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Record W2919723241 · doi:10.3103/s0967091218090103

Thermomagnetic Enrichment and Dephosphorization of Brown Iron Ore and Concentrates

2018· article· en· W2919723241 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueSteel in Translation · 2018
Typearticle
Languageen
FieldEngineering
TopicIron and Steelmaking Processes
Canadian institutionsArcelorMittal (Canada)
Fundersnot available
KeywordsIron oreRoastingLeaching (pedology)MetallurgyPig ironEconomic shortageMagnetic separationPhosphorusEnvironmental scienceWaste managementMaterials scienceEngineering

Abstract

fetched live from OpenAlex

Oolitic brown iron ores are of great economic importance because of the vast reserves that exist in the world. However, their high phosphorus content has limited their use in metallurgy. Exciting enrichment methods are essentially unable to decrease the phosphorus content in such ore, since the phosphorus is present in embedded form as emulsions, without forming independent mineral phases. Hence, there has been very little use of such ore. With the increase in global steel production today, demand for iron ore is rising. Accordingly, considerable efforts have been made to create new systems for phosphor removal from brown iron ores, so as to obtain conditioned concentrates. Kazkhstan’s shortage of iron ores that are already rich or readily enriched calls for the utilization of the enormous reserves of easily mined oolitic brown iron ores (in the Lisakovsk, Ayat, Priaral, and other fields), containing up to 35–40% Fe and 1% P. Thermomagnetic enrichment is the most promising means of removing phosphorus from brown iron ores. In this technology, the ore or concentrate is first treated with a liquid hydrocarbon reducing agent. The next steps are magnetizing roasting, magnetic enrichment of the cake produced, and subsequent dephosphorization of the magnetic concentrate by acidic leaching. In trials, the technology is tested on representative samples of Lisakovsk concentrate and Ayat and Kok-Bulak ore.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.695
Threshold uncertainty score0.230

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.010
GPT teacher head0.216
Teacher spread0.206 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it