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Record W4382940498 · doi:10.1002/cjce.25038

A beneficiation study to recover xenotime minerals from rich‐iron‐silicate ores

2023· article· en· W4382940498 on OpenAlex
Kien Trung Nguyen, Quang Bac Nguyen, Chi Thi Ha Nguyen, Chuc Ngoc Pham, Lim Thi Duong, Mai Vu Ngoc Nguyen, Ha Thi Viet Luu, Đào Ngọc Nhiệm

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.

venuePublished in a venue whose home country is Canada.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueThe Canadian Journal of Chemical Engineering · 2023
Typearticle
Languageen
FieldEngineering
TopicExtraction and Separation Processes
Canadian institutionsnot available
FundersVietnam Academy of Science and Technology
KeywordsBeneficiationSilicateRare earthIron oreMetallurgyEnvironmental scienceSilicate mineralsMineralogyGeochemistryChemistryGeologyMaterials science

Abstract

fetched live from OpenAlex

Abstract The Yen Phu (YP) rare‐earth mine, located in Yen Bai, Vietnam, currently reserves 28,000 tons of total rare earth oxides (TREO) with a TREO grade of about 1.16%. A mineralogy study shows the dominance of iron‐oxide‐ and silicate‐bearing minerals in YP ore, whereas xenotime presents as the major rare‐earth metal (REM) bearing mineral. Chemical analyses also exhibit a relatively high proportion of heavy rare earth metals (HREMs) at 41.2%, which suggests the high economic value of YP ores. The factors influencing the flotation involving the pH, the depressant, and the collector dosage were first assessed. Then, a beneficiation flowsheet including grinding, wet magnetic separation, and flotation was recommended and practically conducted to enrich the TREO. The proposed process successfully promoted the TREO grade from 1.16% to 29.70% with a high recovery of 80.31% in the REM concentrates, while a tiny loss of TREO was exhibited in the tailing. The chemical analysis of REM concentrates also demonstrated the conservation of REM composition throughout the beneficiation.

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: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.357
Threshold uncertainty score0.368

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 head0.014
GPT teacher head0.221
Teacher spread0.207 · 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