Studies on the recovery of copper from the dust generated in copper smelter

Priya, Jayati and Randhawa, N S and Patel, J N and Jha, Soni and Hait, Jhumki (2019) Studies on the recovery of copper from the dust generated in copper smelter. In: 23rd International Conference on Nonferrous Minerals and Metals, 12-13 July 2019, Kolkata, India.

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Nonferrous metallurgical wastes like tailings, dross, dust, etc. are the potential resource of metals values. The technologies for recovery of valuable metals from these waste materials are under development. New recycling concept for metal-containing waste is developed to turn waste into a valuable resource and valorizing of the waste and residue after primary extraction of metals. The objective of the present work was to recover copper from the dust generated in a copper smelting plant. A representative sample of the dust was characterized by ICP-OES, XRD, and SEM-EDS methods. The major constituent of the dust was copper, iron, and sulfur along with minor amounts of nickel, molybdenum, and cobalt. The thermochemical simulation was carried out for the sulfation roasting of dust sample. The dust samples were roasted in the air with H2SO4 at 80 o C for 2 h. In comparison to the raw sample, the roasted dust sample showed better selectivity for the recovery of copper. The leaching of copper more selective with the roasting temperature from 600 to 900 o C with a simultaneous decrease in iron leaching. The results obtained from sulfation roasting were very encouraging. Water leaching of the roasted sample showed a significant increase in the recovery of copper.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:copper; copper smelter; recovery
Divisions:Metal Extraction and Forming
ID Code:8199
Deposited By:Dr. A K Sahu
Deposited On:13 Jul 2020 10:31
Last Modified:14 Jul 2020 22:52
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