| Titre : |
Technology for the production of high-performance textile-grade PA 6 |
| Type de document : |
texte imprimé |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 30-32 |
| Langues : |
Anglais (eng) |
| Catégories : |
Dimères
Extraction (chimie)
Fibres textiles synthétiques
Oligomères
Polyamide 6
Polymères -- Détérioration
Polymères -- Recyclage
|
| Index. décimale : |
677.4 Textiles artificiels |
| Résumé : |
According to current forecasts, the expected worldwide consumption of polyamide 6 (PA 6) in 2020 will be 5.5 million metric tons with a stable annual growth of 2.5-3.0%. More than 65 % of it will be fiber-grade polymers. The over-proportionally strong growth of production capacity (expected annual growth of 4.0%) exceeds the expected growth of consumption and causes pressure on the polyamide producers. The endeavors to optimize production efficiency and to reduce production costs are rising. The biggest cost factor in the production of PA 6 is raw material cost (ε-caprolactam). Thus, beside top product quality, minimum raw material consumption is most important for producers. This directs the focus on handling the internal recirculation stream containing caprolactam-monomer and oligomers. The effective and professional handling of this stream influences both product quality and profitability of the plant. |
| Note de contenu : |
- Extraction as core process step
- Chemistry of the PA 6 equilibrium-reaction
- Extract treatment and recycling
- OMDP technology
- Fig. 1 : PA 6 textile-grade production - main process steps
- Fig. 2 : Cyclic dimer build-up in polymerization reactor dependent on residence time and temperature
- Fig. 3 : OMDP technology for production of PA 6 textile-grade chips
- Fig. 4 : Total cost of OMDP technology compared to de-polymerization technology. Calculated cost-/ton of PA 6 production for 600 tons/day plant |
| En ligne : |
https://drive.google.com/file/d/1xXdQf99ohHl2DrmwxeCRpedP_AKip3Dt/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31243 |
in CHEMICAL FIBERS INTERNATIONAL > (10/2018) . - p. 30-32
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Technology for the production of high-performance textile-grade PA 6 in CHEMICAL FIBERS INTERNATIONAL, (10/2018)
