Products

aod slag treatments to

(PDF) AOD slag treatments to recover metal and to prevent

Laboratory treatment tests of AOD slag from stainless steelmaking have been carried out by MiMeR, Minerals and Metals Recycling Research Centre, at Luleå University of Technology.

More

Treatments of AOD Slag to Produce Aggregates for Road

Qixing Yang et al carried out laboratory tests to treat the AOD slag by water granulation 4, 5. X-ray X-ray diffraction analyses of the slag granules obtained from the tests indicated that the

More

Treatments of AOD slag to produce aggregates for road

Treatments of AOD slag to produce aggregates for road construction. Yang, Qixing . Nedar, Lotta . Outokumpu, Avesta. Engström, Fredrik . Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.

More

Treatments of AOD Slag to enhance recycling and CORE

Laboratory treatment tests of AOD slag from stainless steelmaking have been performed by MiMeR. An induction furnace was used for slag reduction tests. The reduced slag was either water granulated or cooled in an Al2O3 crucible. Metal droplets, suitable for recycling as metallic materials in the steelmaking, were recovered after the slag

More

Argon Oxygen Decarburization Treatment AOD Whiting

Argon Oxygen Decarburization (AOD) Treatment is the recognized standard for stainless steel refining worldwide. Whether you are producing castings, wrought stainless, low alloy, or speciality steels, AOD provides numerous advantages: High Metallic yields; Slag pot car 50 tons, 5

More

Argon oxygen decarburization Wikipedia

Argon oxygen decarburization (AOD) is a process primarily used in stainless steel making and other high grade alloys with oxidizable elements such as chromium and aluminum.After initial melting the metal is then transferred to an AOD vessel where it will be subjected to three steps of refining; decarburization, reduction, and desulfurization.AOD was invented in 1954 by the Lindé Division of

More

Dissolution Behavior of Fluorine from AOD Slag after

AOD slag samples from steel works of Outokumpu Stainless Company were used to study F-dissolution relating to treatments for volume stabilization. Results from the slag tests and sample characterizations indicate that the slag re-melting with or without reduction and granulation with either water or gas have rather small effects on F leaching, as well as formation of different C2S polymorphs.

More

Carbonation of argon oxygen decarburization stainless

May 20, 2020· AOD slag in the present work was directly collected from the slag tank under the AOD furnace after stainless-steel refining. The AOD slag was disintegrated after natural cooling, which is the result of the crystal phase transition of dicalcium silicate (C 2 S) from β-C 2 S to γ-C 2 S at approximately 490 °C ( Kriskova et al., 2012 ).

More

Mechanism and Prevention of Disintegration of AOD

Apr 01, 2013· Yang Q X, Engström F, Tossavainen M, et al. AOD Slag Treatments to Recover Metal and to Prevent Slag Dusting [C] // Proceedings of the 7th Nordic-Japan Symposium on Science and Technology of Process Metallurgy. Stockholm: [s. n.], 2005: 117.

More

RECENT DEVELOPMENTS IN DRY SLAG GRANULATION: A

which is a challenge for LMF and AOD slags. 2.2 Wet Slag Granulation Wet granulation is used in a number of smelters to handle BF slag. Wet granulation Baosteel Short Slag Treatment Facility (BSSF) Baosteel started to develop the BSSF process for steelmaking slag in the mid 1990s.

More

Argon Oxygen Decarburization Treatment AOD Whiting

Argon Oxygen Decarburization (AOD) Treatment is the recognized standard for stainless steel refining worldwide. Whether you are producing castings, wrought stainless, low alloy, or speciality steels, AOD provides numerous advantages: High Metallic yields; Slag pot car 50 tons, 5

More

Treatments of AOD slag to produce aggregates for road

Treatments of AOD slag to produce aggregates for road construction. Yang, Qixing . Nedar, Lotta . Outokumpu, Avesta. Engström, Fredrik . Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.

More

Treatments of AOD Slag to enhance recycling and CORE

Laboratory treatment tests of AOD slag from stainless steelmaking have been performed by MiMeR. An induction furnace was used for slag reduction tests. The reduced slag was either water granulated or cooled in an Al2O3 crucible. Metal droplets, suitable for recycling as metallic materials in the steelmaking, were recovered after the slag

More

Mechanism and Prevention of Disintegration of AOD

Apr 01, 2013· Yang Q X, Engström F, Tossavainen M, et al. AOD Slag Treatments to Recover Metal and to Prevent Slag Dusting [C] // Proceedings of the 7th Nordic-Japan Symposium on Science and Technology of Process Metallurgy. Stockholm: [s. n.], 2005: 117.

More

Dissolution Behavior of Fluorine from AOD Slag after

AOD slag samples from steel works of Outokumpu Stainless Company were used to study F-dissolution relating to treatments for volume stabilization. Results from the slag tests and sample characterizations indicate that the slag re-melting with or without reduction and granulation with either water or gas have rather small effects on F leaching, as well as formation of different C2S polymorphs.

More

Argon Oxygen Decarburization (AOD) Process

Argon oxygen decarburization (AOD) is a process primarily used in production of stainless steel and other high grade alloys such as silicon steels, tool steels, nickel-base alloys and cobalt-base alloys with oxidizable elements such as chromium and aluminum. AOD was invented in 1954 by the Lindé division of The Union Carbide Corporation, which became Praxair in 1992.

More

FAYALITE SLAG MODIFIED STAINLESS STEEL AOD SLAG

input, the AOD slag still had r-C 2 S matrix. Free CaF 2 and some cupsidine phase were found in the AOD slag. 10 wt% fayalite addition is not able to stable the AOD slag, with nearly 60 wt% r-C2S remained in the slag. With 25 wt% fayalite addition, the slag turned into an intact slag, with the major

More

AOD Scientific.Net

Abstract: AOD slag samples from steel works of Outokumpu Stainless Company were used to study F-dissolution relating to treatments for volume stabilization. Results from the slag tests and sample characterizations indicate that the slag re-melting with or without reduction and granulation with either water or gas have rather small effects on F

More

Dissolution behavior of fluorine in AOD slag from the

Slag fines from the disintegration are difficult to handle and to use as materials for construction purposes. In our early research work, AOD slag samples were modified by agents containing B or P elements. Different slag cooling procedures were also used, including cooling inside crucibles after re-melting and granulation by water and gas.

More

RECENT DEVELOPMENTS IN DRY SLAG GRANULATION: A

which is a challenge for LMF and AOD slags. 2.2 Wet Slag Granulation Wet granulation is used in a number of smelters to handle BF slag. Wet granulation Baosteel Short Slag Treatment Facility (BSSF) Baosteel started to develop the BSSF process for steelmaking slag in the mid 1990s.

More

ETP sludge as filler and the role of AOD slag & GBFS in

ETP sludge as filler and the role of AOD slag & GBFS in fly ash–slag–sludge blended geopolymer 380 Copright 2018 ingh et Citation: Singh JP, Sinha DK, Kumar S, et al. ETP sludge as filler and the role of AOD slag & GBFS in fly ash–slag–sludge blended geopolymer.MOJ Civil Eng.

More

Mechanism and Prevention of Disintegration of AOD

Apr 01, 2013· During the cooling process of AOD (argon-oxygen decarburization) stainless steel slag, the serious disintegrating problem happened, which will cause serious environmental pollution. The disintegrating mechanism of the AOD slag was analyzed in detail, and experimental research on prevention of disintegrating of AOD stainless steel slag was developed by adjusting the basicity of the slag

More

Optimised phosphorus removal technology for small-scale

performance varies from one type of slag to another. Research has shown that electric arc furnace slag (EAF) and argon oxygen decarburisation slag (AOD) can achieve better P removal than blast furnace slag (BFS), owing to the resulting higher pH of the wastewater solution (Gustafsson et al., 2008; Claveau-Mallet et al., 2012; Zuo et al., 2015).

More

Treatment of LF slag to prevent powdering during cooling

TREATMENT OF LF SLAG TO PREVENT POWDERING DURING COOLING S. Ghorai a,*, G.K. Mandal a, S. Roy b, R.K. Minj a, A. Agrawal a, D.P. Singh a, A. Kumar c R.B.V. Ramna c a CSIR-National Metallurgical Laboratory, Jamshedpur, India bFormerly with CSIR-National Metallurgical Laboratory, Jamshedpur as Summer Research Fellow, Indian Academy of Sciences, India c Tata Iron

More