·The predominant copper process is reverberatory furnace smelting of sulfide concentrates to produce matte and slag followed by treatment of the matte in converters to form blister copper The offgases from the reverberatory furnace are usually not more than 2 percent SO2 and of varying SO2 content from the converters precluding economic
Mróz A Study on the copper recovery from the slag of the outokumpu direct to copper process Metallurgical and Materials Transactions B 45 2014 590 602 [4] S Wang W Ni Wang Li Wang Study of deep reduction process for iron recovery from copper slag Metal Mine 453 2014 156 160
·The work was aimed at the investigation of the influence of the carbon reducer s surface on the rate of copper removal from the slag obtained from the flash direct to blister process at the Głogów smelter in Poland It was found that under our experimental conditions the copper recovery from the slag slightly increases as the slag/carbon interface increases It is
·Materials The smelting slag used in this study was obtained from a copper plant in China Mineralogical analysis performed using scanning electron microscope SEM and energy dispersive X ray spectroscope EDS polarizing microscope and X ray diffraction XRD indicated that fayalite Fe 2 SiO 4 and magnetite Fe 3 O 4 phases were major components
·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 elements which include iron cobalt silica and alumina Slag is a major problem in the metallurgical industries as it is dumped into heaps which have accumulated into millions of tons over the
·Copper slag a by product from copper smelting industry is widely used as an abrasive material to remove rust old coating and other contamination in dry abrasive blasting which is an expensive
·CSFT with 32 52% Fe content is formed after the copper slag flotation process Li and Guan 2009 When iron sulfide is oxidized and doped into the crystal structure of base metals under rapid cooling fayalite 2 is formed as an amorphous phase due to the chemical reaction with silica Yang et al 2010
·Copper is a metal that is widely used in different applications mainly due to its thermal and electrical conductivities together with its corrosion resistance particularly when it is alloyed This chapter intends to be a summary of the copper metallurgy from the historical aspects and mineral deposits or statistics to the different technologies used to produce metallic
·The modification process for copper slag was conducted to improve the recovery of copper and iron with the optimized conditions at binary basicity 12% compound additive modifying at 1350 °C for 120 min and cooling at °C/min down to 900 °C The physical beneficiation studies showed that compared with unmodified slag copper grade
Copper Slag a Superior Sandblasting Media Replacement Abrasive sandblasting media has been used for years for cleaning and surface finishes in both the industrial and construction industries including products such as corn cob steel grit aluminum oxide walnut shell crushed glass pumice steel shot silicon carbide black slag and more
·In this study the thermodynamic simulation model and system of the copper side blown smelting process were established using the chemical equilibrium constant method based on the process reaction mechanism multiphase equilibrium principle and MetCal software platform MetCal Under typical production conditions the composition of the product
3 ·The utilization of copper slag as a replacement for fine aggregate in concrete not only addresses the issue of waste disposal but also contributes to resource conservation and reduces the carbon footprint associated with traditional construction practices Figure 1 shows the process of the flow chart for experimental design mathematical
·OXIDATION KINETICS OF COPPER SLAG Assoc Prof Dimitar Georgiev PhD Department of Material Sciences Assen Zlatarov Univesity Bourgas The process of slag oxidation isaccompanied by structural transformation and formation ofstructure of ordered platelike crystals of hematite magnetite PROCEEDINGS OF UNIVERSITY OF RUSE 2017
·A technological scheme for copper slag processing is proposed It comprises 5 stages namely i air oxidation of the copper slag at a temperature above 800 °C for 2 h; ii hydrothermal treatment of the oxidized slag with sodium hydroxide solution 140 g/l at 190 °C for 3 h; iii separation of the solid from the liquid phase by hot filtration; iv gel formation through
Mróz A Study on the copper recovery from the slag of the outokumpu direct to copper process Metallurgical and Materials Transactions B 45 2014 590 602 [4] S Wang W Ni Wang Li Wang Study of deep reduction process for iron recovery from copper slag Metal Mine 453 2014 156 160
Copper slag can be treated as a secondary resource since it usually contains a substantial amount of copper and other valuable metals Characterization of the slags to determine the expected metal recovery is essential for the design of separation flow sheets Lotter Modern Process Mineralogy An integrated multi disciplined approach
·During copper matte smelting a lag exists in the analysis of the smelting results leading to the production parameters not being effectively adjusted in time As the first smelting process in copper pyrometallurgy the optimization of the amount of raw material as well as the prediction and adjustment of slag and matte phases has become an extremely important step
·Replacement of cement by solid wastes is an effective method to utilize secondary resources and reduce CO 2 emissions In this study copper slag CS and granulated blast furnace slag GBFS were used to replace cement to address the low activity of CS which limits its large scale utilization
·The valuable metals copper and zinc were successfully recovered from a water quenched lead smelting slag containing zinc in Gansu Province This study focuses on the application of the direct reduction roasting flotation process for extracting these metals from the slag phase To comprehend the recovery principle of copper and zinc minerals in the slag
Copper slag can be treated as a secondary resource since it usually contains a substantial amount of copper and other valuable metals Characterization of the slags to determine the expected metal recovery is essential for the design of separation flow sheets Lotter Modern Process Mineralogy An integrated multi disciplined approach
·The amount of copper flash smelting slag has increased during the recent years along with an increasing slag to metal ratio During slag tapping some copper sulfide is mechanically entrained As a result it is necessary to recover copper matte from the slag by suitable methods At present the most common way is slow controlled cooling in a transfer
·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 decomposition
·Comprehensive Utilization of Copper Slag 277 Table 1 XRF elemental analysis of the copper slag Element O Ca Mg Al Si Fe Co Ni Cu S Content wt % 0
·Materials Industrial slag modification occurred batchwise in a fuming furnace where electric smelting furnace slag was treated under reducing conditions to recover zinc [] After finalizing the process the slag was tapped with a slag runner from the fuming furnace into a settling furnace where the slag was held as entrained copper droplets settled
