Double-slag refining process
WebApr 28, 2014 · AOD process refining has three major steps. These are (i) decarburization, (ii) reduction, and (iii) final chemistry and temperature trimming. ... In modern practices a sulphur level of 0.001 % or less is … WebThe 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.
Double-slag refining process
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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 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 ...
Webrefining of lead compounds to produce lead. Modern direct smelting processes include QSL, Kivcet, AUSMELT, and TBRC. Primary Lead Processing The conventional … 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 …
WebJan 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 ... WebNov 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 …
Webwhen steel making process in furnace primary impurities makes a slag which is tapped out and then secondary impurities makes a slag The difference between melting point of …
WebApr 8, 2024 · A tapping process model of the steel from the basic oxygen furnace (BOF) addressing the reactions in the ladle is proposed. In the model, the effective equilibrium reaction zone (EERZ) method is applied to describe the steel/slag interfacial reaction. The equilibrium reactions in the bulk steel (steel/inclusion/lining wear) and slag (liquid … boise id fishingWebAug 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). … glow through it podcastWebMentioning: 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 … boise id earthquakeboise id footballWebBasic 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 … glowthyWebDouble digging is a gardening technique used to increase soil drainage and aeration. ... This process is repeated until the whole bed has been treated. There will be soil left … boise id football teamWebIn operation, the process involves the proportioning, drying, and mixing of the lead-bearing materials and fluxes, followed by their injection into the reaction shaft, where they are ignited by a heated blast of commercially pure oxygen. The smelted lead bullion and slag collect in the hearth, while zinc vapour undergoes combustion with carbon ... boise id flowers