Double-slag refining process

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August undefined, 2024

WebJan 5, 2012 · Slag-remaining and double slag steelmaking technology in one converter (MURC) (Ogawa et al., 2001). 1. ... It used a premelted refining slag in the ladle on which liquid steel was poured from the furnace. The process thus utilized the kinetic energy of the tapping stream to mix the steel and slag to an emulsion in the ladle. ... Development of ... WebJul 4, 2024 · JFE Steel Uses Double-Slag Refining to Cut CO2 Emissions Japan’s second largest steel maker JFE Steel Corporation has announced that increased use of scrap …

(PDF) A Review of Multi-phase Slag Refining for

WebFire refining and electrolytic refining are used to purify blister copper even further. In fire refining, blister copper is usually mixed with flux and charged into the furnace, which is maintained at 1100°C (2010°F). Air is blown through the molten mixture to oxidize the copper and any remaining impurities. The impurities are removed as slag. WebMay 1, 2024 · For current converter steelmaking method (such as single slag method, double slag method and duplex process), the Si content of hot metal is below 1.0 mass%. When Si content of hot metal is higher than 1 mass%, more lime should be added to modify the basicity of slag. ... After refining in BOF 1, the silicon content of the semi-steel is … clock and the cat podcast

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WebLC Refining Page 10. 4. Theory of Refining . i) Qualitative Analysis . In this section, the details of stock preparation refining process will be examined more closely. It will be … WebThe remaining slag is cooled, ground, and combined with water and chemicals that facilitate flotation. ... dewatering, and concentration. Leaching is used to recover copper from slime, a byproduct of electrolytic refining. In this process, sulfuric acid is circulated through the slime in a pressure filter. Copper dissolves in the acid to form a ... Electroslag remelting (ESR), also known as electro-flux remelting, is a process of remelting and refining steel and other alloys for mission-critical applications in aircraft, thermal power stations, nuclear power plants, military technology and others. The electroslag remelting (ESR) process is used to remelt and refine steels a… clock and temperature display on desktop

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WebThe principle of tin smelting is the chemical reduction of tin oxide by heating with carbon to produce tin metal and carbon dioxide gas. In practice, the furnace feed contains the tin oxide concentrate, carbon in the form of anthracite coal or coke, and limestone to act as a flux and a slag-producing agent. In a typical reverberatory process ... WebThe LF refining process therefore involves multiphysical phenomena and multiphase reactions. Computational modeling can offer an efficient and useful approach to … bobwyman comcast netWebApr 14, 2024 · The side-blown bath smelting process involves gas–slag–matte three-phase flow, ... : Wu X, Wang S, Hu J, Wang H, Xiao Q, Deng G and Li D (2024) Analysis on … clock and thermometer for golf cart

"WebBasic oxygen steelmaking (BOS, BOP, BOF, or OSM), also known as Linz-Donawitz steelmaking or the oxygen converter process is a method of primary steelmaking in which carbon-rich molten pig iron is made into steel.Blowing oxygen through molten pig iron lowers the carbon content of the alloy and changes it into low-carbon steel.The process is … " - Double-slag refining process

Double-slag refining process

Kinetic model of dephosphorization in the new double slag …

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WebMentioning: 2 - Considering the importance of dephosphorization process in ironmaking and steelmaking, this paper attempted to estimate the phosphate capacities of different systems. Mass triangle model could approach the properties of multi-component systems without the parameter for every component. This present work also extended the mass triangle … WebMar 2, 2024 · Therefore, the steelmaking process is divided into two steps: primary smelting and refining. Primary refining: The charge is melted, dephosphorized, decarburized and main alloyed in an oxidizing atmosphere furnace. Refining: Degas, deoxidize, desulfurize, remove inclusions and fine-tune components in a container of vacuum, inert gas or …

Web2.4.4 Electroslag refining (ESR) grades. Electroslag refining (or remelting) (ESR) has been used to produce cleaner steels with more uniform composition than conventional, even … WebAug 8, 2024 · The kinetic investigation of the dephosphorization in the new double slag converter steelmaking process was carried out based on the coupled reactions model …

WebAug 8, 2024 · The kinetic investigation of the dephosphorization in the new double slag converter steelmaking process was carried out based on the coupled reactions model combining with a heat balance temperature model for the 220-ton industrial experiment. The calculated results of [%C], [%Si], [%P] in the hot metal, and the slag compositions are in … WebIn the LD (Linz–Donawitz) converter process, pure oxygen is blown on a molten iron bath for refining purposes. Elements dissolved in the molten iron, e.g. C, Si, Mn and P, but also part of the molten iron itself are oxidised. They form either a slag phase covering the hot metal or, in the case of C, gas bubbles containing CO and CO 2.

WebOct 9, 2024 · Picture 1, typical ladle furnace. 2) Vacuum treatment. a) VD and VOD process. Whenever a higher melt purity and a reduction of non-wanted steel elements are needed, a vacuum melt treatment is ...

clock and sleep impact factorWebThe furnace. The electric- arc furnace (EAF) is a squat, cylindrical vessel made of heavy steel plates. It has a dish-shaped refractory hearth and three vertical electrodes that reach down through a dome-shaped, removable roof (see figure ). The shell diameter of a 10-, 100-, and 300-ton EAF is approximately 2.5, 6, and 9 metres. bob wyatt cricketerWebAug 1, 2013 · To produce the steel with phosphorus less than 0.007% (mass percent), the double slag process has been optimized in basic oxygen furnace (BOF). … bobx024ccWebThe oxidation of carbon and silicon and optimization of dephosphorization during the refining process were studied through industrial practice and theoretical calculation. The results show that the optimum residual content of silicon in liquid steel at first slag making phase is about 0.05–0.07 mass%. bob wynne attorneyWebNov 1, 2024 · Global Nickel (Ni) smelters’ have been experiencing profit losses for nearly a decade due to the 2008 recession still impacting the industry, oversupply, and fluctuating ore quality. This paper proposes to aid the Ni smelters with the lattermost issue, presenting an optimum pricing index model for purchasing raw Ni ore materials. The model is … clock and temp to put in potted plantWebJan 5, 2024 · A low-basicity slag (~1.5–2.0) in the dephosphorization stage is required in double-slag process. The dephosphorization ratio reached a maximum of 71 % when the slag basicity was 1.7. The end ... clock and thermometer insertsWebearly stage of converter steelmaking process and conclu-ded that the double slag-retaining method can reduce the consumption of raw materials by lowering the phosphorus content of steel. K. Yoshida[11] developed a simple refining process (SRP) by using two 250t capacity top and bottom Aonan Zhao, Liqiang Zhang, Naqash Ali, Chaojie Zhang bob wykel body found