Influence of TiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, and Basicity on Viscosity and Structure of High Titanium-Bearing Blast Furnace Slag

The viscosity of high-titanium blast furnace slag with different TiO<sub>2</sub> content, Al<sub>2</sub>O<sub>3</sub> content, and basicity was measured at 1653–1773 K using the rotational cylinder method. The phase composition of the slag is measured by XRD. Phas...

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Main Authors: Wenbo Zhou, Tingle Li, Dong Lan, Changyu Sun, Songtao Yang
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/16/7/2575
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author Wenbo Zhou
Tingle Li
Dong Lan
Changyu Sun
Songtao Yang
author_facet Wenbo Zhou
Tingle Li
Dong Lan
Changyu Sun
Songtao Yang
author_sort Wenbo Zhou
collection DOAJ
description The viscosity of high-titanium blast furnace slag with different TiO<sub>2</sub> content, Al<sub>2</sub>O<sub>3</sub> content, and basicity was measured at 1653–1773 K using the rotational cylinder method. The phase composition of the slag is measured by XRD. Phase diagram of the slags is calculated by FactSage software. Ionic network structure of the slags is analyzed by FT–IR. Results show that TiO<sub>2</sub> depolymerizes the silicate network structure, reducing viscosity at high temperature, while increasing Al<sub>2</sub>O<sub>3</sub> content generates a more complicated silicate, increasing viscosity. Basicity affects viscosity, with higher basicity resulting in lower viscosity above 1733 K. Perovskite significantly affects the viscosity of slag. This study provides an in-depth understanding of the relationship between the composition and viscosity of high-titanium blast furnace slag, which is very important for improving production efficiency.
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spelling doaj.art-721d57351ebb411a846bcf5c6fbcd9f62023-11-17T17:02:03ZengMDPI AGMaterials1996-19442023-03-01167257510.3390/ma16072575Influence of TiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, and Basicity on Viscosity and Structure of High Titanium-Bearing Blast Furnace SlagWenbo Zhou0Tingle Li1Dong Lan2Changyu Sun3Songtao Yang4School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, ChinaSchool of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, ChinaSchool of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, ChinaSchool of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, ChinaSchool of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, ChinaThe viscosity of high-titanium blast furnace slag with different TiO<sub>2</sub> content, Al<sub>2</sub>O<sub>3</sub> content, and basicity was measured at 1653–1773 K using the rotational cylinder method. The phase composition of the slag is measured by XRD. Phase diagram of the slags is calculated by FactSage software. Ionic network structure of the slags is analyzed by FT–IR. Results show that TiO<sub>2</sub> depolymerizes the silicate network structure, reducing viscosity at high temperature, while increasing Al<sub>2</sub>O<sub>3</sub> content generates a more complicated silicate, increasing viscosity. Basicity affects viscosity, with higher basicity resulting in lower viscosity above 1733 K. Perovskite significantly affects the viscosity of slag. This study provides an in-depth understanding of the relationship between the composition and viscosity of high-titanium blast furnace slag, which is very important for improving production efficiency.https://www.mdpi.com/1996-1944/16/7/2575blast furnace slagslag viscosityslag structureTiO<sub>2</sub>
spellingShingle Wenbo Zhou
Tingle Li
Dong Lan
Changyu Sun
Songtao Yang
Influence of TiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, and Basicity on Viscosity and Structure of High Titanium-Bearing Blast Furnace Slag
Materials
blast furnace slag
slag viscosity
slag structure
TiO<sub>2</sub>
title Influence of TiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, and Basicity on Viscosity and Structure of High Titanium-Bearing Blast Furnace Slag
title_full Influence of TiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, and Basicity on Viscosity and Structure of High Titanium-Bearing Blast Furnace Slag
title_fullStr Influence of TiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, and Basicity on Viscosity and Structure of High Titanium-Bearing Blast Furnace Slag
title_full_unstemmed Influence of TiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, and Basicity on Viscosity and Structure of High Titanium-Bearing Blast Furnace Slag
title_short Influence of TiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, and Basicity on Viscosity and Structure of High Titanium-Bearing Blast Furnace Slag
title_sort influence of tio sub 2 sub al sub 2 sub o sub 3 sub and basicity on viscosity and structure of high titanium bearing blast furnace slag
topic blast furnace slag
slag viscosity
slag structure
TiO<sub>2</sub>
url https://www.mdpi.com/1996-1944/16/7/2575
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