| CLASSIFICATION | CommPat |
| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 07.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Method for removing impurities associated with a SPLITTA BLE nonionic surfactant in aq stream - Deactivating the surfactant to release the impurities from association with the surfactant by adjusting the pH of aq stream to acidic pH to split the surfactant irreversibly into rel. water-insoluble fraction & rel. water-soluble fraction, the released impurities & water-insoluble fraction of surfactant forming a rel. water-insoluble phase & - Removing portion of water-insoluble phase from aq stream Wherein surfactant is represented by formula represented by condensation of - HOCH2-CHOH-CH2-O-(CH2CH2O)1-40-H - O=CH-(CH2)7-19-Me |
| PATENT PHOTOCOPY | Available on request |
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