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Slag fuming is a well-established process that has been in industrial operation for more than 80 years. Slag fuming is traditionally used to vaporize zinc from zinc-containing slags, mainly lead blast furnace slag, but also is applied in a few plants for copper-smelting slag. Reduction is achieved by using pulverized coal, lump coal or natural gas.
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Recovery of Copper from Copper Smelter Slag . iron slag recycle plant « iron ore crusher equipment. iron slag . Get Price And Support Online; COPPER SLAG RECOVERY EQUIPMENT - YouTube. Sep 26, 2016 · . Cooper Slag Process Plant iron recovery from slags Feb 13, 2016 Stone Crusher Machine for Sale copper slag recovery equipment Cooper Slag .
equipment for recovering copper from furnace slags | india ... Copper, Lead and Zinc Smelting and Refining. The slag is tapped from the furnace and stored or discarded in slag piles onsite. with the ore concentrates for copper ...
processed for copper-cobalt recovery to produce a copper-cobalt-iron alloy in the cobalt recovery furnace (CRF). The CRF process aims to obtain a final slag of approximately 0.4% copper and 0.2% cobalt which is normally discarded. The reductant used in these two processes is coke. The CRF process is intended to maximize the recovery of copper and
Improving Copper Recovery from Production Slags - RWTH Aachen ... realized at the IME in order to improve the metal recovery and to create mineral ... tion of intensive slag cleaning processes by submerged arc furnace and ...
Technological procedure of slow cooling slag from primary copper production is applied in the purpose of copper recovery in the level of 98.5% to blister. This technological procedure is divided into two phases, first slow cooling of slag on the air for 24 hours, and .
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.
Secondary copper blast furnace slag was treated with carbon to derive the conditions for maximum recovery of copper with minimum simultaneous reduction of iron oxide.
White Pine reverberatory furnace slags contained economically recoverable amounts of copper for a variety of reasons. Among them: White Pine concentrates yield extremely high matte grades (65+% Cu) and viscous slags. The viscous slags hinder matte settling causing matte "prill" entrapment in the slag. White Pine's total refined copper output is accomplished through fire refining ...
Laboratory and pilot plant investigations have indicated that copper recoveries of 50% can be achieved with fine grinding and flotation of a copper reverberatory furnace slag. Microscopic and microprobe studies indicate that the recoverable copper is in the form of matte, chalcocite, and metallic copper; the percentage of copper in particles appearing to be copper-free was from 0.23 – 0.54% ...
Smelting and Refining Operations. Adapted from the 3rd edition, Encyclopaedia of Occupational Health and Safety. In the production and refining of metals, valuable components are separated from worthless material in a series of different physical and chemical reactions.
Copper smelting slag is produced from copper pyrometallurgy (both smelting and converting stages), usually grading at 0.3-3%. The slag may also contains lead & zinc minerals like galena, sphalerite. Copper mainly dwells in the slag in the form of bornite, chalcocite, chalcopyrite, and metallic copper.
Copper scrap is treated using reverberatory furnace for melting anode-grade copper (i.e., . in the slag. Recovery of these metals from slags enables conversion. ... metal recovery furnace slag ? Double Equipment Mining. ... Recovery of metals from melting furnace slag has become an important branch of the recycling. The separation of metal ...
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 by injecting coke breeze into .
Slag cleaning | Outotec. Roasting · Solutions purification and metals recovery · Sulfuric acid processing ... The electric furnace technology for the cleaning of copper and nickel slags is a ... and equipment improvement make electric slag cleaning an attractive choice for ...
Recovery of copper from copper slag and copper slag flotation tailings 77by oxidative leaching Leaching with ferric sulphate The slag and the slag flotation tailings were leached with ferric sulphate in 1 M sulphuric acid. The ferric iron concentration was varied in the range from 5 g/dm3 to
Efficiency of copper recovery from a slag in an electric furnace depends on number of factors. The furnace dimensions play significant role, determining slag circulation pattern and velocity, mass transfer onto slag/coke and slag/electrodes reaction surface, inclusions coalescence and .
Outotec Slag Cleaning Slag cleaning at copper and nickel smelters is typically done using an electric furnace process. The design of Outotec slag cleaning furnaces is based on our extensive experience with different slag compositions and under-standing of how to optimize the process for maximum recovery.
The pyrometallurgical recovery of cobalt from waste copper slags is one of the recent advancements in nonferrous extractive metallurgy. The most recent technologies apply DC Plasma arc furnace technology to recover nonferrous metals. This technology has come with its challenges in both equipment configu-ration and the optimization for maximum
Copper loss in the slag of Khatoonabad flash smelting furnace is estimated to be about 1–3 %. At present, the electric slag cleaning furnace is used for the recovery of copper from slag. However, due...
All these three furnaces produce fayalite slag as a byproduct. The slags contain copper with the 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.
PDF | Copper loss in the slag of Khatoonabad flash smelting furnace is estimated to be about 1–3 %. At present, the electric slag cleaning furnace is used for the recovery of copper from slag.
The invention relates to a method for recovering copper, Mo, Fe, Pt, Au, Ag, Zn, Ni, Sn, Co, U, Re, Ge, Se, rare earth metals and any other metal from the Periodic Table of the Elements present in the slag content, obtained from the slag produced by copper smelting such as in the fusion and conversion of slag, from reverberatory furnaces, and especially the Teniente converter and Pierce-Smith ...
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