into the crust of the earth and ii the formation of localized metal-rich sulphide ore bodies by sequential solidification andor hydrothermal leaching and precipitation. Chatear en l nea Lime use and functionality in sulphide mineral flotation
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.
The flotation collector compounds as defined herein are particularly suitable for use in standard flotation processes to concentrate copper sulfide and other like minerals from sulfide ores. In such processes, a pulp is first prepared by wet grinding the ore to a suitable size with or without a pH modifier.
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 to be mostly pyrrhotite.
Sulphide ores that are mined for nickel and cobalt typically contain 1.53 Ni and 0.050.1 Co. ... This last method is particularly suitable for water-soluble sulfides, though frequently it is the hydrate that crystallizes, ... Flotation of sulphide concentrate as described above. Flotation of separate oxide concentrate as described below
Jul 09, 2019 Copper Sulfide Ore and Flotation Process. 2019-07-09 2019-07-09 by JXSC Mining. 1 Types of copper sulfide ore 1 Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are
The process is best suitable for sulphide ores. The process is based on different wetting characteristics of the ore and gangue particles with water and pine oil. The ore is wetted by oil and impurities are wetted by water. Ore particles are adsorbed on potassium or sodium ethyl xanthate as a collector and come at the surface along with the ...
Jul 12, 2019 It is mainly based on flotation, and is suitable for the ore that is closely symbiotic with GOL and sulfide, and can only be recovered by smelting. Due to the small amount of non-floating sulphide ore particles mostly pyrrhotite in the flotation tailings, it needs to be recovered by using a gold shaker table, spiral chute and cyclone.
Feb 26, 2020 The priority froth flotation method is suitable for rich ores with simple mineral composition, high lead and zinc content, and coarse disseminated ores. It is also suitable for dense massive sulfide ores with a large number of sulfide ores. It has the advantages of easy to control, high concentrate quality, small fluctuation of the flotation ...
With experience in the industry since 1990s, Xinhai has concluded that gravity separation, as an economic pre-treatment method before froth flotation, is suitable for some of the sulfide minerals processing, such as sulfide antimony ores, sulfide tungsten ores and other polymetallic sufide-bearing ores within which consist of large crystal ...
FROTH FLOTATION RECENT TRENDS IIME, JAMSHEDPUR, 1998 pp. 18-41 Flotation of Sulphide Ores - HZL Experience V.P. KOHAD Hindustan Zinc Ltd., Zawar Mines, Udaipur - 313 901 ABSTRACT Flotation process, patented in the year 1906, was originally developed for mineral industry to recover values from high grade tailings of gravity separation plants.
Froth floatation process is especially suitable for sulphide ores. It is based on the difference in wetting characters of the ore and gangue with water and oil. Thus, both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
Dec 20, 2018 The flotation of gold and silver minerals is mostly carried out in alkaline pulp medium, but for some gold-bearing pyrite and pyrrhotite, it is suitable for flotation in weak acid pulp medium. Oxygen has an effect on the flotation process of gold-silver sulfide ore oxidized to different degrees.
The traditional method applied for the flotation of copper oxide or mixed ores is sulphidisation which was first developed with industrial success on PbZn oxide ores in Australia Croier 1991. The method involves multistage addition of sodium sulphide Na 2 S sodium hydrogen sulphide NaHS or ammonium sulphide
2. A process for flotation of a sulphide mineral as defined in claim 1 wherein the size separation is effected at between about 25 to 45 micron. 3. A process for flotation of a sulphide mineral as defined in claim 1 wherein the coarse stream only is treated with moderate amounts of
The ore is a sulfide copper ore containing heads of approximately copper 0.45, iron 3.5, molybdenum 0.006, and zinc 0.06 per ore sample. Prior flotation of this ore has employed, in the flotation cell, the addition of pine oil as required to optimize froth, ordinarily resulting in a total pine oil concentration of about 0.24 lb.ton.
The flotation process may be carried out using conventional mechanical cells or, for selected applications, other type of cells such as columns and Jameson cells which have been reported to have some advantages. Any frother suitable for sulphide flotation can be used.
Feb 25, 2020 This study used RS for online characterization of volcanogenic massive sulfide ferrous iron ores containing sulfide minerals at the Pyh salmi mine with the custom probe connector. According to the results, RS is a suitable online tool for the rapid identification of enriched sulfide minerals from different flotation process phases.
Mar 16, 2019 Sulphide ores of metals are usually concentrated by froth flotation process. Which one of the following sulphide ores offer an exception and is concentrated by chemical leaching ... Leaching is the selective discharge of the desired mineral leaving behind the impurities in a suitable dissolving agent, for example, ... Sulphide ores are ...
Oct 27, 2020 Copper sulfide can be divided into single copper ore, copper sulfur ore, copper-molybdenum deposit, copper nickel, carrollite and so on. Basically, only flotation can be considered in its separation. Almost all copper sulphide ores contain iron-bearing sulfides, so in a sense, the flotation of copper sulfide is essentially the separation of ...
Used as the flotation collector for non-ferrous metal complex sulphide ore with medium selectivity and strong flotation ability, which is suitable for polymetalic sulphide ore consisting copper, lead zinc and so on. In the natural loop, it is particularly effective in the flotation for various copper and pyrite.
Apr 13, 2016 Flowsheet for treatment of Copper Sulfide ores rich in minerals such as chalcopyrite with gold and silver as well as arsenopyrite The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values. The ore, ranging from 60-65 silica, with pyrite, arsenopyrite, and calcite with 3 to 4 copper.
Jan 11, 2016 What Ore is Suitable for Flotation The largest class of ores treated by the flotation process consists of those containing the sulphide minerals of copper these sometimes contain native copper and also gold and silver, all of which can generally be floated with the sulphide minerals
Froth flotation is widely used for separating base metal sulphide minerals in complex ores. One of the major challenges faced by the flotation of these ores is the ever varying grade and mineralogy as the
The flotation is made selective by using reagents, which make the Cu-sulfide minerals water-repellant hydrophobic while leaving the other minerals wetted hydrophilic. Typical Cu sulfide recoveries to concentrate are 8590. Typical concentrate grades are 30 Cu higher with chalcocite, bornite, and native copper mineralization.
Froth floatation process is especially suitable for sulphide ores. It is based on the difference in wetting characters of the ore and gangue with water and oil. Thus, both Assertion and Reason are correct and Reason is the correct explanation for Assertion. Inquire Now Effect of Seawater on Sulfide Ore Flotation A Review
Feb 20, 2020 The priority froth flotation process is suitable for rich ores with simple mineral composition, high lead and zinc content, and coarse disseminated ores. It is also suitable for dense massive sulfide ores with a large number of sulfide ores.
Abstract. Variations in the oxidizing conditions of the pulp and their subsequent effects on flotation were examined for three types of natural sulphide ore, a complex pyrite ore, a sphalerite-galena ore and a chalcopyrite ore. Different gas mixtures ranging from pure nitrogen to pure oxygen were used to control the oxidizing conditions.
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