Removal of Trace Water from Organic Mixtures by Pervaporation Separation During Butyl Acetate Production via Esterification
Why this work is in the frame
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Bibliographic record
Abstract
Abstract This paper reports on the removal of trace water from mixtures of n‐butyl acetate, n‐butanol, and acetic acid by pervaporation using a polyvinyl alcohol (PVA) membrane. The separations of binary (i.e., n‐butyl acetate and water) and quaternary (n‐butyl acetate, n‐butanol, acetic acid, and water) mixtures were investigated. The quaternary mixtures are relevant to n‐butyl acetate production by esterification via reactive distillation. A series of pervaporation experiments were performed, including a simulated production process in which the relationship between pervaporation time and water content in the feed was studied. The results show that the PVA membrane has very high permselectivity for water and maintains significant selectivity for a considerable period of time even when the water concentration is present at relatively high concentrations of water in organic mixtures.
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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 | 0.001 |
| 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) | 0.000 | 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 it