Establishing an optimized flotation scheme for a complex Base-Metal sulfide ore using a modified xanthate reagent scheme
Bibliographic record
Abstract
• Froth reagent scheme for complex base-metal sulphide ore. • Recoveries of 84.0% and 83.8% for chalcopyrite and sphalerite. • Optimum recovery at 3 min grinding and pH 6. • SEM images show co-occurring copper and zinc. Generating a flotation reagent scheme for a complex base-metal sulphide ore using reagents that are commonly found in mineral processing can be a challenging, complex process. Ensuring that optimum operating conditions including particle size, pH, types of reagents, and dosages of reagents are found is critical in establishing a foundation for future research. A modified xanthate reagent scheme was chosen using potassium amyl xanthate (PAX) as the collector, methyl isobutyl carbinol (MIBC) as the frother, copper sulphate as activator, carboxy methyl cellulose (CMC) and zinc sulphate as depressants. The operating conditions that generated the highest recoveries and grades for copper and zinc were found using a grinding time of 3 min and a slightly acidic medium of pH 6 achieving maximum recoveries of 84.0% and 83.8% for chalcopyrite and sphalerite, and grades of 3.9 and 21.0, respectively. These results allow for comparisons to industrial results with ore of a similar composition while simultaneously providing a baseline in which to evaluate the results of future, innovative research.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".