Chapter 12 Flotation of Copper Sulfide Ores. 12.1 COPPER ORES AND MINERALS. More than 170 copper-containing minerals are known and only 10-15 of these minerals have any economic value. The most important economic copper minerals are chalcopy-rite, chalcocite, bornite and covellite. Table 12.1 lists the copper minerals of economic value.
represents a major problem in the treatment of coppermolybdenum sulde ore. Both of them easily lead to otation concentrates, thus reducing concentrate grade and causing downstream processing problems as well as increased smelting costs 2. The separation of chalcopyrite and molybdenite has therefore been the focus of a great deal of research.
Usage mineral processing, in particular flotation of copper-zinc sulphide ores and products. Method of flotation of sulfide copper-zinc ores includes the conditioning of the pulp in a calcareous environment with reagents-regulators sulfur, sodium, and zinc sulfate, the introduction of collector and Frother and subsequent separation with separation of copper minerals in the froth reagents, regulators
The flotation of complex sulfide copper ores Complex ore are often characterized by particularly fine intergrowth of the mineral values. Due to this specific mineralogical characteristic, it is necessary to finely grind and concentrate ore prior to the solubilization of valuable metals Makita, et.al. 2010. Apart from high energy consumption ...
Sulfidization requires pulp potential control to keep this parameter in the range of 0 to 100 mV, yielding high copper recoveries at minimum collector 90 git and fr other 60 git dosages. Flotation with nitrogen reduces the sodium sulfide dosages required to keep the pulp potential within the optimum range.
Oct 27, 2020 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 copper sulfide from iron sulfide. The common iron
Oct 12, 2019 the critical role of pulp density on flotation separation of . - mdpi26 jul 2018 . in nickel-copper sulfide ore processing, serpentine is a common gangue mineral encountered in complex sulfide ores and can easily cause.evaluation of flotation collectors for copper sulfides and pyrite, i .using the criteria of recovery and rate, the flotation of the principal copper sulfides and pyrite with ...
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Pure mineral specimens of chalcocite, bornite, and chalcopyrite as typical primary and secondary sulfide ores were used for contact angle measurements and single mineral flotation tests. Mixture mineral flotation tests were conducted using Chilean copper ore
Our alternatives have proven performance in the flotation of copper ores, polymetalic ores and gold associated to sulfides. Polymetalics Ores HOSTAFLOT collectors are formulated to achieve the best possible recovery and selectivity when needed.
The smelter for sulfide ores produces sulfur dioxide gas. This is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide ores. Scrubbing sulfur dioxide also protects the environment. For example FeOs SiO 2 s FeO.SiO 2 slag This is
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.
Copper oxide ores are commonly difficult-to-float due to its molecular structure, and adding sodium sulfide as activator is necessary however, its dosage to the flotation pulp must be strictly ...
Reagent scheme used for flotation of sulfide copper ores Unlike porphyry copper ore where the reagent schemes are similar for most operations the reagent schemes used for the treatment of sulfide copper ores are much more diverse and are designed to cope with specific problems associated with processing the
Base metals such as copper, lead, and zinc are mainly extracted from sulfide ores. Mostly these base metals tend to exist together in an ore. Flotation process is widely used to separate these minerals in sulfide ores . A wide range of chemical reagents are used in the flotation process to separate the different minerals.
In the present study the leaching of oxide-sulfide copper ore was considered, and a modification of the existing process was performed by inserting the leach-ing process between the ore milling and the flotation sections. Therefore, a higher overall efficiency of
Jul 01, 2019 Liberation of sulphide minerals in the mixed ore, with number of particles containing the mineral in brackets. The liberation of the oxide minerals is shown in Fig. 4. Malachite is the only copper oxide mineral with a significant liberation, with 84 of the particles - on a mass basis -
Copper Sulfide Ore and Flotation Process. 07092019 07092019 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
Ores in the Elatsite depsoit are divided into three sorts sulfide copper ores - not more than 10 , mixed ores oxide copper from 10 to 30 and oxides with oxide copper more than 30 Average copper content indifferent sorts of copper is the following Sulfide ores in granodiorite rocks 0.43 Sulfide ores in schistous rocks 0.38
Aggregates flotation of sulfide copper-Nickel ores testify to the following. In example 3, at a flow rate of vacuum Aero 8860GL stage ore grinding 10010050 gt, which is below the recommended content is reduced in the collective Cu-Mo concentrate copper to 15.3, molybdenum up to 0,35 when removing 83,45 70,00, respectively. ...
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
The recovery of coarse copper sulphide composite particles via flotation is a function of inherent ore body mineralogical properties, surface chemistry and hydrodynamic conditions such as Size of the particle Degree of hydrophobicity contact angle Liberation of the copper sulphide Texture of
Jan 01, 2017 Base metals such as copper, lead, and zinc are mainly extracted from sulfide ores. Mostly these base metals tend to exist together in an ore. Flotation process is widely used to separate these minerals in sulfide ores 1. A wide range of chemical reagents are used in the flotation process to separate the different minerals.
The flotation concentrate contains sufficient copper for it to be suitable for smelting to recover the metal. Silver, gold and platinum group metals present in copper ores follow the copper in both the flotation circuit and the smelter, and are recovered in the final, electrorefining stage. Electrorefining is discussed in the final Section.