induction furnace cleaning of copper slag

Induction Furnace Cleaning Of Copper Slag

Copper Smelting - Metallurgist & Mineral Processing Engineerinduction furnace cleaning of copper slag, belt conveyor ...Birnith is changing the way business is done. Birnith believes the value of brand, which originates from not only excellent products and solutions, but also considerate pre-sales & after-sales technical services. So, we have set up a team with hundreds of technical engineers to resolve a series of problems during project consultation, on-site ...

Minimization of Copper Losses in Copper Smelting Slag ...

2012-9-21 · During the last few decades, the pyrometallurgical processes used for cleaning copper smelting slags have been steadily optimized. The electric furnace or rotary slag-cleaning furnace are now generally used to perform this task, giving a level of copper in discard slag typically in the range of 0.55 wt.% and 1.3 wt.%, with most plants reporting copper losses in …Control of Slag and Insoluble Build-up in Melting Furnaces2020-5-14 · The areas of slag deposits are at a much lower temperature than the center of the furnace walls. Slag also is deposited in areas midway down the crucible lining, where insufficient metal turbulence from magnetic stirring occurs. Channel Furnaces: Another type of induction melting furnace is the channel furnace. The channel and the coreless ...

Improving Copper Recovery from Production Slags by ...

2013-10-14 · Keywords: slag cleaning, stirring mode, copper slag, submerged arc furnace, stirring reactor Abstract Slags resulting from pyrometallurgical copper processes are important by-products to be controlled in structure and composition. Due to the significant volumes of slag compared with those of theControl of Slag and Insoluble Buildup in Ladles, Melting ...2020-5-14 · Figure 1: Typical slag buildup in a coreless induction furnace (gray shaded areas) The hottest area of medium and high frequency coreless furnaces is at the mid-point of the power coil. All areas of slag deposit will be at a much lower temperature than those occurring at the center of the coil.

Holland, Keiran; Eriç, R. Hürman; Taskinen, Pekka ...

superscript ° to elemental form. In terms of copper recovery, it is thus quite important how the copper slag has been processed and cooled post the smelting or converting furnace, EF and prior to the milling and flotation step. Far less important, in this respect, is the actual smelting and converting technology upstream of the slag cleaning step.SAIMM2019-10-29 · copper slag-cleaning electric furnace. The tap-block was designed without any internal refractory; it relies purely on the development and maintenance of a freeze lining on its hot face and within the tapping channel to protect the copper and promote the integrity of the

Copper Smelting

2021-1-13 · Slag formed in the smelting and converting reactions flows to the slag well. Slag cleaning occurs as a result of contact with lower grade matte in passing through zone 1, by the roast reaction of copper sulfide and copper oxides by the reduction of copper oxide by sulfur and ferrous sulfide, and by the reduction of magnetite.Heavy Metal Recovery from Slags of Copper Production …2021-8-17 · Furthermore arc furnaces can be used for cleaning of copper slag, which are pro-ducts of the Noranda or Teniente converters. In general the slag product still contains 0.5–1 wt.% of copper and is taken out by a separate tap hole (in Figure 2 at the right-side). The remaining copper content in the slag is determined by the portion of matte,

Kinetics of Copper Reduction from Molten Slags

2014-10-27 · invariably lead to significant copper loss in slag, which needs to be recovered by means of reduction and settling in a separate slag cleaning furnace. Reduction of iron oxides from slags using carbon as a reductant in the form of dissolved carbon in iron or graphite has been studied extensively by a large number of researchers. A number ofMICROSTRUCTURE CHARACTERISATION OF FREEZE …2015-2-2 · lining microstructure forming on water cooled steel surface in a high-silica, slag cleaning furnace slag of a direct-to-blister copper smelter is mostly glassy or amorphous. It contains 5-30 µm magnetite crystals, very small and larger copper droplets as well as small magnetite and silicate nuclei embedded in the glassy silica-rich matrix.

Chapter 6 Copper Production Technology

1996-11-20 · 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 ...SAFETY: 8 - Furnace, Induction furnace, Induction …2011-5-3 · * In induction melting, furnaces should be charged carefully to avoid bridging of the charge Excessive temperature in the bath below the bridge can cause rapid erosion of the furnace Lining and a dangerous run-through which could cause an explosion. To melt out a bridge After it has formed. 1st tilt the furnace to 30 to 400C and the power supply

How to Recover Copper from Slag by Flotation

2021-2-3 · Recovery of copper in concentrates from slags cooled in the induction furnace and ground for 30 minutes ranged from 87.1 to 96.2 percent with the best recovery obtained on the highest grade slag sample. Copper content of the flotation tailings, which is the most important indicator, ranged from 0.26 to 0.39 percent.SHAFT SLAG FURNACE (SSF) | PPER-LINES Windows for slag cleaning – 2 pcs.; Windows for copper cleaning – 1 pcs.; Feeding windows; Gas conduit; Gas burners. Characteristics of raw material. The raw material for the shaft furnace is the slag obtained from the fire refining of copper-containing scrap, with a copper content of 5% or more. Melting of the stock is carried out by ...

Control of Copper Smelter Fugitive Emissions

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 ...RESEARCH ON THE REDUCTION OF COOPER SLAG …perties of flash smelting slags on copper losses during slag cleaning in an electrical furnace. Archives of Metallurgy 32 (1987) 3, 307-319. [10] S. Zhou, Y. Wei, S. Zhang, N. Li, H.Wang, Y. Yang, M. Baratic. Reduction of copper smelting slag using waste co-oking oil. Journal of Cleaner Production 236 (2019), 1-10.

Cleaning of a copper matte smelting slag from a water ...

Cleaning experiments of a copper matte smelting slag from the water-jacket furnace was undertaken by direct reduction in a laboratory-scale electric furnace. The effects of coal-to-slag ratio, w, and the reduction time, t, were considered for two different coal/slag mixing procedures. In the first procedure, metallurgical coal was added to the molten slag, whereas in the second …Electric Slag Cleaning Furnace - OutotecMinimizes air leakage into the furnace, as well as dust emissions from the furnace. Operation. With the Outotec Electric Slag Cleaning Furnace, the cleaning of smelting furnace slag is carried out using surface coke reduction in an electric furnace. The circular or rectangular electric furnace is operated in batches and equipped with ...