Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6180834 | Process for the extraction of the salts contained in the neutralized separated product obtained in the preparation of phenol by the oxidation of cumene | Vanni Alessi | 2001-01-30 |
| 5811598 | Process for the recovery of phenol from an aqueous stream containing NA.sub. SO.sub.4 | Vanni Alessi, Sabrina Astori, Francesco Celin, Cecilia GRADELLA | 1998-09-22 |
| 5658437 | Reduction of the COD of an aqueous stream containing hydroperoxides and other organic impurities | Vanni Alessi, Alessandro Franzoni, Vittorio Milanesi | 1997-08-19 |
| 4973766 | Process for recovering phenol from a rectification purge | Paolo Reggiani, Claudio Spaggiari | 1990-11-27 |