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·Slag analyses from archaeological iron smelting sites are common Rigorous analyses of iron and slag from successful experimental smelting however are still rare Furthermore thorough analyses from a series of smelts and of the slag produced in different phases of the smelt are exceedingly rare The present study investigates the effect of an iron
·The Tamano Smelter of Hibi Kyodo Smelting CO Ltd went into operation in 1972 The Flash Smelting Furnace that was originally adapted was equipped with electrodes that were attached to the settler substitute of the slag cleaning furnace Later the development of our own original coke combustion technology was promoted and a new Tamano Type Flash
·In both primary and secondary lead smelters significant quantities of lead are discharged into the environment each year Without the use of a settling or zinc fuming furnace slag is discharged from the smelter containing between and 3 wt% Pb [] This results in a smelter discharging significant quantities of lead into the surrounds each year
·Pyrometallurgical cleaning of copper slags involves inducing conditions that encourage suspended matte Cu 2 S droplets to settle into the matte layer The conditions are achieved by creating a low slag viscosity low bath turbulence longer residence time and a thin slag layer Guo et al 2016 These conditions are often difficult to obtain in the main smelting
· article{Klumpp2003BioindicationOA title={Bioindication of air pollution effects near a copper smelter in Brazil using mango trees and soil microbiological properties } author={Andreas Klumpp and Therese Hintemann and J S Lima and Ellen Kandeler} journal={Environmental pollution} year={2003} volume={126 3} pages={ 313 21 } url={https
·The copper slags with different addition levels of 15 30 and 45 wt % were mixed into a typical Portland cement Water was added into the mixture of cement and copper slag to achieve the moisture
·The matte grade affects slag blowing times and the copper in slag content in the PSC Feed rate affects the overall schedule and overall production rate The circulated slag from AF or from copper blow shortens the required slag blowing times and in creases copper content in PSC slag but has a cooling effect as well The actual bottleneck of the
·A mixed culture of iron oxidizing acidithiobacilli and Alicyclobacillus spp was previously enriched from a smelter slag lagoon site and tested for the bioleaching of Cu and Zn from a smelter slag sample in a bioreactor system Kaksonen et al 2016 In the present study a mixed bacterial culture originally enriched from a polymetallic sulfide
·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 [3 4] Only 15% of the CUS
·Disposal of slag is problem and a waste when disposed without recovery of any viable metals from the initial process Investigation the dump of BCL will be necessary cost â reduction/injection for the plant Fig 2 a Copper slag Copper pyro metallurgical slags are inevitable waste by â products of copper smelting operations
·In the first stage the slag blow process air with limited oxygen enrichment % O 2 was used to produce white metal with % Fe The slag with iron to silica ratio of and % Cu was poured to ladles slow cooled and sent to a slag concentrator Small metallurgical coke addition was used during the slag blowing
·Although ammonia leaching of copper from slags has been reported generally as a part of copper slag utilization methods but no detailed studies have been reported in the literature In this research we tried to investigate the effect of different parameters on ammonia leaching of copper from copper smelting slag by identifying different copper bearing phases
·Bioaccessible lead in soils slag and mine wastes from abandoned mining district in Brazil Environ Geochem Health 30 2008 pp 219 229 /s10653 007 9110 4 View in Scopus Google Mineralogy and the release of trace elements from slag from the Hegeler Zinc smelter Illinois USA Appl Geochem 25 2010 pp 302 320 /j
The capacity of this smelter is 300 kt/y it and entails concentrate smelting in one Teniente Converter TC of 4 x 15 m the converting of copper matte in two Peirce Smith converters PSC and the recovery of some valuable metals from slag in one electric slag cleaning furnace SCF Devia Parra Queirolo Sánchez and Wilkomirsky 2019
·1 Introduction Based on the research conducted on the possible application and utilization for the copper slag incurred worldwide the setting up of Database of Mansfelds copper slag was initiated and featured its diverse profile Zobel 2016 The interesting investigation of the using of copper slag % together with WIP fly ash from waste
·designed to process smelter slag have extensive milling circuits that enable the plants to achieve grind size of over 70% passing 75 µm and yielding recoveries as high as 80% Shamsi et al 2015 503 Much of the Nkana smelter slag originated from reverberatory furnaces with a lesser proportion coming from the converting process since in
·The stability of black cotton soil soil has piqued the curiosity of numerous researchers The study of application of copper slag in embankment by researchers were tried in the past
·A field study near the copper smelter of a large industrial complex examined air pollution effects on vegetation and soil parameters in Camaçari northeast Brazil
·The Okiep Copper District is located 600 km north of Cape Town in the north western part of the Northern Cape Province South Africa and includes the towns of Springbok Okiep Nababeep and is the oldest mining district in the country and has been a copper producer for more than 150 smelters have been in operation at several
·The chemical analyses indicated that both studied wastes are Si Fe and Mg rich materials but their proportions of trace elements are significantly different Table 1 Whereas slag is richer in Cr 7580 mg/kg fly ash is enriched in Ni wt% Co 488 mg/kg and Zn 462 mg/kg Table 1 Significantly higher concentrations of C and S in the fly ash Table 1
A field study near the copper smelter of a large industrial complex examined air pollution effects on vegetation and soil parameters in Camaçari northeast Brazil Close to the smelter soil pH value was lower and total acidity as well as organic carbon contents were higher compared with a
Historically at least two smelters discharged slag to the river including the Trail smelter Slag is a granulated by product of the smelting process that does not present a human health risk It is a glass like compound consisting primarily of silica calcium and iron which contains small amounts of base metals including zinc lead copper
·Alcoa announced that it will restart aluminum production at the Alumar #smelter in São Luís Brazil with the goal of making the first molten metal in the second quarter of 2022 Our restart decision is based on a comprehensive analysis that shows the smelter can compete throughout all cycles leveraging the co located refinery and
·Increased demand of copper in the last few decades resulted in the generation of a large amount of smelter slag About 80% of the world s copper to date was produced from sulfide ores by concentrating followed by the pyrometallurgical operations such as smelting and refining Heimlich et al 2010 Fan et al 2014 While slag from blast furnace in iron making
