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The article presents the results of experimental sulfidization of smelt and converter slags of copper smelting production using granular elemental sulfur at a temperature of 1300 °C in an inert atmosphere without hydrocarbon or metal reducing agents. The distribution of sulfur over products and the behavior of copper are …Web
Uses of smelter slags include road building, railroad ballast, road base or sub-base material, in waste stabilization, various types of concrete aggregates, fill, glass manufacture and soil ...Web
Since copper smelting slag contains high content of iron, and copper and zinc, common applications of copper smelting slag can be used in value-added products such as abrasive tools, roofing granules, road-base construction, railroad ballast, fine aggregate in concrete, etc. Some studies have attempted to recover metal values from copper slag.Web
The harmless treatment of historical lead smelting slag (LSS) is of significance to ecological and environmental protection, but it is still challenging in terms of the economic feasibility of alone processing …Web
Common applications of copper smelting slag are the value added products such as abrasive tools, roofing granules, road-base construction, railroad ballast, fine aggregate in concrete, etc., as ...Web
Hydrometallurgical treatment is widely used on copper recovery from copper slag that including direct leaching in sulphuric acid, leaching in sulphuric acid …Web
Maolan Z, Je W, Hang C, Haoke F, Haohan G, Zhibiao H (2019) Experimental study on iron recovery by smelting reduction of copper slag. Nonferr Met 01:16-18 Status quo of developmnet and utilization ...Web
Since copper smelting slag contains high content of iron, and copper and zinc, common applications of copper smelting slag can be used in value-added products such as abrasive tools, roofing granules, road-base construction, railroad ballast, fine aggregate in concrete, etc. Some studies have attempted to recover metal values from copper slag.Web
Copper slag is a by-product obtained during smelting and refining of copper. 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 ·SiO 2).Web
A modern slag crushing and screening unit has been installed at the edge of the slag dump at American Smelting & Refining Co.'s Garfield Smelter to facilitate treatment of slag, found extremely useful as ballast on western railroad grades. Slag has become popular as ballast because of its excellent drainage characteristics which lead …Web
Since copper smelting slag contains high content of iron, and copper and zinc, common applications of copper smelting slag can be used in value-added products such as abrasive tools, roofing granules, road-base construction, railroad ballast, fine aggregate in concrete, etc. Some studies have attempted to recover metal values from copper slag.Web
Copper slag is generated when copper and nickel ores are recovered from their parent ores using a pyrometallurgical process, and these ores usually contain other …Web
Air-cooled copper slag has a black colour and glassy appearance. The specific gravity varies with iron content, from a low of 2.8 to as high as 3.8. The unit weight of copper slag is somewhat higher than that of conventional aggregate. The absorption capacity of the material is typically very low (0.13%). Granulated copper slag is more …Web
The copper smelting process produces plenty of copper slag every year, which is a hazardous solid waste, but a secondary resource. In the present study, the extraction of copper, nickel, and cobalt from copper slag was investigated through the process of sulfation roasting–water leaching and the process of sulfation roasting–sulfate …Web
The favourable physico-mechanical characteristics of copper slag can be utilised to make the products like cement, fill, ballast, abrasive, aggregate, roofing …Web
My Research and Language Selection Sign into My Research Create My Research Account English; Help and support. Support Center Find answers to questions about products, access, use, setup, and administration.; Contact Us Have a question, idea, or some feedback? We want to hear from you.Web
Slag Content . The focus of copper smelting has been to maximize copper recovery; all other metals are considered impurities that remain in the slag. The smelting process leaves behind iron silicate (approximately 40% of the slag) and significant amounts of SiO. 2, FeO, CaO, and Al. 2. O. 3. as well as small amounts of copper, zinc, titanium ...Web
Common applications of copper smelting slag are the value added products such as abrasive tools, roofing granules, road-base construction, railroad ballast, fine aggregate in concrete, etc., as ...Web
Copper slag is a by-product obtained during matte smelting and refining of copper. The common management options for copper slag are recycling, recovering of metal, production of value added products such as abrasive tools, roofing granules, cutting tools, abrasive, tiles, glass, road-base construction, railroad ballast, asphalt …Web
Thermodynamic analysis and laboratory experiments were carried out to determine the feasibility and reliability of this new process. The optimum slag cleaning conditions were determined as follow: reductive agent coke dosage of 12%, 20% CaSO 4 addition of smelter slag weight, smelting at 1350 °C for 3 h. Under the optimum …Web
Copper slag is a by-product obtained during smelting of copper from copper ores. ... Table 1 shows the chemical composition of copper slag produced by different smelting methods ... abrasive, tiles, glass, road-base construction, railroad ballast, asphalt pavements, cement and concrete industries [8,9,10,11,12]. Table 1 Typical chemical ...Web
Annually more than 400 Mt of metallurgical slags are produced worldwide [1,2,3,4,5].From the annual Cu concentrate smelter production capacity, which is equal to around 21 Mt of copper metal in 2021, it can be estimated that more than 45 Mt of CUS were produced from primary sources assuming a slag to copper ratio of 2.2 [3, 4].Only …Web
Copper smelting slag is a solution of molten oxides created during the copper smelting and refining process, and about 1.5 million tons of copper slag are generated annually in Korea. The oxides in copper smelting slag include ferrous (FeO), ferric oxide (Fe2O3), silica (SiO2 from flux), alumina (AI2O3), calcia (CaO) and magnesia …Web
In contrast, copper droplets were directionally separated from copper matte smelting slag within 3–5 min at 1523–1573 K via super-gravity with a high Cu recovery ratio of 97.98%.Web
A review on the recovery of copper from waste copper slag. • Discussion on physical beneficiation, pyro- and hydrometallurgical routes. • Critical aspects of froth …Web
PDF | Copper smelting slag usually contains 1–6 wt% copper, which can be recovered by pyrometallurgical and flotation processes. However, the tailing... | Find, …Web
Copper slag, a waste solid produced in the copper smelting process, is a high-quality secondary resource with huge output. The recycling and utilization of copper slag is of great interest because it avoids the loss of valuable metals and the threat of harmful metals, and saves a lot of natural resources and energy. This paper firstly …Web
Copper slag, a waste solid produced in the copper smelting process, is a high-quality secondary resource with huge output. The recycling and utilization of …Web
Some studies have attempted to recover metal values from copper slag. This research was intended to recover ferrous alloy contained Cu, a raw material of zinc, …Web
About 50–70 weight% of the copper in slag exist in sulphide (matte) form while the rest is in the silicate form as copper was lost due to mechanical entrainment and oxidation, respectively [1, 4].Due to the fact a majority of copper in the slag is in the matte form, copper slags in Zambia are processed via froth flotation [4, 5].However, Kafre …Web
