Antifoam/defoamer compositions for Bayer process
US5346511A · kind A · utility
5Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1993 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Mar 12, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for defoaming a Bayer process liquor, the method comprising the steps of adding to the Bayer process liquor an effective amount of an antifoam/defoamer composition comprising a polyether surfactant and a polyhydric alcohol fatty acid ester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.