For Flotation Of Oxidized Copper Ore An effective processing method has not been found to recover copper and cobalt from this ore, Flotation Of Cobalt Ore,cobalt ore mining equipment flotation machinecobalt ore mining equipment flotation machine cobalt ore mining equipment flotation
This flattened shape of the larger particles could be a contributing factor to the reduced flotation recovery at the coarser sizes. Optimisation of gold recovery by selective gold flotation 235 EXPERIMENTAL The gold bearing copper/pyrite ore from the Telfer Gold Mine was supplied by Newcrest Mining
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Froth flotation is a widely used separating technique for the recovery of Cu and Au in porphyry copper gold ores. In these ores, chalcopyrite and gold are the main valuable mineral/metal phases, with pyrite being the key sulphide gangue mineral. However, in these ores gold is mostly associated with pyrite rather than the copper minerals.
The obtained results reveal that the recovery of copper and cobalt depends on the reagents dosage (Fig. 4). Indeed, the increase in the reagents dosage of 17% results in significant drops in the recovery of copper (18%) and cobalt (31%) during the roughing flotation of tailings.
The material that sinks in the first flotation cell goes on to two more flotation cells to recover as much copper as possible. What doesnt float is called tailings because it goes out the tail end of the flotation circuit. About 80 percent of the water used in the milling process is reclaimed and re used.
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sulphide reef ores to stockwork ore, oxide copper minerals to chalcopyrite, siltstone to competent quartzite, all with relatively high levels of gravity recoverable gold. The complexity of the orebody demanded a flexible plant that could recover copper and gold values by a combination of gravity recovery, flotation and concentrate leaching.
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recovery study and kinetic flotation modelling in a copper ore to get a saleable product Maria Ines Ulla XIII Jornadas Argentinas de Tratamiento de Minerales. 000 000 ESTUDIO DE RECUPERACIN Y MODELO CINTICO DE FLOTACIN EN UN MINERAL DE COBRE PARA OBTENER UN PRODUCTO COMERCIALIZABLE.
Copper total recovery, copper concentrate grade, copper tailings grade and weight recovery were evaluated with respect to four controlled independent variablesair input rate, froth depth, rotor speed and feed rate (residence time)plus several uncontrolled independent variables.
The ore is mined from an open pit, crushed, and fed to ten ball mills. The concentrator is divided into two parallel comminution flotation sections, so that five ball mills feed each flotation section. Both sections consist of three bulk copper and molybdenum rougher flotation lines, and the rougher concentrate is transferred to a regrinding stage.
of copper sulphate dosage that can activate the chromite and also to evaluate the effect of the depressant type and dosage on the recovery of chromite in the flotation of UG2 ore. The two depressants selected were for evaluation of the guar gum, IMP4 and the carboxymethyl cellulose (CMC), KU5. Flotation performance was evaluated using the
The concentrate products of copper, lead, and zinc can be obtained via flotation separation. The concentrate products of sulfur can be obtained only when the ores pyrite content is high. Gold and silver can be recovered from the concentrates of copper, lead, and zinc or from the products of pyrite.
Beneficiation of Copper Sulfide by Flotation. Sulphide copper ores generally occur with pyrite, pyrrhotite, arsenopyrite and molybdenite, and with gold and silver. A complete copper iron separation may not always be essential for the maximum economic recovery and often is tied to the distribution of the gold and silver values.
The polymetallic separation flowsheet of copper/lead bulk flotationcopper lead separationpriority floating zinc and pyrite from the bulk flotation tailings was used based on the ore properties. The flowsheet principles used in the experiment is shown in Figure 1. use con.as Concentrate, The following are the same as feed
Lime is commonly used as a pH regulator and depressant against iron minerals during the flotation recovery of copper minerals from copper porphyry sulfide ore. It can also depress copper oxide, secondary copper sulfide or gold minerals ( Allan and Woodcock, 2001 , Sun, 2001 , Liu et al., 2008a ).
According to these results, it was observed that enargite in the mixed ore can rst be recovered at pH 4 followed by chalcopyrite recovery at pH 8. As content in both chalcopy rite concentrate and nal tailings was reduced to below 0.5mass%. The enargite concentrate can be treated separately for As removal.
Flotation of Copper Ores. In most plants engaged in the flotation of ores containing copper bearing sulphide minerals with or without pyrite, pine oil is employed as a frother with one of the xanthates or aerofloat reagents or a combination of two or more of them as the promoter.
These oxidised copper minerals are found in weathered regions of most copper sulphide ore bodies The overlaying oxidic ore is usually stockpiled after it is removed from the sulphide lode and left unprocessed as the sulphide ore is simpler to recover by conventional flotation procedures and thus, more attractive to the plant operator.
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At a blend of 70% sulphide ore and 30% oxide ore, the rougher scavenger copper recovery was as high as 95.5%. The copper recovery from the blended ore using a mixture of collectors was shown to be superior to the recovery obtained using only xanthate after
Abstract. Oxidic ore can be concentrated using flotation or, if it has a low acid demand, it may be economic to acid heap leach the stockpile. The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1 2%TCu (underground mines) is of great commercial importance.
The variability of the Kansanshi mixed ore in terms of total copper and acid soluble copper grades has a major impact on the flotation recovery. In March 2011, three Blue Cube MQi (in line mineral quantifier) analysers were installed on the mixed ore flotation feed, concentrate and final tails respectively.
The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides. In conjunction with Ausmelt Chemicals, Minto is currently investigating options to recover copper oxide and sulphide minerals using flotation by blending their primary sulphide ore with oxide ores.
S were examined. Results of flotation tests were unsuccessful in terms of both recovery and grade of concentrate product. The highest copper recovery of concentrate was found as 61.35% with 8.69% copper content. The concentrate with highest copper grade of 34.65% was obtained with only 26.98% copper recovery.
Effective flotation collector reagent selection is dependent on the sulphide minerals present, their mineral associations in the ore, and circuit characteristics. Because an ore typically has more than one copper sulphide mineral type, often a combination of sulphide flotation collectors is used to maximize metallurgical performance.