Thioether‐bridged surfactants for interfacial hydrophobic regulation and enhanced mineral flotation recovery
Bibliographic record
Abstract
Abstract Surfactant modification to improve interfacial hydrophobicity is widely employed in separation applications such as mineral recovery. However, few modifications effectively enhance both the inherent hydrophobicity of the surfactant and its surface‐anchoring capacity. In this study, we propose a strategy to incorporate a thioether group into a hydroxamate surfactant, resulting in the synthesis of N‐hydroxy‐2‐(octylthio)acetamide (OTHA). Compared to the thioether‐free surfactant (OHA), the thioether group significantly improves the metal‐anchoring capability of the surfactant, demonstrating a twofold increase in adsorption on hydrophilic cassiterite surfaces. Meanwhile, the inherent hydrophobicity of the thioether group enhances the hydrophobization of the target mineral surface and improves bubble‐surface interactions. The robust hydrophobicity‐inducing ability of OTHA successfully increases the flotation recovery of hydrophilic cassiterite particles, with a marked improvement from 72.5% to 95.0%. This work presents a paradigm for surfactant modification, enabling tailored hydrophobic interfaces for practical applications such as mineral separation, oil‐gas extraction, waterproof materials, and functional coatings.
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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 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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".