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Copper sulfide ore flotation Copper sulfide ore classification (1) Single copper ore. Its composition is relatively simple, and the only valuable component is copper. The gangue is mainly quartz, silicates, and carbonates. (2) Copper-sulfur ore. valuable components are copper, pyrite. (3) Copper pyrite. valuable components are copper, pyrite ...
investigated sample of copper-molybdenum ore con-tains 0,42 % copper; 0,009 % molybdenum. The phase analysis of the original ore for copper and molybdenum was performed. The results of the analysis showed that the content of primary copper sulfides (chalcopyrite CuFeS 2) in the ore is 95,5 %; secondary copper sulfides (chalcocite Cu 2
The ore bodies currently being mined are confined to fractures in the upper portion of the sill known as the "Ventures" gabbro. Mineralization, consisting of chalcopyrite, pyrite and magnetite occurs in east-west shears with a northerly dip and easterly plunge. As of December 31, 1960, the ore reserves were estimated as follows:
Residence time distribution (RTD) is a critical parameter in design and optimization of flotation processes and machines. RTD measurements provide valuable indication into the distribution of ...
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The depression of pyrite in copper ore flotation is a challenge in high salinity water although natural pyrite can be depressed readily at alkaline pH due to the formation of iron hydroxides on pyrite surfaces (Boulton et al., 2001, Mu et al., 2016).In copper ore flotation, a galvanic interaction occurs between copper minerals and pyrite with copper minerals acting …
This molybdenum flotation circuit, based on 250-500 tons per 24 hours is designed for low-grade molybdenum ore having high-grade streaks and with pyrite-quartz gangue.It is also basically sound for many other friable sulphide ores, such as antimony, silver and even some lead ores. The basic ideas stressed in this moly flotation flowsheet are the …
The pyrite recovery from the flotation of the copper ore with 25 % pyrite was finally reduced as the pH increased from 10.5 to 11.5. Nonetheless, the improved Cu concentrate grade was limited, only comparable to that produced from the flotation of the copper ore with 5 % pyrite at pH 9.0. To understand why the high-concentration pyrite could ...
Keywords: Copper tailing, Pyrite recovery, Flotation, Split factor Accumulated recoveries as a time function of the rougher, scavenger, cleaner, and recleaner flotation stages.
With the advent of flotation and the fact that gold either free or finely disseminated in pyrite, etc., could be floated, many possibilities opened up for the treatment and concentration of gold ores. It also provided the means of …
1. Crushing and screening: The raw ore is transported to the mine warehouse by the mine car for storage, and then sent to the jaw crusher through the vibration feeding machine for a stage of crushing. The crushed material is transported to the vibrating screen for screening. The screened product is transported back to the fine jaw crusher through the belt for the second …
29% of the total ore mined in the Russian Federation for copper production is finely disseminated copper-zinc-pyrite ores of the Ural Region. Physical and chemical characteristics of pyrite copper-zinc ores make for difficulties in obtaining high indices during processing. At present, the authors have elaborated the technology to improve the quality of copper …
Role of starch and metabisulphite on pure pyrite and pyritic copper ore flotation 41 Mineralogical study also showed that about 50% of ore is formed by pyrite, as a major mineral in the ore. ... Method Experimental studies have been carried out with Denver flotation machines using 40 g of -100 μm pure pyrite in one dm3 cell for pure pyrite ...
This plant consists of 8 rougher and 2 cleaner cells and treated 500 tons per 24 hours. A 30-hp. motor furnished power for all the air necessary for both mixing and separating, and the oil consumption averaged as low as 0.13 lb. of refined pine-oil per ton of ore. It was an ideal floating ore.
Flotation may also prove to be the more economical process for an ore containing such minerals as stibnite, copper-bearing sulphides, tellurides, etc., which require roasting before cyanidation, since it reduces the tonnage …
With this process, copper was recovered first with MBS depression of lead, zinc and pyrite. Lead was recovered after conditioning, utilizing cyanide as the base depression scheme to control sphalerite and pyrite. In these tests, a zinc flotation was also performed to measure the metallurgical performance of that metal.
Fig. 1 (a) shows that when the dosage of S-7261A as the arsenopyrite depressant is increased from 40 g/t to 140 g/t, the copper grade rises from 15.69% to 26.26%, which indicates that S-7261A has a significant depressing effect on pyrite and thus can be used for the flotation separation of pyrite among sulfide ore. Meanwhile, the increasing ...
XFD single-cell flotation machines (Jilin Exploring Machinery Plant, Changchun, China), the scraper speed is 15 r/min, the spindle speed is 1999 r/min, and the aeration rate is 0.2 m 3 /h) …
The change in pH allows the copper and iron atoms to dissolve from the copper ore lattice, leaving a surface deficient in metals and rich in sulfur rather than elemental sulfur (Equation (13)). ... Pyrite flotation was induced by xanthate (1.1 × 10 −4 mol/L) and activated by copper cations (2.6 × 10 −4 mol/L).
Flotation of the selectively dispersed MMF ore was carried out in a Denver flotation machine-model 5201-110 using a 250 g flotation cell at 900 rpm and pH 10±0.3. The flotation time, KAX+KEX (1:1) and Na 2 S dosages were varied, keeping the MIBC dosage fixed in the rougher stage. The rougher
The pyrite processing mostly in flotation, flowed by the gravity separation process, and gravity-flotation combination. Gravity separation process For ore with simple ore properties, coarser grain size or uneven grain size, a single gravity separation process can be used. General gravity separation equipment, such as pyrite jig, spiral chute, hydrocyclone, …
The Pyrite Depression in a Copper Only Flotation circuit is simple enough. If your froth flotation system only tries to recover chalcopyrite-copper, you need to bring the plant's pH up to the other side (right side) of the PYRITE …
The common iron sulfide minerals in copper ore are pyrite and pyrrhotite. Chalcopyrite: a kind of copper oxide ore ... Performance advantages of copper ore flotation machine. The copper flotation machine increases …
Copper sulfide ores frequently co-occur with pyrite, presenting a significant challenge for their selective separation during beneficiation processes. Despite advancements in flotation technology, there remains a critical need for efficient methods to enhance copper recovery while suppressing pyrite interference, particularly without compromising the …
Role of starch and metabisulphite on pure pyrite and pyritic copper ore flotation 41 Mineralogical study also showed that about 50% of ore is formed by pyrite, as a major mineral in the ore. Table 1. Chemical analyses of the samples Compound Pure Pyrite Sample % Pyritic Copper Ore Sample % Fe 42.43 27.65 S 49.40 27.22
Commonly called fool's gold, pyrite is the Earth's most abundant sulfide mineral. Recognized for its brass-yellow color which resembles that of gold, pyrite is a source of iron and sulfur and is used for the production of sulfuric acid. Some types of pyrite contain enough microscopic gold to warrant mining them as a gold ore. Pyrite Uses
Extraction of copper from copper pyrite (C u F e S 2) involves : crushing followed by concentration of the ore by froth-flotation; removal of iron as slag; self-reduction step to produce 'blister copper' following evolution of S O 2; refining of 'blister copper' by carbon reduction
Starch and meta bisulphite were used as a depressant for pure pyrite sample and a pyritic copper ore at two different pHs values. pH was 6.5 and 10 in pure pyrite study while it was 6.9 and 12 in ...
