The slags contain a copper content ranging between 0.8 to 5% copper. The slags cannot be discarded due to the high content of copper and hence they are sent to a milling and flotation plant (Slag Mill Plant) for liberation and recovery of copper.
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slowly cooled FSF (flash smelting furnace) and PS converter (Peirce-Smith) slags. Zhai et al. [15] studied the effects of the holding and cooling time on the crystallization and perfor-mance of copper slag, finding that it was possible to obtain a Clarification The designation of corresponding author is correct. Ari Jokilaakso is the
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This study was designed to recover copper and cobalt hydrometallurgically from an enriched concentrate of flotation and converter slag. Three slag samples collected from the Ergani Copper Co. of Etibank were studied. In order to convert the copper and cobalt into sulfate compounds, samples were roasted after sulfurization and leached with water.
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In recent years, there has been a move toward recovering copper from converter-type slags by milling and flotation. The term "converter-type slag" is intended to represent a slag that contains a high amount of magnetite (Fe 3 O 4) and a low amount of silica.
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Apr 01, · In this research, a hydrometallurgical method for recovery of copper from copper rich converter slag is investigated. The main copper containing phases of the slag are cuprite (Cu 2 O), delafossite (CuFeO 2) and metallic copper (Cu).The study investigates the effect of particle size, temperature, acid concentration, agitation and leaching time under oxidizing conditions.
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Abstract. Aiming at the recovery of copper from smelting slag, a flotation approach was studied. It was found that this slag composed of fine particles with complex association and distribution, in which bornite was the main copper-bearing mineral after a detailed mineralogy analysis via polarizing microscope, SEM and XRD.
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copper slag recycling plants metal oxides and produces impure copper and an iron rich slag that. at a from reverberatory furnace slag by flotation May 12, · A process for the recovery of iron from copper slag which The 20 Mt reverberatory furnace slag dump at Nkana in Zambia banded iron ore flotation;
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approximately 12 million tons of copper slag is produced every year, and the amount of accumulated waster copper slag reached 140 million ton by in China [6]. Generally, copper slag contains about 35–45 wt. % iron and 0.5–1.5 wt. % copper, indicating that it is a valuable secondary resource for recycling and utilization [3].
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The mineralogy of the slag plant samples is essentially the same as that of the granulated slag described above. The slag milling specification is 50–65 per cent passing 75 µm after which the slag is fed into the flotation circuit. Screen size analysis results for flotation feed samples are shown in Table III.
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In addition to copper-bearing charge and recycled converter slag, the shaft furnace for copper stone production also introduces waste from the Results of the lead slag flotation with 0-0.25 mm
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Muhammad et al. [18] employed sulfuric acid to extract metals from copper-rich converter slag. A copper precipitation rate of 90% can be obtained. At the same time, the iron extraction rate is only slightly higher than 60%. Mikoda et al. [20] used acidithiobacillus thiooxidans to leach valuable metals from copper metallurgical slag. The
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