Method of recovering amine in a process for breaking emulsions and sludges
US4830754A · kind A · utility
5Cited by
4References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1987 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Aug 3, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D17/047
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for using alkali for recovering amine used in a process for breaking emulsions and sludges. The amine has an inverse critical solution temperature with water. The process breaks a sludge into a water component containing residual amine and oil component if oil is present in the original sludge, and a solid matter component. The present invention uses alkali to minimize the amount of amine lost in the water component and in the solid matter component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.