A study of some elemental distributions between slag and hot metal during tapping of the blast furnace

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Fältnamn	Indikatorer	Metadata
000		03135naa a2200421 4500
001		oai:DiVA.org:kth-44921
003		SwePub
008		111026s2004 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-449212 URI
024	7	a https://doi.org/10.1002/srin.2004059582 DOI
040		a (SwePub)kth
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Andersson, Annikau KTH,Tillämpad processmetallurgi4 aut0 (Swepub:kth)-
245	1 0	a A study of some elemental distributions between slag and hot metal during tapping of the blast furnace
264		c 2016-12-13
264	1	b Wiley,c 2004
338		a print2 rdacarrier
500		a QC 20111108
520		a This paper investigates the distribution of elements between slag and hot metal from a blast furnace through calculation of distribution coefficients from actual production data. First, samples of slag and hot metal tapped from a commercial blast furnace were taken continually at 10-minute intervals for a production period of 68 hours. Distribution coefficients of manganese, silicon, sulphur and vanadium were then calculated from the results of the sample analyses. A major conclusion drawn from examination of the results was that the behaviour of the studied elements was as could be expected when approaching the equilibrium reactions from thermodynamic theory. The distributions of the elements in the slag-metal system showed clear tendencies which did not appear to be influenced by the operational conditions of the furnace. For example, for manganese, vanadium and sulphur, it was found that a higher basicity led to a decreased distribution coefficient L-Mn and L-V, but an increased L-S, which is according to theory. Another observed relationship was that slag basicity increased with an increased carbon content in the hot metal, which indicated that SiO2 was reduced to [Si] when the oxygen potential decreased. Furthermore, it was found that sulphur and silica behaviour likened that of acidic slag components, while the manganese oxide and vanadium oxide behaviour was similar to that of basic slag components.
650	7	a TEKNIK OCH TEKNOLOGIERx Materialteknikx Metallurgi och metalliska material0 (SwePub)205062 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Metallurgy and Metallic Materials0 (SwePub)205062 hsv//eng
653		a blast furnace
653		a distribution coefficients
653		a hot metal
653		a slag
653		a silicon
653		a sulphur
653		a manganese
653		a vanadium
700	1	a Andersson, Margareta A.T.u KTH,Tillämpad processmetallurgi4 aut0 (Swepub:kth)u12qjemn
700	1	a Jönsson, Pär Gu KTH,Tillämpad processmetallurgi4 aut0 (Swepub:kth)u118w09b
710	2	a KTHb Tillämpad processmetallurgi4 org
773	0	t Steel researchd : Wileyg 75:5, s. 294-301q 75:5<294-301x 0177-4832x 1611-3683
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-44921
856	4 8	u https://doi.org/10.1002/srin.200405958

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Av författaren/redakt...: Andersson, Annik ...; Andersson, Marga ...; Jönsson, Pär G

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TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Materialteknik; och Metallurgi och m ...

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