| Titre : | Production of tetramethyl ammonium hydroxide using bipolar membrane electrodialysis (2008) |
| Auteurs : | Haozhe Feng, Éditeur scientifique ; Chuanhui Huang, Éditeur scientifique ; Tongwen Xu, Éditeur scientifique |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 47 N°20, Octobre 2008) |
| Article en page(s) : | P. 7552-7557 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Tetramethyl ammonium hydroxide (TMAH) Bipolar membrane electrodialysis (BMED) |
| Résumé : | To produce tetramethyl ammonium hydroxide (TMAH) at lower energy consumption and with less environmental pollution, a bipolar membrane electrodialysis (BMED) of A-BP configuration (A, anion exchange membrane; BP, bipolar membrane) was adopted to electro-alkalize tetramethyl ammonium chloride. The results for one-unit BMED stack indicate that current efficiency increases and energy consumption decreases as feed concentration increases or current density decreases. The highest current efficiency can reach 99.9%, and the lowest energy consumption is 1.43 kWh kg−1. On the basis of a 3-unit BMED, the process cost is estimated to be 0.33 $ kg−1 of TMAH. This method is not only environmentally friendly but also cost-effective. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie800558m |
