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MessagePosté le: Sam 15 Oct - 15:41 (2016)    Sujet du message: Pyrometallurgy Of Copper Pdf Free Répondre en citant




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Pyrometallurgy Of Copper Pdf Free

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In the twentieth century, most ores were concentrated before smelting. 2935 ^ Gill, p. The matte is removed by draining it through a hole into ladles for it to be carried by crane to the converters.[27] This draining process is known as tapping the furnace.[27] The matte taphole is normally a hole through a water-cooled copper block that prevents erosion of the refractory bricks lining the furnace. ^ T Robinson, "Electrolytic refining," in: Extractive Metallurgy of Copper, Fourth Edition, Eds W G Davenport, M King, M Schlesinger and A K Biswas (Elsevier Science Limited: Kidlington, Oxford, England, 2002) 265288. Cu2O + FeS = Cu2S + FeO[27] . Reverberatory furnaces can additionally be fed with molten slag from the later converting stage to recover the contained copper and other materials with a high copper content.[27]. The sulfur is removed at high temperature as sulfur dioxide by blowing air through molten matte:. The ore is then wet, suspended in a slurry, and mixed with xanthates or other reagents, which render the sulfide particles hydrophobic. Above this figure, oxidic copper begins to dominate.[21].

ScienceNews. doi:10.1073/pnas.68.6.1236. using the following smelting technologies: flash smelting, Isasmelt, Noranda, Mitsubishi or El Teniente furnaces.[8]. Unsourced material may be challenged and removed. This second stage, often referred to as poling is done by blowing natural gas, or some other reducing agent, through the molten copper oxide. Therefore, further stages of processing (converting and fire refining) are required. Carbonate concentrates are a relatively minor product produced from copper cementation plants, typically as the end-stage of a heap-leach operation. FeO + SiO2 FeO.SiO2[17] .

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