Laboratory flotation tests of slow cooled converter slag have showed that 92.5% copper recovery at the copper cutoff grade of 24-25 % can be achieved by using a 50:50 ratio of DSP330 and SIBX ...
130 Metall. Mater. Eng. Vol 21 (2) 2015 p. 127-141 Based on the dependence shown in Figure 3 and the known degree of fragmentation in flotation, efficiency of copper recovery is 89%.
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The plant trials have demonstrated that the copper recovery in the milling and flotation process of the slow cooled slags was improved by 3%. IntroductionIt is …
Metal Losses to the Slag in Smelting and Converting. 80% of the copper produced from ores worldwide originates from sulfide ores. The copper concentrate which results from flotation of the ore is typically smelted and converted to blister copper [].During smelting S and Fe are oxidized, where SiO 2 is added to form a liquid ferric or …
In the past few decades, many processes for the extraction of copper from copper slag have been proposed, including flotation,7, 8 leaching9, 10 and bioleaching.11 In particular, the flotation process can efficiently recover copper from the slow-cooled copper slag. This process has been used in industry, making a noticeable impact on …
Laboratory Test Works and Plant Trials for Milling and Flotation of Slow Cooled Copper Slag - T.T. Chen Honorary Symposium on Hydrometallurgy, …
[57] ABSTRACT A process for controlled slow cooling of non-ferrous smelting slags, such as copper slags, for the recovery of the non-ferrous metals contained therein by subsequent crushing, milling and ?otation operations is disclosed. The process comprises the steps of pouring the molten slag into a ladle, allowing the slag to slowly cool and …
[9, 10], and bioleaching [11] have been proposed. Milling and froth flotation methods are quite common when dealing with slow-cooled slags. Before flotation, the slag needs to be cooled inacontrolledmanner. Therearemultipleoptionsforthis,such as natural cooling, casting mill cooling, water quenching, and
This paper focuses on the grinding/milling of copper slag collected from the BCL Mine in Botswana to obtain a maximum amount of material in the desired size class with minimal energy consumption ...
copper grade of 16,11% and copper recovery of 69,90% was achieved. The copper grade on tailings was only 0,2%. Another aspect that can affect both the milling and flotation of CS is the cooling behavior of the slag. Several researchers have reported that slow cooling of the slag can lead to an improvement in copper recovery because of the ...
The flotation method involves slow cooling, crushing, grinding, and flotation. The slow-cooling temperature should be below the slag melting temperature zone, which is key to the success of flotation. ... The copper slag was rapidly cooled by spraying with water after granulating it into small slag blocks. The slag flakes were converted into ...
The copper slag produced by the smelting industry contains valuable metals like Cu, Fe, Zn, Pb, Co, and Ni, along with harmful components like As, Hg, Bi, and Sb. However, over 80% of global copper slag is discarded without proper disposal, wasting valuable metals and harming the environment (Phiri et al., 2022). While some copper …
Thionocarbamates are the group of collectors that are mostly used for flotation of sulphide copper minerals, alone or in combination with xanthates depending on a mineralogical composition of the ore.
Moreover, the flotation kinetic model of copper slag was established and the results showed that the movement of copper slag in the flotation process conforms to the first-order kinetics. The addition of sodium carbonate increased the stability of the pulp and improved the flotation kinetics greatly, resulting in a better flotation performance.
Figure 7 Scheme of experiment of flotation copper concentration of granulated copper slag No. 2, 2013 177 Mining & Metallurgy Engineering Bor Table 4 Results of experiment of flotation copper concentration of granulated copper slag T(g) T(%) Cu(%) I(%) U 665.6 100.00 0.77 100.00 K 47.3 7.11 7.92 73.37 J 618.3 92.89 0.22 23.63 The achieved ...
WEBLaboratory flotation tests of slow cooled converter slag have showed that 92.5% copper recovery at the copper cutoff grade of 24-25 % can be achieved by using …
Technological procedure of slow cooling slag from primary copper production is applied in the purpose of copper recovery in the level of 98.5% to blister. ... After testing of the experimentally gained samples of …
Technological procedure of slow cooling slag from primary copper production is applied in the purpose of copper recovery in the level of 98.5% to blister. This technological procedure is divided into two phases, first slow cooling of slag on the air for 24 hours, and then accelerated cooling with water for 48 hours.
In this study the effect of mixtures of copper slag and flotation tailings from copper mine Bor, Serbia on the flotation results of copper recovery and flotation kinetics parameters in a batch flotation cell has been investigated. ... Technological procedure of slow cooling slag from primary copper production is applied in the purpose of copper ...
Therefore, the molten copper slag in the slag ladle was cooled slowly to nearly 1000 ℃, and then treated by water quenching, which could not only achieve better flotation efficiency but also shorten the cooling time. Whereas, the copper flotation recovery rate of the CSS is in the range from 85 %∼92 % currently.
can efficiently recover copper from the slow-cooled copper slag. This process has been used in industry, ... Flotation Process For all batches, the flotation experiments were ... -scale flotation machine with a mechanical stirrer. Prior to each test, 500 g of the sample was wet ground in a ball mill to 90% passing 0.043 mm, and then the ...
Fig. 2-Slow-cooled converter slag (200X). In comparison, milling of the same slag after granulation by water quenching resulted in a 0.7% cop per tailing. The effect of cooling …
Froth flotation. In principle, the copper slag flotation is quite similar to the flotation of Cu-bearing sulphide minerals ([68];[128]; [10, 22, 78]). The copper values present in the slag, either as independent metallic particles or in the form of sulphides, can be floated effectively.
Indeed, these are effective routes to recover and utilize the copper and other non-ferrous metals. Particularly, it is considerably successful to recovery copper from slow-cooled copper slag by flotation process. However, these methods may suffer secondary pollutants or a difficulty in further treatments, and the recovery of iron is neglected.
Stirbanovic Z, Urosevic D, Dordevic M (2022) Application of thionocarbamates in copper slag flotation. Metals 12(5):832. Article Google Scholar Muravyov MI, Fomchenko NV, Usoltsev AV (2012) Leaching of copper and zinc from copper converter slag flotation tailings using H 2 SO 4 and biologically generated Fe 2 (SO 4) 3. Hydrometallurgy …
For an air-cooled slag at optimized conditions, 72% of copper was recovered in one stage flotation and a 12.6% copper concentrate was achieved. The best recovery efficiency was obtained when 30 g/t R407 was used as collector. It was found that recovery was also affected by the cooling rate of molten slag, and increased up to 84% …
Copper slag flotation was studied on an industrial scale at a concentrator plant in the region of Atacama, Chile. ... the slags are sent to a milling and flotation plant for liberation and recovery of residual copper. ... (1421). 10.3390/su12041421 Xue, P., Li, G., and Qin, Q. (2016). Recovery of copper from slow cooled ausmelt furnace slag by ...
Technological procedure of slow cooling slag from primary copper production is applied in the purpose of copper recovery in the level of 98.5% to blister. This technological procedure is divided into two phases, first slow cooling of slag on the air for 24 hours, and then accelerated cooling with water for 48 hours. Within the research …
