Data · dataset · 2026
The Effect of Coke Powder on the Iron Ore Fines Reduction by Carbon Monoxide
Listed in ZivaHub and Deakin Research Online and DMU Figshare — shown once because both records carry DOI 10.1021/acsomega.6c05900.s001
Iron ore fines and coke powder are synergistically reduced in a drop-tube reactor.
Description
The effects of temperature, CO concentration, and the blending ratio (BR) of coke powder are investigated. The results show that increasing temperature promotes reduction within the range of 800–1200 °C, while CO concentration has a lesser effect.
The kinetic mechanism can be explained by a nucleation-and-growth model, and the activation energies for iron ore fines, the mixture with fine coke powder at BR = 0.4, and the mixture with the same particle size coke powder at BR = 0.4 are 19.09 kJ/mol, 50.61 kJ/mol, and 47.80 kJ/mol, respectively. Coke powder causes the outlet CO concentration to be equal to or greater than the inlet CO concentration and the outlet CO<sub>2</sub> concentration decreases.
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Increasing BR from 0.4 to 0.8 and 0.8 to 1.2 mainly promoted the conversion of Fe<sub>3</sub>O<sub>4</sub>→FeO and FeO→Fe, respectively. The sticking index reached a minimum of 0.86% when BR = 0.4. However, overall sticking inhibition was more effective when BR = 1.2.
The mechanism of sticking inhibition is that the coke powder acts as a physical barrier, reducing the collision and contact probability between the iron ore fines, thereby preventing iron whiskers from entangling or bridging.
Links
Where it is published
- DOI doi.org/10.1021/acsomega.6c05900.s001 ↗
DOI / persistent id · from zivahub uct ac za
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from zivahub uct ac za
Topics
- From keywords
- Chemistry · Chemistry · Chemistry · Earth & Environmental Science · Earth & Environmental Science · Earth & Environmental Science · Ecology · Ecology · Ecology · Life Sciences · Life Sciences · Life Sciences · Research, science and technology policy · Research, science and technology policy · Research, science and technology policy
Provenance · 3 source records, 20 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ZivaHub | oai:figshare.com:article/34040616 | 13 d ago | JSON v1 |
| Deakin Research Online | oai:figshare.com:article/34040616 | 13 d ago | JSON v1 |
| DMU Figshare | oai:figshare.com:article/34040616 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].anzsrc:field:440710 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Science Policy'] |
| concepts[field].anzsrc:field:440710 | mapping · figshare dmu ac uk | vocabulary-mapper@1.0.0 | keywords['Science Policy'] |
| concepts[field].anzsrc:field:440710 | mapping · dro deakin edu au | vocabulary-mapper@1.0.0 | keywords['Science Policy'] |
| concepts[field].anzsrc:group:3103 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].anzsrc:group:3103 | mapping · dro deakin edu au | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].anzsrc:group:3103 | mapping · figshare dmu ac uk | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].local:field:chemistry | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| description | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/description |
| license | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/rights |
| publication_date | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| title | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/title |