Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9635789 | The Journal of Supercritical Fluids | 2005 | 9 Pages |
Abstract
Supercritical fluid extraction was evaluated for removing surfactants from freshly synthesized molecular sieve powders possessing different pore sizes. In our study, methanol- or water-enhanced supercritical CO2 extraction was carried out on as-synthesized microporous and mesoporous material powders. The results showed that very high surfactant recovery (over 80%) could be achieved from large pore-sized mesoporous materials by using the SFE method, while the surfactant recovery is rather low from small pore-sized microporous zeolite materials. Supercritical fluid extraction technology may provide a potential method for large-scale production of mesoporous materials with effective surfactant recovery that is extremely efficient.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Z. Huang, D.-Y. Luan, S.-C. Shen, K. Hidajat, S. Kawi,