2020-11-9 · Supergene copper ores rich in sulfides may be concentrated using froth flotation. Types of copper ore: More information ... grinding circuits where high-grade copper concentrate is …
The invention belongs to the field of mineral processing, relates to a beneficiation method, and particularly relates to a method of sorting copper sulfide ore flotation tailings. The method comprises the following steps: A, the tailings with copper and sulfur separated are dewatered through a thickener, wherein the content of the sulfur in the tailings is more than 20%, and the concentration ...
2018-2-22 · while for the Cu ore it was the -150 um size fraction. The fines were separately floated in a Denver flotation cell. In a first series of flotation experiments, using the highly liberated Zn ore, comparison between the flotation response in the HydroFloat versus the Denver flotation cell was performed on a particle size basis.
The deposit is mineralogically and texturally complex due to supergene enrichment resulting in the presence of a variety of primary and secondary copper minerals. This necessitates the processing of ore through three separate circuits: sulphide flotation, mixed flotation and oxide leach, followed by solvent extraction and electro-winning.
2012-3-8 · sulfide ore and reprecipitated at depth. This precipitation of Cu sulfides with high Cu/S ratios can produce an economically significant copper enrichment at the reactive redox boundary between massive sulfide protore and downward penetrating fluids. …
2016-5-30 · Introduction Different sulphide ores respond differently in the prospect of copper activation to thiols for froth flotation. With the BCL Selebi-Phikwe ore body, pentlandite–pyrrhotite–chalcopyrite co-occur and there is the constraint of fine pentlandite dissemination in the pyrrhotite, so that liberation is limited. In the presence of pentlandite, pyrrhotite can even be galvanically ...
2016-4-13 · Flowsheet for treatment of Copper Sulfide ores rich inminerals 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 …
2017-2-4 · sulfide ores processing is the separation of pentlandite from pyrrhotite [1]. One of the difficult challenges for the nickel sulfide ore is the presence of violarite and magnetite . The conditioning of sulphide ore flotation begins with a grinding process and ends in a flotation cell at the moment a gas bubble catches a mineral grain.
2021-11-11 · A single sulfide ore is mostly processed by forth flotation, and the whole process includes crushing, grinding, classification, and forth flotation. Under the appropriate grinding fineness and agent system, from the raw ore with a Cu content of 0.77%, a concentrate with a Cu grade of 23.86% can be obtained, and the recovery rate is 95.24%.
2017-6-12 · In this study, chitosan polymer was tested as a potential selective green depressant of pyrite in the bulk flotation of galena (PbS) and chalcopyrite (CuFeS 2 ) from sphalerite (ZnS) and pyrite (FeS 2 ) using sodium isopropyl xanthate as a collector and 4-methyl-2-pentanol (MIBC) as a frother. Flotation tests were carried out in a D12-Denver flotation laboratory cell in the presence and ...
2011-12-1 · sulphide ore flotation practices in brief and processes adopted in HZL''s plants. It also highlights R&D efforts made and new technologies adopted in one of the most complex sulphide ore beneficiation plants to solve metallurgical problems in flotation process. Key Words : Froth flotation, Sulphide flotation, Control system, Flotation
2010-11-1 · The flotation froth was scraped every 10 s and four rougher concentrates were collected at 0.5, 2, 4 and 8 min, and analyzed separately. Batch flotation tests on the Au–Cu sulphide ore sample were conducted in a laboratory Wemco flotation machine with a 2 …
Early in 1990, Pancontinental Resources (Base Metals) Pty Ltd commenced flotation treatment of ore from the complex copper-lead-zinc sulphide orebody at Thalanga, 65 km west of Charters Towers in North Queensland. The orebody consists mainly of primary sulphide ore but also contains a substantial proportion of supergene ores which are being processed during the first year of operations.
2021-2-4 · Selective flotation of sulphide minerals from complex ore is dependent on the several parameters such as: type and dosage of collectors, galvanic interactions and activation by …
2021-11-11 · Sulphide ores are the major sources of base metals like Copper, Lead, Zinc, Nickel and Cobalt. Beneficiation of. these base metal sulphide minerals is predominantl y through the froth flotation ...
Keywords— Froth flotation, Sulphidisation, Copper oxide ore, Mineralogy, Recovery I. INTRODUCTION HIS article concentrates on the development of the flotation procedure for an oxide copper ore in the RCA. Oxide copper ores are very common in the RCA. These are formed by atmospheric weathering of near surface sulphide deposits [1].
2017-12-17 · The oxidised sulphide ore was studied by artificially oxidising a copper sulphide ore to various states during 16 months. For each oxidation state, the effect of chemistry was studied through a series of grinding and flotation tests completed under various grinding environments.
2016-6-7 · 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 permissionfrom the CanadianInstitute of Mining, Metallurgy and Petroleum.) Figure 6 Flotation results obtained with Clarabelle ore from
Ore Deposits Formed by Oxidation and Supergene Enrichment · When ore deposits are exposed to the oxidation zone they are weathered and altered with the country rocks. · The surface waters oxidize many ore minerals and yield solvents that dissolve other minerals. · An orebody thus becomes oxidized and generally leached of many of its valuable materials down to the groundwater table, or to ...
Sulphide ore is treated in the flotation plant producing a copper-gold concentrate. The tails from flotation are treated in the magnetite plant to produce a high-quality, low-cost iron concentrate. The plant currently produces approximately 15,000 tonnes of concentrate per month at a grade of 22.5% copper with credits received for the gold in ...
Ore Deposits Formed by Oxidation and Supergene Enrichment · When ore deposits are exposed to the oxidation zone they are weathered and altered with the country rocks. · The surface waters oxidize many ore minerals and yield solvents that dissolve other minerals. · An orebody thus becomes oxidized and generally leached of many of its valuable materials down to the groundwater table, or to ...
Flotation separation of chalcopyrite from molybdenite was studied using seaweed glue (SEG) as a depressant. Flotation process and mechanism were examined by response surface methodology, flotation tests, adsorption tests, zeta potential measurements …
When the sulphide concentrate from this flotation test is leached with cyanide, gold recovery from the concentrate is 60%. The tailings from the flotation test return a gold assay of 0.49 g/t. The ore samples were then given to a process mineralogist who studied polished sections of the various fractions (ore, concentrate and tailings) under a ...
2016-1-11 · 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 …
2021-1-15 · The flotation tests were carried out on the ground mixed ore sample using a conventional Agitair LA-500 stainless steel flotation cell (1.75 L), specifically designed to avoid particle settling and entrainment (Filippov et al., 2016).For each experiment, a pulp sample of 90 g dry mixed ore sample was mixed into the cell with water at 800 rpm to obtain a 20 wt% solid density.
2009-8-26 · 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 1—The 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
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.
2021-3-26 · Froth flotation is the process used in the Platinum Group Metal industry to upgrade the run-of-mine ore for subsequent processes such as smelting and hydrometallurgical PGM refining. The PGM concentrator plants achieve high PGM recoveries (>85%) …
2020-12-8 · sulphide ore. Mineralogical investigations suggest that the relatively low copper grades from batch flotation cannot be attributed to the presence of composite particles, and can potentially be improved using a series of cleaner floats. The effects of supergene enrichment on mineralogy and texture, and its influence on
2021-9-12 · Iron Ore - hjedwardsaktiebolag . For sulphide ores, both secondary (supergene) and primary (hypogene), froth flotation is used to physically separate ore from gangue. For special native copper bearing ore bodies or sections of ore bodies rich in supergene native copper, this mineral can be recovered by a simple gravity circuit. Get More
Flotation process, patented in the year 1906, was origin-ally developed for mineral industry to recover values from high grade tailings of gravity seperation plants. This technology has acclaimed importance as a versatile process for the beneficiation of vast variety of sulphide mine-rals. Due to flexibility of the process and remarkable development taken place in flotation technology and its ...
2021-1-10 · Sodium Sulfide(Sodium Sulphide) can be used in sulfur dye, reductant of dye intermediate, mordant, flotation agent of ore, depilation agent of leather, paper cooking agent. Moreover, Sodium Sulfide(Sodium Sulphide) is widely used in textile, pigment and rubber industry, or used in the production of sodium thiosulfate, sodium polysulfide and sodium hydrosulphide.
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2021-11-8 · Thus the sulphide ore comes on the top with the froth and oil. The remaining gangue particles which did not dissolve in oil settle down. The foam is removed and taken for further processing. Thus the minerals are separated by the froth-flotation process. …