Effect of ultrafine powder of hematite and magnetite on granulation characteristics of iron oxide

Research output: Contribution to journalArticle

Abstract

Effect of ultrafine powder of Hematite and Magnetite on granulation characteristics of iron oxide was investigated by mixing and exterior coating granulation. The results obtained are follows: (1) In the case of Hematite Ore H, particle diameter of granule is increase with increasing the amount of fine powder in both mixing granulation and exterior coating granulation. On the other hand, in the case of Magnetite Ore M, particle diameter of granule is increase with increasing the amount of fine powder in mixing granulation. In the case of exterior coating granulation using Magnetite Ore M, particle diameter of granule is increase with increasing until 20 mass% of added fine powder but particle diameter of granule is decrease when the amount of fine powder added 30 mass%. (2) The particle diameter dependence of wet strength is relatively small in both mixing and exterior coating granulation. Except for 30 mass% of added fine Magnetite ore M in exterior coating granulation, wet strength of granule is not increase even if the amount of added fine Hematite Ore H and Magnetite ore M is increase. Therefore, it is considered that wet strength of granule is determined by adhesion force of liquid bridge. (3) In mixing granulation, the particle diameter dependence of dry strength is relatively small. In the case of exterior coating granulation, dry strength of granule is decrease with increasing the particle diameter of granule. The dry strength of granule made from mixing granulation is larger than that of exterior coating granulation.

Original languageEnglish
Pages (from-to)246-253
Number of pages8
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume103
Issue number6
DOIs
Publication statusPublished - Jan 1 2017

Fingerprint

Ferrosoferric Oxide
Granulation
Hematite
Magnetite
hematite
Iron oxides
iron oxides
magnetite
Powders
coatings
minerals
Ores
Coatings
liquid bridges
ferric oxide
Ultrafine
adhesion

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

Cite this

@article{ec990713792049ac8db4e3092ad32f17,
title = "Effect of ultrafine powder of hematite and magnetite on granulation characteristics of iron oxide",
abstract = "Effect of ultrafine powder of Hematite and Magnetite on granulation characteristics of iron oxide was investigated by mixing and exterior coating granulation. The results obtained are follows: (1) In the case of Hematite Ore H, particle diameter of granule is increase with increasing the amount of fine powder in both mixing granulation and exterior coating granulation. On the other hand, in the case of Magnetite Ore M, particle diameter of granule is increase with increasing the amount of fine powder in mixing granulation. In the case of exterior coating granulation using Magnetite Ore M, particle diameter of granule is increase with increasing until 20 mass{\%} of added fine powder but particle diameter of granule is decrease when the amount of fine powder added 30 mass{\%}. (2) The particle diameter dependence of wet strength is relatively small in both mixing and exterior coating granulation. Except for 30 mass{\%} of added fine Magnetite ore M in exterior coating granulation, wet strength of granule is not increase even if the amount of added fine Hematite Ore H and Magnetite ore M is increase. Therefore, it is considered that wet strength of granule is determined by adhesion force of liquid bridge. (3) In mixing granulation, the particle diameter dependence of dry strength is relatively small. In the case of exterior coating granulation, dry strength of granule is decrease with increasing the particle diameter of granule. The dry strength of granule made from mixing granulation is larger than that of exterior coating granulation.",
author = "Takayuki Maeda and Yuhei Hayashi and Ko-Ichiro Ohno and Kazuya Kunitomo",
year = "2017",
month = "1",
day = "1",
doi = "10.2355/tetsutohagane.TETSU-2016-074",
language = "English",
volume = "103",
pages = "246--253",
journal = "Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan",
issn = "0021-1575",
publisher = "一般社団法人 日本鉄鋼協会",
number = "6",

}

TY - JOUR

T1 - Effect of ultrafine powder of hematite and magnetite on granulation characteristics of iron oxide

AU - Maeda, Takayuki

AU - Hayashi, Yuhei

AU - Ohno, Ko-Ichiro

AU - Kunitomo, Kazuya

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Effect of ultrafine powder of Hematite and Magnetite on granulation characteristics of iron oxide was investigated by mixing and exterior coating granulation. The results obtained are follows: (1) In the case of Hematite Ore H, particle diameter of granule is increase with increasing the amount of fine powder in both mixing granulation and exterior coating granulation. On the other hand, in the case of Magnetite Ore M, particle diameter of granule is increase with increasing the amount of fine powder in mixing granulation. In the case of exterior coating granulation using Magnetite Ore M, particle diameter of granule is increase with increasing until 20 mass% of added fine powder but particle diameter of granule is decrease when the amount of fine powder added 30 mass%. (2) The particle diameter dependence of wet strength is relatively small in both mixing and exterior coating granulation. Except for 30 mass% of added fine Magnetite ore M in exterior coating granulation, wet strength of granule is not increase even if the amount of added fine Hematite Ore H and Magnetite ore M is increase. Therefore, it is considered that wet strength of granule is determined by adhesion force of liquid bridge. (3) In mixing granulation, the particle diameter dependence of dry strength is relatively small. In the case of exterior coating granulation, dry strength of granule is decrease with increasing the particle diameter of granule. The dry strength of granule made from mixing granulation is larger than that of exterior coating granulation.

AB - Effect of ultrafine powder of Hematite and Magnetite on granulation characteristics of iron oxide was investigated by mixing and exterior coating granulation. The results obtained are follows: (1) In the case of Hematite Ore H, particle diameter of granule is increase with increasing the amount of fine powder in both mixing granulation and exterior coating granulation. On the other hand, in the case of Magnetite Ore M, particle diameter of granule is increase with increasing the amount of fine powder in mixing granulation. In the case of exterior coating granulation using Magnetite Ore M, particle diameter of granule is increase with increasing until 20 mass% of added fine powder but particle diameter of granule is decrease when the amount of fine powder added 30 mass%. (2) The particle diameter dependence of wet strength is relatively small in both mixing and exterior coating granulation. Except for 30 mass% of added fine Magnetite ore M in exterior coating granulation, wet strength of granule is not increase even if the amount of added fine Hematite Ore H and Magnetite ore M is increase. Therefore, it is considered that wet strength of granule is determined by adhesion force of liquid bridge. (3) In mixing granulation, the particle diameter dependence of dry strength is relatively small. In the case of exterior coating granulation, dry strength of granule is decrease with increasing the particle diameter of granule. The dry strength of granule made from mixing granulation is larger than that of exterior coating granulation.

UR - http://www.scopus.com/inward/record.url?scp=85020481920&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85020481920&partnerID=8YFLogxK

U2 - 10.2355/tetsutohagane.TETSU-2016-074

DO - 10.2355/tetsutohagane.TETSU-2016-074

M3 - Article

VL - 103

SP - 246

EP - 253

JO - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan

JF - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan

SN - 0021-1575

IS - 6

ER -