Copper matte Oxygen enriched air Smelting zone Settling zone slag matte Boiler Flue gas Treatment Oxygen plant Power plant steam Onahama Smelter is essentially copper smelter , however, Shredder dust is treated in a reverberatory furnace. Their dioxins emission is less 0.1ng TEQ/m3
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The Bureau of Mines conducted bench- and small-scale continuous studies to develop a process for recovering a recyclable copper product from waste, granulated, blast furnace slag. The investigation was part of the Bureau's secondary resource recovery program. The slag contained 5 to 7 percent total copper, of which 3 to 4.5 percent was metallic copper.Get Price
removed as slag. Then, by reducing the furnace atmosphere, cuprous oxide (CuO) is converted to Figure 12.9-2. High-grade brass and bronze alloying. (Source Classification Codes in parentheses.) copper. Fire-refined copper is cast into anodes, which are used during electrolysis. The anodes are submerged in a sulfuric acid solution containing ...Get Price
The Egyptian copper smelting furnace was filled with a mixture of copper ore, charcoal and iron ore to act as a flux. It was blown for several hours by foot or hand bellows. By the end of the smelt the copper had separated from the slag, which was tapped off. SOURCE Robert Raymond,Out of tfre Fjery Furnace (University Park, PA The Pennsylvania ...Get Price
The copper content of the slag is maintained at 0.5 to 0.6 percent Cu by maintaining a reducing atmosphere in the slag cleaning furnace. The slag then flows by gravity to the converter furnace. The converter furnace produces anode copper which flows to a holding furnace prior to anode casting. Slag from the con- verter furnace is granulated ...Get Price
Apr 30, 2015 Larger furnaces are suited to foundries specialising in the smelting of drosses and similar materials. Monometer’s copper refining rotary furnaces offer the highest possible purity refining of any fire refining technology, achieving up to 99.9% purity from scraps such as Birch/Cliff. Cycle times are typically under 5 hours for a 5 tonne charge.Get Price
per ton of copper should be less than 16 tons, the sulfur capture rate of the copper smelting production process should reach 99%, and the sulfur recovery rate should reach 97.5% or more. (XI) The water recycling rate of copper smelting enterprises using secondary copper …Get Price
It draws on in-depth experience of our entire product portfolio. That includes de-dusting and gas cleaning systems for submerged-arc furnaces, electric-arc furnaces, BOF, and other equipment used in the steel and metal industry. SMS group supplies dry and wet cleaning systems as well as electric filter stations for primary dedusting.Get Price
Jun 01, 2000 The slag from the converters returns to the reverb furnace to capture any remaining copper, and the furnace slag goes to the slag dump. Sulphur given off in the converters is captured and sent to the acid plant for fixation, while sulphur from the reverb furnace is …Get Price
SMS provides solutions for the metallurgical treatment of non-ferrous grades gained from WEEE (waste electrical and electronic equipment) materials to facilitate the efficient recycling of precious materials, such as Au, Ag, Pt, Pd, Ni, and Cu. Up to 98% of these metals can …Get Price
Jun 01, 2000 The blister is refined in the anode furnaces for purification to 99.1% Cu, before being cast to form 300-kg copper anodes. These are cooled and then sent by rail and truck to the CCR refinery in Montreal East. Slag from the reactor and the converters is sent to the concentrator to recover the copper.Get Price
duction of cathode copper. Assuming an ore grade of 0.55 percent and a recovery rate of87.5 6.4 percent copper in the concentrate, concentrat-ing 1 ton of copper ore requires over 200 billion Btu, or approximately 42 million Btu/ton of cath-ode copper.10 Grinding accountsfor roughly 6 0 percent of the total energy consumed in proc-Get Price
Copper processing - Copper processing - Roasting, smelting, and converting: Once a concentrate has been produced containing copper and other metals of value (such as gold and silver), the next step is to remove impurity elements. In older processes the concentrate, containing between 5 and 10 percent water, is first roasted in a cylindrical, refractory-lined furnace of either the hearth or ...Get Price
ZXMT 3KG Gold Melting Furnace Electric Digital Melting Furnace Machine Kit with Graphite Crucible for Melt Scrap, Gold, Silver, Copper, Aluminum 110V Refining Casting Furnace 1500W 2000F (Black) 3.9 out of 5 stars 12Get Price
Specialities include: - Copper cooling, launder, taphole and refractory lining design. - Submerged Arc Furnace & Slag Cleaning Furnace design. - Heat transfer and fluid flow analysis. - FEA and CFD analysis. - Product development and commercialisation. - Cost estimation and capital budgeting. Please contact me at [email protected]Get Price
The Bureau of Mines is investigating pyrometallurgical and chemical methods to recover valuable constituents from metallurgical dusts and slags. Under this program a technique was developed to recover iron from molten copper smelting furnace slags by carbon injection. Slags from gas-fired reverberatory and electric copper smelting furnaces were treated in an 800-kva electric-arc furnace …Get Price
May 25, 2017 The main component of the equipment is an electric tube furnace. A crucible with copper slag was placed in the furnace tube, and the top of the furnace tube was sealed using a …Get Price
Nickel processing - Nickel processing - Extraction and refining: The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are the use of higher-temperature refractories and the increased cooling required to accommodate the higher operating temperatures in nickel ...Get Price
Mar 05, 2021 Optimal slag-fuming furnace operation. High-temperature slag from the lead smelter is evacuated periodically into a slag-fuming furnace for secondary recovery of high-value elements, such as zinc, germanium, and indium. Poor temperature control due to conservative APC logic ultimately resulted in suboptimal fumer performance.Get Price
the 1980 Copper Strike, ”Journal of Air Pollution Control, vol. 33,. though fossil-fueled electric powerplants are the major source of S0 2 emissions in the United States, smelters contribute significantly to total emissions in the sparsely popuIated copper-pro-ducing areas of the West (see table 8-l). Fugitive emissions from furnaces and ...Get Price
The copper concentrate is first sent through the smelting furnace to be heated up to 2,300 F and converted into molten liquid. The heated liquid is poured into a slag-settling furnace. This step produces a combination of matte, a mixture of copper, sulfur and iron, and slag, a dense, glassy material made of iron, silica, and other impurities.Get Price
Waste printed circuit boards (WPCBs) are treated by crushing and electrostatic separation to obtain the copper-rich particles. However, the copper-rich particles contain a certain content of solder, which may cause Pb contamination if improperly treated. The separation behaviors of Pb from single solder and solder mixed with Cu particles under vacuum are studied in this work. Due to the ...Get Price
Apr 13, 2011 Monitor the temperature inside the furnace closely, and allow it to continue to heat up until the temperature inside of the furnace is approximately 1200 degrees C (or about 2192 degrees F). Step 2 - Create the Slag. The slag is the liquid metal mixture that will be the result of the temperature being raised to the high level that it is. To ...Get Price
Upgrade Gold Melting Furnace, 110V Electric Digital Furnace Machine w/1KG and 3KG Graphite Crucible and Ingot Mold, 2100 ℉ PID Smelter Kiln Kit for Melting Gold, Silver, Copper…Get Price
Mar 01, 2021 Menad N., Kana N., Kanari N., Pereira F., Seron A. Process for Enhancing the Valuable Metal Recovery from “Electric Arc Furnace” (EAF) Slags. Waste Biomass Valor. 2021 doi: 10.1007/s12649-021-01357-6. [Google Scholar]Get Price
Where copper and copper alloy scraps are very contaminated and unsuitable for simple remelting, they can be recycled by other means to recover the copper either as the metal or to give some of the many copper compounds essential for use in industry and agriculture. This is the usual practice for recovery of useable copper in slag, dross or mill ...Get Price
Aug 05, 2011 SMS Siemag developed a continuous operating rectangular furnace, which ensures a better recovery rate compared with circular-shaped furnaces. The group commissioned this furnace at mining company ...Get Price
Improving Copper Recovery from Production Slags by Advances Stirring Methods Proceedings of EMC 2011 3 treated in the existing copper extraction route or separately in a subsequent reactor the slag phase can be used as construction material for example. 1.2 Conventional pyrometallurgical copper slag …Get Price
The U.S. Department of Energy's Office of Scientific and Technical InformationGet Price
Slag produced by flash furnace operations contains significantly higher amounts of copper than reverberatory or electric furnaces. Flash furnace slag is treated in a slag cleaning furnace with coke or iron sulfide. Because copper has a higher affinity for sulfur than oxygen, the copper in the slag (as copper oxide) is converted to copper sulfide.Get Price
Copper smelting slag typically contains about 1 wt.% copper and 40 wt.% iron depending upon the initial ore quality and the furnace type. Main components of copper slag are iron oxide and silica. These exist in copper slag mainly in the form of fayalite (2FeO SiO2).Get Price
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