Tailings from an industrial copper slag cleaning milling and flotation circuit have been pre-reduced at low temperatures, well below its melting point, using CH 4 -H 2 -Ar mixtures with the aim of metallizing its iron oxide component to metallic iron.
12%The recovery of copper by floatation from slow cooled Ausmelt furnace slag was studied in this paper. The phases and composition of the slow cooled slag were analyzed. The factors which affected the copper recovery efficiency such as grinding fineness, pH value of flotation medium, different collectors and floating process were investigated.
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Copper Slag Services . With global operations, TMS International offers slag pot carrying services to copper producers around the world. Although each individual smelter has its own unique configuration and layout, we have the appropriate machinery, engineering and capabilities to provide industry proven solutions with safety as our priority.
Shijie Wang, Rio Tinto Kennecott Utah Copper Refinery. John E. Dutrizac, CANMET. Michael L. Free, University of Utah. James Y. Hwang, Michigan Technical University. Daniel Kim, Rio Tinto Kennecott Utah Copper Refinery
Copper slag flotation was studied on an industrial scale at a concentrator plant in the region of Atacama, Chile. This study consisted of the physical, chemical, and mineralogical characterization of the copper slag, along with preliminary flotation tests. This article focuses on industrial flotation, which consisted of two oneyear campaigns (2016 and 2017).
Oricas Flotation Reagents Increase Copper Recovery Rates. xstrata needed to improve copper recovery and called on orica to identify and test collectors. orica formulated a collector that would enhance milling and flotation of slow cooled copper slag. ultimately, the process needed to achieve superior recovery of copper at a natural ph over a specific grind fineness. xstratas …
12%Milling and froth flotation methods are quite common when dealing with slow-cooled slags. Before flotation, the slag needs to be cooled in a controlled manner. There are multiple options for this, such as natural cooling, casting mill cooling, water quenching, and slow cooling in a ladle [ 12 ].
Laboratory Test Works and Plant Trials for Milling and Flotation of Slow Cooled Copper Slag 471 P. Tan An Experimental Study of Chemical Oxygen Demand Removal from the Coking Wastewater Using Three-Dimensional Electrode Reactor 479 L. Zhang, G. Xue, andJ. Hwang Behavior of Various Impurities during the Precipitation of Hematite from Ferric
The slag in the molten state needs to be cooled, and the way it is cooled determines its properties and commercial use; for example, in the recovery of copper, slow cooling of slag leads to a recovery of about 98.5% [32,33,34]. The molten slag solidifies during cooling in different ways depending on whether it is cooled under atmospheric ...
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milling and flotation of slow cooled copper slag in … 15 · Flotation Machine. Processing Ability: 0.2–16 m³/min Processed Materials: Non-ferrous metal minerals such as copper, lead, zinc, molybdenum, cobalt, tungsten, antimony etc. Applications: The machine can be used to separate nonferrous metal, ferrous metal, noble metal, nonmetallic ...
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A flotation process for copper ores and copper smelter slag comprising grinding copper-bearing material, adding a compound of the following formula: ##STR2## wherein R represents one member selected from the group consisting of hydrogen atom and alkyl groups containing 1 to 20 carbon atoms to the resulting ground material and further adding ...
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The invention provides a novel welding slag ladle suitable for a slow cooling process of copper slag. The novel welding slag ladle comprises a ladle body, a ladle bottom and a plurality of ladle feet, wherein the ladle body is pressed into a whole; the ladle bottom is welded at the bottom of the ladle body; the ladle feet are welded at the bottom of the ladle bottom; a radiating space is ...
Bubbles of SO 2 gas formed at the boundary of the slagmatte interphase layer tend to exit into the gas compartment above the slag layer and slow the deposition of …
Laboratory Test Works and Plant Trials for Milling and Flotation of Slow Cooled Copper Slag. Pengfii Tan. Search for more papers by this author. Alberto Oalvez. Search for more papers by this author. Lucya Yunus. Search for more papers by this author. Xstrata Copper.
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Copper in the slag is largely in the form of metallic copper and good recovery by flotation can be obtained by slow cooling the slag at ambient temperature to promote copper crystal growth. More study is needed to determine the optimum cooling cycle for maximum copper crystal growth.
The invention provides a novel welding slag ladle suitable for a slow cooling process of copper slag. The novel welding slag ladle comprises a ladle body, a ladle bottom and a plurality of ladle feet, wherein the ladle body is pressed into a whole; the ladle bottom is welded at the bottom of the ladle body; the ladle feet are welded at the bottom of the ladle bottom; a …
flotation tails between 0.2 and 0.3 wt-% (Vehviläinen et al. 2000). The mineralogy of the granulated slags is mostly glassy and the fraction of crystalline phases is small, whereas the slow cooling technology in ladles (Subramanian & Themelis 1972) is often combined with the slag milling and flotation. It generates a coarse
However, recovery of copper was about 4 percent lower for the high copper slag (sample C) and 23 percent lower for the low copper slag (sample A). Flotation tailings from the quenched slags ranged from 0.53 to 0.66 percent; slow-cooled slags gave tailings containing from only 0.26 to 0.39 percent copper with lowest analyses for 30-minute grinds.
Aiming at the slow cooling copper slag of a smelting plant in China, the effects of insulation and slow cooling system on copper recovery index of copper slag flotation were studied by taking holding time and cooling rate as variables. The effects of holding time and cooling rate on the crystallization performance of high temperature copper slag were …
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Copper Slag - Wiley Online Library 15 May 2012 ... Laboratory Test Works and Plant Trials for Milling and Flotation of Slow Cooled Copper Slag.Shijie Wang,; John E. …
Mihajlović - The effect of cooling rate of slag from primary copper production … 129 In Table 1 an overview is given of copper content in flotation tailings in smelters which process slag by flotation. Table 1. Copper content in flotation tailings in different smelters Smelter %Cu Almalykskii, Russia 0,27 Garfield, USA 0,48 Guixi, China 0,50
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