Copper processing
The flotation concentrate is then dewatered and filtered to produce a filter cake that is sent to a copper smelter. Copper processing - Ores, Refining, Smelting: Principal forms in which copper ores are found include native copper, porphyry copper, massive deposits, and mixed ores. Native copper is simply the metal found unadulterated in nature.
اقرأ أكثر
The effect of crystallochemical peculiarities of nickel sulphide
The FTIR (DRIFT) and FT-Raman studies of the products of copper–nickel ore flotation have recorded the presence of goethite, iron sulphates and sulphur element on the surface of mineral grains. It is a characteristic that the elemental suphur peaks' intensity decreased in the spectra on transition from the concentrate of between-bath to …
اقرأ أكثر
Froth Flotation Process
Few of them knew organic chemistry. Those in charge of flotation rarely had flotation laboratories. Flotation research was done by 'cut and try' and empirical methods. The mining industry had no well …
اقرأ أكثر
Minerals | Free Full-Text | Flotation of Copper Ores …
Ores excavated from these deposits are typically processed by flotation—a separation technique based on the difference in surface wettabilities of minerals—to recover copper sulfides (mostly chalcopyrite …
اقرأ أكثر
Flotation of copper oxide minerals: A review
For copper oxide ores that contain weak magnetic copper-bearing minerals, such as libethenite, and copper-bearing limonite, after sulfidization flotation, …
اقرأ أكثر
(PDF) Effect of wet ball milling on copper ore flotation by …
The ore sample of under-investigation was a copper ore. The examined parameters include grinding time, ball load, and solid weight percentage. ... on copper ore flotation by fractal geometry ...
اقرأ أكثر
Copper Sulfide Flotation
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 ore, ranging from 60-65% silica, with pyrite, arsenopyrite, and calcite with 3 to 4% copper.
اقرأ أكثر
The Impact of Pulp Temperature on the Flotation Performance of Copper
A complex copper-lead-zinc sulfide ore from a mine in the Iberian belt was used in the flotation tests. The chemical composition of the ore was given in Table 1 . The ore is a massive sulfide ore with approx. 75% pyrite, 0.8% chalcopyrite, 1.2% galena, 9% sphalerite and trace amounts of secondary copper minerals and arsenopyrite.
اقرأ أكثر
Flotation of mixed copper oxide and sulphide minerals with …
Many copper sulphide mines around the world have significant copper oxide ore reserves associated with the larger primary copper sulphide deposit. The traditional techniques for processing oxide ores, either by leaching – SX/EW or flotation have caused many problems for these operations.
اقرأ أكثر
Copper processing
The flotation concentrate is then dewatered and filtered to produce a filter cake that is sent to a copper smelter. Copper processing - Ores, Refining, Smelting: Principal forms in which copper ores are found …
اقرأ أكثر
(PDF) The effect of process water salinity on flotation of copper ore
The process water used for the flotation of sedimentary copper ore in ore concentration plants in KGHM Polska Miedz S.A. were characterized. The process water used in the flotation circuits is ...
اقرأ أكثر
Comparison of single and mixed reagent systems for flotation of copper …
Fig. 12 (a) depicts the results of copper ore flotation with respect to sequence of collector addition in the presence of xanthate and thionocarbamate collector mixture in the ratio 1:1. The Cu recovery and grade is maximum when BBT was added first in the flotation cell.
اقرأ أكثر
Improving the performance of a low-grade porphyry …
Flotation may be the most important separation process used in the minerals industry. Its objective is to produce a salable concentrate from a mined ore with desired …
اقرأ أكثر
The Challenges and Prospects of Recovering Fine Copper …
Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are separated as tailings. However, a significant amount of copper is lost into tailings during the processing; therefore, tailings can be considered …
اقرأ أكثر
Behavior of talc and mica in copper ore flotation
The copper ore sample was obtained from Northparkes Copper & Gold Mine, Australia. This ore was chosen due to its relatively unproblematic flotation characteristics. Such an ore provides a formidable baseline for the identification of the deleterious effects of clays. The chemical assays of the ore sample contains 0.5% Cu, …
اقرأ أكثر
SULFIDISATION PROMOTION EFFECT OF AMMONIUM …
It can be seen from the above two Tables that the oxidation ratio of the ore sample is 61.39% with a combination ratio of 16.74 %, thus to some extent indicates the sample is a relative dif fi cult to fl oat copper oxide ore. Flotation reagents Sodium Sulfi de, Na2S· 9H2O, as an activator, molecular weight 240.18g, AR quality, produced by
اقرأ أكثر
Minerals | Free Full-Text | Flotation of Copper …
Porphyry copper deposits are important sources of copper and typically processed by flotation to produce copper concentrates. As mining areas become deeper, the amounts of impurities, such as sphalerite, can be …
اقرأ أكثر
The Impact of Pulp Temperature on the Flotation …
A complex copper-lead-zinc sulfide ore from a mine in the Iberian belt was used in the flotation tests. The chemical composition of the ore was given in Table 1 . …
اقرأ أكثر
Estimated Water Requirements for the Conventional Flotation of Copper Ores
U.S. Department of the Interior KEN SALAZAR, Secretary U.S. Geological Survey See more
اقرأ أكثر
Flotation of Copper Ores
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. Since then the Callow scheme has been adopted by nearly all the other mills in the Coeur d'Alene for the treatment of their lead- zinc ...
اقرأ أكثر
A New Application For Flotation Of Oxidized Copper Ore
In this study, the flotation of oxidized copper ore obtained from Ergani Copper Mining Company in Turkey was performed. This ore contains 2.03% copper, 0.15% cobalt and 3.73% sulfur.
اقرأ أكثر
A Review of the Flotation of Copper Minerals
Flotation of sulphidic and oxidic copper minerals is reviewed, with particular reference to previous studies of refractory copper ore flotation. Keywords: Flotation; recovery; …
اقرأ أكثر
Maximise pyrite depression in copper ore flotation using …
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 ...
اقرأ أكثر
Flotation of Nickel-Copper Sulphide Ore: Optimisation of …
The flotation by surface sulphidisation of the oxidized copper-cobalt-bearing ore from Kimpe (1.97% Cu; 0.66% Co) was studied in order to evaluate its behavior by the analysis of its most ...
اقرأ أكثر
Application of the grade-recovery curve in the batch flotation …
For instance for a chalcocite copper ore the maximum theoretical content is 79.9% because theoretical Cu content in Cu 2 S is 79.9%. In many cases, the separation line starts at another point on the grade axis. ... The results of flotation of different copper ores plotted as the grade-recovery curves with indicated characteristic points such as ...
اقرأ أكثر
Minerals | Free Full-Text | Sustainable Use of Copper …
The copper oxide ore of the Yangla Mine in Yunnan, China, with 1.02% copper was subjected to flotation with a mixture of potassium amyl xanthate (PAX) and hydroxamate AM28 as the collector. A rougher concentrate was reported with a 3.19% Cu grade and 38.4% recovery [ 112 ].
اقرأ أكثر
A Review of the Flotation of Copper Minerals
(CuO.SiO₂). 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 …
اقرأ أكثر
Model Discrimination in the Flotation of a Porphyry Copper Ore
Numerous flotation models have been proposed in the literature. Thirteen of these have been applied to batch flotation data and evaluated with respect to one another using statistical techniques.Flotation tests were carried out on samples of a US porphyry copper ore (Pinto Valley, AZ). The ore was tested using various collector and frother systems to …
اقرأ أكثر
Increasing the grind size for effective liberation and flotation …
Furthermore, Sahyoun et al. (2005) conducted flotation tests on the same ore and demonstrated a 3–6% increase in copper recovery after microwave treatment (up to 12 kW and 1.7 kW h/t on <22 mm size material) as opposed to the 1% increase reported by Kingman et al. (2000a), attributed to the higher power density sustained in the single …
اقرأ أكثر
Improving Flocculation Performance of Copper Flotation …
For instance, the flotation process is performed with water containing 25–35% wt solid ratio and is consumed 1.9–3 m 3 water per ton of ore processed (Gunson et al., 2012; Li et al., 2019). However, the tailing slurry containing roughly 40–60% solids is discharged as a result of the process (Bleiwas, 2012 ).
اقرأ أكثر