Assessment of the BOF-Slag separability

Publikationen: KonferenzbeitragPaper

Standard

Assessment of the BOF-Slag separability. / Kamali Moaveni, Ali; Böhm, Andreas.
2016. 174-183 Beitrag in 5th ESEE Dialogue Confrence – OPMR 2016 – Oppurtunities in Processing of Metal Resources in the East- and South East Europe, Budapest, Ungarn.

Publikationen: KonferenzbeitragPaper

Harvard

Kamali Moaveni, A & Böhm, A 2016, 'Assessment of the BOF-Slag separability', Beitrag in 5th ESEE Dialogue Confrence – OPMR 2016 – Oppurtunities in Processing of Metal Resources in the East- and South East Europe, Budapest, Ungarn, 28/11/16 - 30/11/16 S. 174-183.

APA

Kamali Moaveni, A., & Böhm, A. (2016). Assessment of the BOF-Slag separability. 174-183. Beitrag in 5th ESEE Dialogue Confrence – OPMR 2016 – Oppurtunities in Processing of Metal Resources in the East- and South East Europe, Budapest, Ungarn.

Vancouver

Kamali Moaveni A, Böhm A. Assessment of the BOF-Slag separability. 2016. Beitrag in 5th ESEE Dialogue Confrence – OPMR 2016 – Oppurtunities in Processing of Metal Resources in the East- and South East Europe, Budapest, Ungarn.

Author

Kamali Moaveni, Ali ; Böhm, Andreas. / Assessment of the BOF-Slag separability. Beitrag in 5th ESEE Dialogue Confrence – OPMR 2016 – Oppurtunities in Processing of Metal Resources in the East- and South East Europe, Budapest, Ungarn.10 S.

Bibtex - Download

@conference{c056955fb95f4b10a3f16706cb1d7199,
title = "Assessment of the BOF-Slag separability",
abstract = "LD-Slag is an inevitable by-product of Linz-Donawitz (LD) process using the basic oxygen furnace for steelmaking. For successful recycling of the residual iron and iron oxides into the steel making process the amount of phosphorous in the slag has to be reduced. The present study investigates the separability of the phosphorous carrying phase by physico- chemical methods including the alteration of the liberation state by preconditioning of the slag.The initial raw material´s analysis including microscopic and SEM investigations in property classes showed that the slag is constituted dominantly of dicalcium silicate (C2S) as well as calcium- and magnesium- ferrites in a wide range of elemental composition, iron and free lime. The phosphorous is mainly situated in the C2S phase, thus the limits of flotation and wet magnetic separation are examined in order to separate the diamagnetic silicates from the iron containing oxides. The liberation state is described combining automated mineralogy and conventional particle categorization by physical methods.Pure CO2 gas was percolated through the pulp for C2S deconstruct and also pH conditioning for flotation in a controlled way.The low phosphorous concentration in the filtrate of the carbonation process, which was detected by chemical assays, is an evidence for partly deconstruction of the C2S phase, while no phosphorous was detected in the filtrate of long term hydration process (162 hours) at the absence of CO2.The effects on separability of partial leaching of C2S and precipitation of CaCO3 are discussed on the base of SEM investigations and lab scale separation tests.",
author = "{Kamali Moaveni}, Ali and Andreas B{\"o}hm",
year = "2016",
month = nov,
day = "30",
language = "English",
pages = "174--183",
note = "5th ESEE Dialogue Confrence – OPMR 2016 – Oppurtunities in Processing of Metal Resources in the East- and South East Europe ; Conference date: 28-11-2016 Through 30-11-2016",

}

RIS (suitable for import to EndNote) - Download

TY - CONF

T1 - Assessment of the BOF-Slag separability

AU - Kamali Moaveni, Ali

AU - Böhm, Andreas

PY - 2016/11/30

Y1 - 2016/11/30

N2 - LD-Slag is an inevitable by-product of Linz-Donawitz (LD) process using the basic oxygen furnace for steelmaking. For successful recycling of the residual iron and iron oxides into the steel making process the amount of phosphorous in the slag has to be reduced. The present study investigates the separability of the phosphorous carrying phase by physico- chemical methods including the alteration of the liberation state by preconditioning of the slag.The initial raw material´s analysis including microscopic and SEM investigations in property classes showed that the slag is constituted dominantly of dicalcium silicate (C2S) as well as calcium- and magnesium- ferrites in a wide range of elemental composition, iron and free lime. The phosphorous is mainly situated in the C2S phase, thus the limits of flotation and wet magnetic separation are examined in order to separate the diamagnetic silicates from the iron containing oxides. The liberation state is described combining automated mineralogy and conventional particle categorization by physical methods.Pure CO2 gas was percolated through the pulp for C2S deconstruct and also pH conditioning for flotation in a controlled way.The low phosphorous concentration in the filtrate of the carbonation process, which was detected by chemical assays, is an evidence for partly deconstruction of the C2S phase, while no phosphorous was detected in the filtrate of long term hydration process (162 hours) at the absence of CO2.The effects on separability of partial leaching of C2S and precipitation of CaCO3 are discussed on the base of SEM investigations and lab scale separation tests.

AB - LD-Slag is an inevitable by-product of Linz-Donawitz (LD) process using the basic oxygen furnace for steelmaking. For successful recycling of the residual iron and iron oxides into the steel making process the amount of phosphorous in the slag has to be reduced. The present study investigates the separability of the phosphorous carrying phase by physico- chemical methods including the alteration of the liberation state by preconditioning of the slag.The initial raw material´s analysis including microscopic and SEM investigations in property classes showed that the slag is constituted dominantly of dicalcium silicate (C2S) as well as calcium- and magnesium- ferrites in a wide range of elemental composition, iron and free lime. The phosphorous is mainly situated in the C2S phase, thus the limits of flotation and wet magnetic separation are examined in order to separate the diamagnetic silicates from the iron containing oxides. The liberation state is described combining automated mineralogy and conventional particle categorization by physical methods.Pure CO2 gas was percolated through the pulp for C2S deconstruct and also pH conditioning for flotation in a controlled way.The low phosphorous concentration in the filtrate of the carbonation process, which was detected by chemical assays, is an evidence for partly deconstruction of the C2S phase, while no phosphorous was detected in the filtrate of long term hydration process (162 hours) at the absence of CO2.The effects on separability of partial leaching of C2S and precipitation of CaCO3 are discussed on the base of SEM investigations and lab scale separation tests.

M3 - Paper

SP - 174

EP - 183

T2 - 5th ESEE Dialogue Confrence – OPMR 2016 – Oppurtunities in Processing of Metal Resources in the East- and South East Europe

Y2 - 28 November 2016 through 30 November 2016

ER -