Issued Patents 1982
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338464 | Removal of bromobutanone from acetic acid | Martin A. Zeitlin | 1982-07-06 |
| 4312714 | Decreasing 3-bromo-2-butanone content of acetic acid | — | 1982-01-26 |
| 4312778 | Membrane separation of catalyst metals from aromatic acid production | — | 1982-01-26 |
| 4311521 | Membrane separation of catalyst metals from trimellitic acid production and separation of cobalt from manganese | Stephen J. Pietsch | 1982-01-19 |
| 4309390 | Separation of cobalt and manganese from trimellitic acid process residue by extraction, pH adjustment, and magnet | Stephen J. Pietsch | 1982-01-05 |