A dynamic process model of submerged plasma zinc fuming process is developed in FactSage 7.0 based on the industrial scale fuming furnace at Metallo Belgium. Several batches of industrial slag fuming have been simulated using the model. To understand the rate-limiting factors of Metallo's slag fuming process, two scenarios …
Slag fuming is a reductive treatment process for molten zinciferous slags for extracting zinc in the form of metal vapor by injecting or adding a reductant source such as pulverized coal or lump coal and …
DOI: 10.1016/j.ceramint.2023.11.072 Corpus ID: 265202940; Study on performance and mechanism of ed ceramics based on lead fuming furnace slag @article{Zhang2023StudyOP, title={Study on performance and mechanism of ed ceramics based on lead fuming furnace slag}, author={Ning Zhang and Feng Xie and …
(slag) + C 2FeO + CO (g) Figure 1 below gives an illustration of the zinc fuming within an Ausmelt furnace. The lance delivering fuel, oxygen and air combusts in the reaction zone of the slag ...
Reddy et al. [13] investigated the kinetics of zinc fuming from lead blast furnace slag with iron oxide and carbon. Since several authors widely discussed the benefits of slag bath agitation on ...
The Slag Fumer is the first Ausmelt furnace system adopted at the Onsan Refinery of Korea Zinc. This plant continuously treats the QSL lead smelting slag in the molten state. It has developed progressively since its first commissioning in October 1992 and has generated a confidence that it can produce an environmentally acceptable slag …
This paper introduces the process of treating zinc residue by side-submerged combustion furnace and fuming furnace developed by ENFI and makes a detailed comparison with …
The slag from zinc fuming furnace is tapped into a gas-fired holding furnace where copper matte and waste slag are separated. The total cycle time for the process is about 165 minutes. A process flow diagram of the zinc fuming plant, prepared during the inspection, is shown in Figure 8. ...
Slag fuming is a process of extracting zinc from molten slag in the form of metal vapor by injecting or adding a reducing source such as pulverized or lump coal, natural gas, etc. Top Submerged Lance (TSL) technology has been successfully applied to extract zinc by a fuming process from residues from the zinc industry, ISF and QSL slag and Lead blast …
Recovery of zinc from slag is typically carried out via a slag zinc fuming operation, where a reductant is used to reduce zinc oxide and volatilize zinc metal. In …
By introducing a fuming process for treating rich slag in place of a blast-furnace process the separation of tin from iron has been solved. Thus, the two-stage smelting has been changed to a one-stage smelting and fuming scheme. ... Since the 1960s the lower-grade concentrates have been treated directly in a fuming furnace to make concentrate ...
In this work, pyrometallurgical treatment of non-ferrous iron residue was studied. This approach aimed to recover the valuable metals and convert the residue into reusable benign slag using hydrogen as a non-fossil reducing agent. The pyrometallurgical treatment for this type of residue involves pretreatment prior to two stages, oxidation and …
related to slag-fuming kinetics and details of fluid dynamic behavior inside the slag-fuming furnace have been found in the open literature. The earliest studies were performed in the 1950s by Bell et al.[6] and by Kellogg[7,8] and in 1960s by Quarm[5,9,10] to investigate the details of slag-fuming behavior. Later on, Richards
As mentioned by Richards et al. [12], the slag fuming furnace of company D has a length of 4.57 m and width 2.44 m (4.57 x 2.44 m2), containing 30 tuyeres with 56 mm ID for each tuyere. Owing to the computational time limitations, the present study dealt with a thin slice model with two opposing set of tuyeres. A slice of 0.3 m length was ...
Fuming furnace used to be the equipment for processing lead blast furnace slag. In 1962, it was used for processing tin-making furnace slag in China, where the fume of 50% tin content was generated and the tin content of slag was reduced from 3% to 0.1%.
During the 1920s ASARCO was the largest mining operator in Mexico, with twenty-four different units. In 1948 slag fuming facilitators were built for the recovery of …
The Slag ing Practice in EAF and Its Influence on the Steelmaking Shop Productivity ... l994 accepted in final form on April 24. l995) IMEXSAsteel has a four electric arc furnaces (EAF) steelmaking shop …
in a kiln. What appears to have been the first slag fuming operation as it is known was commenced by the Anaconda Copper Mining Co. at East Helena, Mont. in 1927: The first Trail furnace was completed in 1930, and this was followed by the construction of several other slag-fuming plants. During the period in which slag fuming has been
These slags are treated in a slag fuming furnace, where the ZnO undergoes an endothermic reduction reaction by metallurgical coal and Zn is evaporated and recovered either as metal or zinc oxide...
Lead fuming slag and waste glass were dried to constant weight in a vacuum drying oven at 110 ± 5 °C for 6 h in order to remove residual water. ... The four groups of samples were melted in a furnace with a heating rate of 7 °C/min and homogenized at 1400 °C for 1 h. The melted glass liquid was rapidly poured into a steel …
Process Description. Slag fuming is a well-established process, soon celebrating its 100th anniversary since the launch of the first commercial furnace. 1 The process was initially developed to extract Zn from the slags of the lead-blast furnace and was used for Zn-rich slags; these days it is increasingly used for the extraction of a …
The QSL Lead Slag Fuming Process Using an Ausmelt Furnace. Myung Bae Kim. Korea Zinc Co., Ltd. 142 Nonhyun‐Dong, Seoul 135–749, Korea. Search for more …
Valayapetre et al. have reported that the fuming of tin ore containing 10–12% Sn can be performed efficiently using gypsum as the fuming agent at a lower slag melting point and lower slag viscosity. The experiments were conducted at 1100–1160 °C for 6 h in a mini-reverberatory furnace where the amount of feed for each experiment was 2.4 kg.
Abstract—Slag fuming is a process of extracting zinc from molten slag in the form of metal vapor by injecting or adding a reducing source such as pulverized or lump coal, natural gas, ... since 1930s to recover zinc from lead blast furnace slag [1]. It is mostly a batch process, in which a reducing mixture of air
freeze linings for slag fuming furnaces. The effect of sulfur on the rate of reduction of zinc oxide from slags was studied by Dal and Rankin.[15] Subsequent industrial studies have followed the ...
The QSL Lead Slag Fuming Process Using an Ausmelt Furnace. Myung Bae Kim. Korea Zinc Co., Ltd. 142 Nonhyun‐Dong, Seoul 135–749, Korea. Search for more papers by this author. Woll Seung Lee. Korea Zinc Co., Ltd. 142 Nonhyun‐Dong, Seoul 135–749, Korea.
The slag is discharged from the slag tap into the fuming furnace, and the lead alloy is discharged from the siphon mouth at the end of the furnace. The carbon monoxide produced in the furnace is oxidized by the secondary air blown in hearth the space. The high-temperature fume is cooled in waste heat boiler, purified and dedusted …
A regular fuming furnace charge is four ladles of slag. When the fuming plant operators know the amount of slag that is to be available, they decide how many charges to make in the two fuming fur naces. This is based on the amount of slag in the holding furnaces as well as the amount expected from the reverberatory furnace. The two fuming ...
Proceedings of the World Congress on Engineering 2010 Vol II WCE 2010, June 30 - July 2, 2010, London, U.K. A Computational Fluid Dynamic Modeling Study of Slag Fuming in Top Submerged Lance Smelting Furnace Nazmul Huda, J. Naser, G. Brooks, M. A. Reuter, R. W. Matusewicz Abstract—Slag fuming is a process of extracting zinc from …
Article Zinc Fuming from Lead Blast Furnace Slag was published on April 1, 2002 in the journal High Temperature Materials and Processes (volume 21, issue 6).
Abstract—This paper describes a review of the potential use of High Strength Incorporating Ground Granulated Blast Furnace Slag and Steel Fiber Reinforced Concrete used in construction industry...
Slag fuming is a reductive treatment process for molten zinciferous slags for extracting zinc in the form of metal vapor by injecting or adding a reductant source such as pulverized coal or lump coal and natural gas. ... model was developed to study the zinc slag fuming process from imperial smelting furnace (ISF) slag in a top-submerged lance ...
Slag fuming is a reductive treatment process for molten zinciferous slags for extracting zinc in the form of metal vapor by injecting or adding a reductant source such as pulverized coal or lump coal and natural gas. A computational fluid dynamic (CFD) model was developed to study the zinc slag fuming process from imperial smelting furnace (ISF) slag in a top …
a soda slag. .Much larger rotary furnaces of a straight-through firing design (8 meters by 3.60 meters), and ... followed by fuming to produce a discardable slag as the second stage, was best solution for the treatment of low-grade tin concentrates with a high proportion of iron to tin. When fuming Is conducted
Slag fuming is an important technology for processing Pb and Zn blast furnace slags. [1,2] It can be employed to extract considerable amounts of valuable metals (Zn, Pb, Cu, In, and Ge), allowing to produce a clean slag for added-value applications, such as novel inorganic polymer materials. []As one of the technologies available on an …
Furthermore, by processing of solid slag, the fuel consumption would be reduced by 1.5 times compared to the one in the fuming furnace processing melted slag. It would also be 3- 4 times lower ...
A general dynamic model of the plasma-driven slag fuming process has been developed in FactSage 7.0 based on Metallo Belgium's industrial-scale submerged plasma slag fuming furnace.
Slag fuming is a reductive treatment process for molten zinciferous slags for extracting zinc in the form of metal vapour by injecting or adding a reductant source such as pulverized …
Cement additives. Johannes Fink, in Petroleum Engineer's Guide to Oil Field Chemicals and Fluids (Third Edition), 2021. Furnace slag. A furnace slag cement slurry can have a density of 1500-1600 kg m −3.A combination of silica flour and furnace slag may be used to achieve service temperatures exceeding 200 °C [100].A gas may be suitable as a …