·DOI / Corpus ID 265458740; Two stage method recovery of metals from copper slag Realize the resource utilization of all components article{Wang2024TwostageMR title={Two stage method recovery of metals from copper slag Realize the resource utilization of all components} author={Lanbin
·The obtained copper cathode product was dissolved and the Cu 2 concentration in it was detected up to % and there are almost no impurity ions Therefore high purity cathode copper products can be obtained by electrochemical deposition enrichment and selective recovery of Cu in CuS slag with Cu recovery of over
·The copper converter slag used in this study was supplied by a copper smelter located in Guangxi Province China The high contents of valuable metals in the slag including wt% Cu wt% Co and wt% Sn Table 1 indicate a recycling was warranted Others in Table 1 mainly included oxygen which combined with Fe Cu
·The results show that % Cu in copper slag can be recovered in 5 min under a high gravity field at 1250 1300 °C However realizing a large scale industrial expansion of high gravity equipment will be extremely difficult Guo et al used the smelting reduction and vulcanization process to recover Cu from copper slag
·The optimum digestion temperature is 250oC at which a high recovery of copper from copper slag is achieved Figure 7 Copper in the residue at various digestion temperatures Effect of Digestion Time at 250oC Figure 8 shows that 2 hours of digestion at 250oC was adequate 0 20 40 60 80 100 120 140 160
·The results show that the Fe recovery ratio of the copper slag is % and the Fe grade is % under the optimal conditions for roasting reduction The process of recycling Fe from copper
·In Fig 3 it can be seen the rapid decreasing of copper content in the slag during the first 15 min of reduction while the iron concentration is maintained almost constant over same period of time suggesting that a selective reduction according to the thermodynamic stability of both compounds is possible Also this figure shows that
·Copper slag from an operating plant was used in this study The copper slag was granular with particle size ranging from to mm The slag was thoroughly characterized using various methods X ray diffraction XRD of the slag sample was carried out with a Rigaku Ultima IV X ray Diffractometer using Cu K α radiation at 40 kV and 40 mA
·During smelting copper slag is generated in the form of matte and a higher copper content in the slag will give a higher matte grade Even after dilution the copper content in slag can remain
·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
·Recovery of Zn Cu and Fe from the copper smelter slag was studied • Slag was treated with NH 4 Cl at 320 °C and product was subjected to water Metal recoveries to the solution were % Zn % Cu and % Fe
·Aiming at the recovery of copper from smelting slag a flotation approach was studied It was found that this slag composed of fine particles with complex association and distribution in which bornite was the main copper bearing mineral after a detailed mineralogy analysis via polarizing microscope SEM and XRD Consequently flotation
·Copper slag is not only a waste but it has many valuable and recoverable metals present in it such as iron Therefore this study focuses on the utilization of waste materials copper slag and tire char for iron recovery Four calcium salts CaCO3 Ca OH 2 CaCl2 and CaSO4 with different dosages reduction temperature reduction
·Copper slag has long been the subject of metal recovery However it has become apparent that copper slag flotation tailings can meet resource requirements under certain circumstances
·Reclamation of copper from copper smelting slag has long been the strategy to improve the recovery ratio for copper smelters; however it is hindered by the precipitated Fe 3 O 4 particles in the molten slag 5 6 Firstly the entrained copper in the slag is high up to % greatly exceeding the mining grade of copper ore % 7
·Recovery of copper and cobalt from smelter slag using reductive sulfurizing smelting method was performed in this study The effects of reductive agent coke sulfurizing agent pyrite slag
Recovery of valuable metal from copper electric furnace slag CEFS is of great interest for saving minerals and reducing pollution XRF XRD mineral liberation analysis MLA and batch tests were conducted to investigate the mineralogical and recovery of copper and iron from CEFS Based on the mineralogical characteristics a flotation and magnetic
·Several researchers investigated leaching of copper slag for recovery of copper cobalt and other metals in sulphate chloride ammonia cyanide and other lixiviant systems Banza et al 2002
·To maximize the recovery of iron and copper from copper slag the modification process by adding a compound additive a mixture of hematite pyrite and manganous oxide and optimizing the cooling of the slag was studied The phase reconstruction mechanism of the slag modification process was revealed by
A novel technology modified roasting in CO CO2 mixed gas and magnetic separation was presented to recover iron from copper slag The effects of various parameters such as dosage of flux CaO gas flowrate of CO and CO2 roasting temperature roasting time particle size of modified slag and magnetic flux density on the oxidized modification and
·The most suitable conditions for the reduction of copper slag comprised a temperature of 1450 °C an alkalinity of and a reducing agent ratio of This newly developed process was found to recover % of copper and iron from the slag along with % of lead and % of zinc
·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
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