Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
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By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
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Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
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Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
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The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
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Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
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The discovery of oil and gas in Ghana means that Ghana can produce electricity locally and save about $350 million annually (if production even meets a third …
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A recent attempt to employ industrial slag in thermal spray application was made by Kucuk et al. who deposited ferrochromium (FeCr) slag on AISI 420 substrates with APS method to evaluate its high temperature oxidation performance for use on caster rolls as an alternative to commercially available top coating feedstock materials [98 ...
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Slag sources, properties, and studies of beneficial application are reviewed. Steel slag utilisation would increase if the P and Fe phases in slag can be separated at …
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Fig. 3 shows the DTA/TG determination where the slag at 30°C/min is a very stable glass because it does not show clear exothermic peaks. The wide endothermic band around 500–550°C correspond to the glass transformation temperature as is usual in glasses [9].Finally, close to 950°C, there is a small endothermic indicating the starting of …
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Steel slag is a byproduct of the steelmaking and steel refining processes. This paper provides an overview of the different types of steel slag that are generated from basic-oxygen-furnace (BOF) steelmaking, electric-arc-furnace (EAF) steelmaking, and ladle-furnace steel refining processes.
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Carbon mineralization technology has emerged as a promising method for permanently sequestering CO 2 by transforming it into a thermodynamically stable solid carbonate material. Recently, alkaline industrial waste, particularly from steel and iron-making processes, has been identified as a proper feedstock due to its high potential for …
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In response to the pressing global issue of reducing carbon emissions and the crucial technical challenges of fully utilizing steel slag, researchers have been studying an accelerated carbonation process that entails the carbonation of basic oxides in steel slag to store CO 2.However, despite its promising potential, the process has yet to see …
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The physico-chemical properties of four different types of iron and steel slags, including blast furnace slag, basic oxygen furnace slag, electric arc furnace slag, and …
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However, Ghana's industrial production is rising at a 7.8% rate, giving it the 38th fastest growing industrial production in the world due to government industrialization policies. Ghana's most important manufacturing industries include light manufacturing, aluminum smelting, food processing, cement, and small commercial ship building.
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With the rapid development of China's steel industry, rising rates of steel production have led to the increase of steel slag emissions. Steel slag is a kind of industrial solid waste produced in the process of iron and steel smelting, and its emission is about 15 wt%–20 wt% of crude steel output [].According to the data released by the …
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The main challenge of the steel industry for the next decade is the steel production transformation process, starting in Europe. The CO 2 intensive blast furnace/basic oxygen furnace (BOF) route will be substituted by a combination of Direct Reduced Iron (DRI), based on natural gas, later on "green" hydrogen, with an Electric Arc Furnace (EAF) or a …
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Slag is the by-product of iron- and steelmaking processes. Normally, around half to one tonne of slag would be generated for yielding one tonne of rolled iron or steel (Lobato et al. 2015).It was reported that the world steel production was 1.9 billion tonnes in 2016, which suggested that at least around 1 billion tonnes of slag is produced during …
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Many restrictions exist, however, on the utilization of steel slag. When steel slag is used internally, in steel plants, the most obvious problem is that of the enrichment of P and S (Drissen et al., 2009).The Bhilai Steel Plant in India was shut down because of its high S and P content (Das et al., 2007).The amounts of free lime and free MgO are …
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Introduction. China is the world's largest steel producer, with the China Iron and Steel Association estimating that the country's crude steel production in 2022 will be 935 million tonnes [Citation 1].Steel slag mainly refers to the blast furnace slag and converter slag produced in the process of iron making and steel making, and with the …
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This dry process developed by Loesche for recovering metals from steel slag combines all the advantages of conventional processes: Efficient and cost-effective metal recovery in the coarse range Virtually metal recovery down to the finest fractions range by means of optimised dry grinding, classification and sorting technology
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It has been estimated that for every tonne of copper production about 2.2 ton of slag is generated and in each year, approximately 24.6 million ton of slag is generated from world copper production. The major slag producing regions with quantities is given in Table 1. Slags containing <0.8% copper are either discarded as waste or sold …
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Achieving low-carbon development of the cement industry in the developing countries is fundamental to global emissions abatement, considering the local construction industry's rapid growth.
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Looking at the merits and associated benefits, some of the top steel-producing countries have adopted or upgraded with a recycling technique of steel slags from time to time for various applications (as shown in Fig. 3), such as for road construction, soil enrichment, cement production, etc. Notably, recycling steel slag for a particular …
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Request PDF | Comparison of sugarcane bagasse ash with fly ash and slag: An approach towards industrial acceptance of sugar industry waste in cleaner production of cement | Use of blended cement ...
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Carbide slag (acetylene sludge) is the industrial residue, which is discharged when the hydrolysis of calcium carbide is undertaken to prepare acetylene. ... enterprises with the small scale of production of PVC using carbide process are encouraged to fully utilize carbide slag by cooperating with the cement enterprises or …
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The final clinkers synthesised were comparable in terms of phase assemblage and performance, yet, data herein suggested Please cite this article in press as: Iacobescu, R.I., et al., Ladle metallurgy stainless steel slag as a raw material in Ordinary Portland Cement production: a possibility for industrial symbiosis, Journal of Cleaner ...
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A statistical analysis by EUROSLAG 67 shows that only 6 % of steel slag is used for global cement production. Utilizing steel slag as a replacement in cement production or as a replacement for cement used in the concrete industry could significantly reduce CO 2 emissions 68-72. Fig.
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For existing coal-fired power plants, current methods of utilizing ash and slag waste may be considered in addressing new environmental and economic risks. However, for new power sources, environmental considerations are much more important in selecting the coal-combustion technology. Technology based on a circulating fluidized …
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3.3. Physical properties. The typical copper slag is generally black or dark brown in colour and its density is in the range of 3.2 – 4.5 g/cm 3, mainly depending on the content of Fe (Sarfo et al., 2017b).The average true density of copper slag is approximately 3.8 g/cm 3, which is denser than the ordinary natural aggregates (Shi et al., 2008). ...
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The pilot trial of detoxification of chromium slag in cyclone furnace and production of slag wool fibres were investigated in a power plant in China. 10–30 wt.% chromium slag was mixed with pulverized coal and 0–10 wt.% limestone as the raw materials of the cyclone furnace. ... Fiber production from inorganic industrial solid …
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Metallurgical slags are now generated in excess of 750 million tonnes annually. Slags being discharged at temperatures typically above 1200 °C carry a …
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Steelmaking plants continuously strive to reduce the environmental load in the steelmaking process, resulting in the recycling of energy, water, and other byproducts. In this chapter, techniques for the …
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PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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