Secondary Copper Smelting US EPA
to form a solution of copper sulfate (CuSO4), which can then be either mixed with the electrolyte in the refinery cells or sold as a product. Smelting Smelting of lowgrade copper scrap begins with melting in either a blast or a rotary furnace, resulting in slag and impure copper. If a blast furnace is used, this copper is charged to ...
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Comparison of Electrodynamic Fragmentation and Crushing of Converter ...
2 Director Slag Flotation Plant Aurubis Bulgaria ... Figure 4: Copper converter slag EDF breakage 300 +150 µm fraction (left) and Copper ... For converter slag, which contains a high percentage of pure copper and digenite (copper sulphide mineral: Cu 9 S 5
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Isasmelt™ at Mufulira Increased Flexibility on The Zambian Copperbelt
2Mopani Copper Mines plc, Mufulira Smelter, PO Box 22000, Kitwe, ... ISASMELT™ products and return slag from the PeirceSmith converters producing a discard slag for disposal at the slag dump. ... but would be a nonzero value if slag cleaning were performed using a flotation process. I Dust J Slag Con K Revert Concentrate A Feed Air B Oxygen C
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Copper_extraction_techniques
Pyrometallurgical extraction. The following is a process of copper extraction from chalcopyrite ore into pure metal. While oxide ores can be processed using pyrometallurgical techniques, hydrometallurgical methods are more cost effective. The copper ore is crushed and ground before it is concentrated to between 20 and 40% copper in a flotation ...
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Eti Copper Production Plant THEORETICAL BACKROUND OF COPPER ... 9lib
While the matte is sent to converter to obtain blister copper, the slag is discarded to disposal area to recover copper sequentially by cooling, grinding and flotation process. ... Paths for converting; slag blow from A, B, C or D to E (white metal); Copper blow: E to F (highsulfur copper) [55] Figure : Partial liquidus diagram for the ...
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Pyrometallurgical Process for Producing Metallic Copper From Copper ...
We claim 1. A pyrometallurgical process for producing metallic copper from copper sulfide concentrates, comprising substantially continuously feeding a copper sulfide concentrate and a flux therefor into a conventional, airblow, copper converter vessel, said vessel containing a high quality, molten bath that, except for accumulating slag and still unmelted feed, consists substantially only of ...
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Characterization of copper slag for beneficiation of iron and ... Heliyon
Copper slag is a metallurgical waste that is disposed by way of stockpiling at designated dump sites within a mining site. The observed depletion of highgrade iron ores in Botswana and the environmental hazards associated with disposal of untreated metallurgical waste, presents an opportunity for research on secondary sources of iron and copper.
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Copper Processing | Multotec
Copper Processing. Copper processing uses physical, mechanical and / or chemical methods to convert runofmine (ROM) copper ore to highquality, pure copper. A wide range of mineral processing equipment is used in converting the copper ore to the final copper product, our solutions range includes: Screening Solutions. Cyclone Solutions.
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Francisco Carranza Mora Google Scholar
High efficiency reactor for the biooxidation of ferrous iron. A Mazuelos, F Carranza, I Palencia, R Romero. Hydrometallurgy 58 (3), 269275, 2000. 63: 2000: Ferric leaching of copper slag flotation tailings. F Carranza, N Iglesias, A Mazuelos, R Romero, O Forcat ... Kinetics improvement of highgrade sulphides bioleaching by effects separation ...
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high drying efficiency rotary dryer for limestone
Rotary dryer has a better performance than tube bundle rotary dryer, blade rotary dryer. Rotary dryer has the features of big capacity, low energy cost and high efficiency. Application: Dryer is widely used for drying slag limestone, coal powder, slag, clay, etc. Dryer can also be used in building materials, metallurgy, chemical and cement ...
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Environmental Considerations of Selected Energy Conserving ...
The cleaned gases are then converted to sulfuric acid. Other design features are burners at each end of the furnace, a feed port for charging copper concentrate, flux, and slag concentrate by means of a belt slinger, and separate tapholes for tapping slag and copper. The reactor bath consists of layers of slag, highgrade matte, and metallic ...
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Effect of Cooling Rate and Slag Modification on the Copper ... Aalto
cles could be better collected in the subsequent flotation to reduce copper losses in the waste slag. In addition to testing the cooling time and controlling the cooling rate, some researchers have even considered using slag modification to increase copper recovery. Wang [18] studied the role of an additive, which was mainly waste bio
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Progress in Comprehensive Recovery and Utilization of Copper Smelting Slag
The grade of copper and iron in copper smelting slag are high, and they are often associated with valuable metal elements such as gold, silver, lead and zinc. Therefore, improving the comprehensive utilization of copper slag is conducive to improving the utilization rate of resources and reducing environmental pollution. The present situation of comprehensive recovery and utilization of copper ...
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Pyrometallurgical Recovery of Copper Values From Converter Slags ...
Process for recovering copper from molten convertertype slags or other highly oxidized copper smelter slags containing 730 percent by weight of magnetite (Fe 3 O 4 ). The magnetit ... there has been a move toward recovering copper from convertertype slags by milling and flotation. The term "convertertype slag" is intended to represent a ...
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Minerals Extraction and Processing: New Developments JSTOR
sulfur as SO2 (8). Converter slags are high in copper and are retreated by recycling to the mattesmelting furnace or by slow cooling and flotation to make a copper concentrate for recycling to the mattesmelting furnace. Blister copper from the converter is further firerefined to make a marketable product or is cast into anodes for ...
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Plantwide optimization of a copper smelter: how to do it in ... Trepo
The matte grade affects slag blowing times and the copperinslag content in the PSC. Feed rate affects the overall schedule and overall production rate. The circulated slag from AF or from copper blow shortens the required slag blowing times and increases copper content in PSC slag but has a cooling effect as well. The actual bottleneck of the
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Extractive Metallurgy of Copper
Extractive Metallurgy of Copper, Sixth Edition, expands on previous editions, including sections on orogenesis and copper mineralogy and new processes for efficiently recovering copper from everdeclining Cugrade mineral deposits. The book evaluates processes for maintaining concentrate Cu grades from lower grade ores. Sections cover the recovery of critical byproducts (, cesium), worker ...
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Recovery of copper from reverberatory furnace slag by flotation
The recovery of copper from reverberatory furnace slag utilizing flotation has been studied. The effective factors such as particle size, pH, the amount and type of collector and additives, and...
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