Provided is a method for processing water-quenched copper slag and recycling iron, lead and zinc with a rotary kiln, and is characterized in that the method comprises the steps: 10-20% of coal and 10-20% of a flux are added in the water-quenched copper slag after flotation of copper; in the rotary kiln, the combustion-supporting wind volume ratio is adjusted to be 60-80% of the air volume ...
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May 16, 2017· All workers involved in copper slag processing (n = 5) approached or exceeded the Occupational Safety and Health Administration permissible exposure limit of 10 µg/m 3 for arsenic (range: 9.12–18.0 µg/m 3).Read More
decreasing copper to a lower content in the final metal phase. However, the copper content in the final slag decreases to a minimum value of 0.06% and the iron decreases from 28.53% to 7.11% with the increasing of coke addition sug-gesting that is possible recover most of the copper content in the slag in the metal phase.Read More
Oct 18, 2009· Environmental impact single data of each process stage is 0.1120, 0.0138, 0.0152, 0.0617, 0.0287, total environmental impact single data of copper-slag is 0.2314. Copper-slag recycle process has not mining process. The total impact single score of copper-slag process is 0.55 times than copper-ore.Read More
Dec 31, 2018· This paper explores the effects of reductant, flux, reduction temperature and reduction time on the iron content and iron recovery rate of the deep reduction product from copper slag …Read More
Copper Slag. We are leading manufacturer, Supplier & exporter of Copper Slag. This product is appreciated for its hardness and free from silica. Our products are made up of using premium quality granulated slag in order to maintain their adherence to universally accepted norms.Read More
Nov 21, 2007· Copper Slag Tailings - How to extract Iron Copper Slag Tailings - How to extract Iron natemclain (Industrial) (OP) 30 Oct 07 09:33. I have tailings that came from a copper extraction process. It is in solid 2" or less in size. We are curious if there is a way to make pig iron with this? And also how to get rid of the SiO2(silica).Read More
The companies give you an opportunity copper slag from 0 to 0 to buy. by date by A-Z by Price. Showing 1 - 12 of 48 results; View: Show by. 2. FEATURED. 10/18/2020 Copper Silver Slag for Sale I have 150 tons of a Ni, Cu, Ag slag. $60 Add to Cart. Save Compare 1. 09/06/2020 Cambodia ...Read More
Jul 08, 2019· Approximately 75 percent of the copper concentrate ends up as slag. The other layer, called "matte copper," consists of copper, iron sulfide and other metals. Converting: Finally, matte copper is converted into a copper-rich slag, which is then returned to the leaching process and separated from “blister copper," which is sent to another ...Read More
Copper Slag Grit ASGRIT ® for use as a blasting medium containing less than 0.5% free silica and 25ppm of chloride and for disposal based on negligible leaching out of heavy metals. Every batch of the finished product is sieve analyzed to ensure that the particle size mix is within ±10…Read More
Less copper mixed with the slag suggests more-efficient smelting, so by tracking changes in the slag, Ben-Yosef and his colleagues could track the progress of a technology that powered the ancient ...Read More
copper is recovered from copper-containing slag by putting the matte and slag in a molten state together in a slag treating furnace at a volume ration of more than 1:5, the melts in the furnace being maintained under agitation so that the slag and matte are in intimate contact so as to efficiently transfer copper from the slag to the matte.Read More
2.1.1 Copper Slag The copperslagfor thisresearchwas obtainedfromanindus-trial copper flash smelting process. The color of the slag was black, and it was dried and ground into fine powder prior to the experiments. For each experiment, the initial slag mass was 13 g. As shown in Table 1 (the elements below 0.1 wt% haveRead More
Copper slag was characterized and processed. The pyro-metallurgical processing prospects to generate utilizable materials were arrived at through rigorous thermodynamic analysis. Carbothermal reduction at elevated temperature (near 1440°C) helped recover a majority of the metal values (e.g., Fe, Cu and Mo) into the iron-rich alloy product ...Read More
3.3 Copper slag Copper slag is a by-product material produced from the process of manufacturing copper. As the copper settles down in the smelter, it has a higher density, impurities stay in the top layer and then are transported to a water basin with a low temperature for solidification. The end product is …Read More
Coal (at 53% fixed carbon) additions varied between 4, 6, 8, 10, and 12 per cent of the mass of the slag. The mode of addition of the coal, and the reduction periods of the tests were also varied (around 30 minutes). The results of the tests are shown in Table III and Figure 7. Table III - Results of 100 kVA Tests on Copper Converter SlagRead More
Pouring liquid copper slag over the components. The operations have been performed in the system similar to technological process realized at KGHM ‘Polska Miedz’. Before smelting, reducers were sub-jected to the agglomeration process in a balling disc us-ing the following parameters: disc rotation = 28 rpm, disc slope angle = 40 degrees.Read More
Aug 18, 2020· How to Melt Copper. Copper is a transition metal that readily conducts heat and electricity, making it a valuable substance in the construction of numerous items. Copper is melted either as ingots for storage or sale, or for casting...Read More
Properties And Effects Of Copper Slag In Concrete 48 Table 2.7 Physical Properties of Coarse Aggregates, Fine Aggregates and Copper Slag Table 2.8 Chemical Analysis of Copper Slag 3 Table 2.9 Mix Proportions (Kg / m3) and Mix Ratio and tested at 7,28 and 56 days of curing in water Table 2.10 Sizes and Types of Moulds Used for Testing III.Read More
The recovery body of copper slag was mainly copper matte, returned to smelting process of copper by means containing acid leaching, flotation recovery and depletion recovery. 3,7,8) Copper slag contains large amounts of fayalite, direct magnetic separation of iron recovery is limited. Recycling method for Fe is mainly roasting-magnetic ...Read More
Aug 01, 2020· The copper is then separated from waste materials and is then refined further through the smelting process. Although copper has been used by humans for many centuries, more than 95% of all the copper ever mined and smelted has been extracted after 1900. Annual copper mining typically exceeds 19 million tons. South America has the most copper ...Read More
A charge of the copper-bearing slag material is treated in the first stage of the process with a hydrocarbonaceous or hydrogenous reductant in a rotary furnace, such as a top-blown rotary reactor, rotating at at least about 10 rpm, to form a high-grade copper matte phase and a slag phase of reduced copper …Read More
Copper slag has been suggested to be potentially useful as catalysts for mercury oxidation in coal combustion flue gas , oxygen carrying agent (Deng et al., 2019), abrasive agent for metal surface ...Read More
Aug 08, 2020· The copper slag, obtained as a by-product from the smelting and refinery process of copper, was used as a stabilization agent in this study. In order to stimulate the pozzolanic activity of the copper slag, hydrated lime powder was used as a supplementary additive. Comprehensive laboratory tests including Atterberg limits, free swell ...Read More
The main use of copper slag is to recycle iron or copper inside. Copper in slag was mainly Cu 2S and little Cu 2O because of the existence of FeS. The recovery body of copper slag was mainly copper matte, returned to smelting process of copper by means containing acid leaching, flotation recovery and depletion recovery.3,7,8) Copper slag con-Read More
Copper smelters and coal-fired electric generating plants are 2 major material sources for these slag products. The chemical characteristics of the copper slags are dependent upon the mineral content of the ore feed, the processing parameters, the completeness of the reduction process, and exposure to contaminants during and after air or water ...Read More
Dec 01, 2020· Investigations of the copper slag influence on the environment indicate that it is not hazardous or toxic and therefore can find a wide application . The copper slag …Read More
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