Treatment of emulsions
US4846976A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1987 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | Jul 29, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D17/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filtration system for treating an emulsion containing water, an oil or a fat, an emulsifying agent and insoluble solid material (such as a maritime oil emulsion containing an anionic detergent and the solid, greasy calcium salt of the detergent) has a first hydrophobic microfilter (126) and a second hydrophobic microfilter (147). Both microfilters (126, 147) have a plurality of hollow porous fibers as the separating medium with the feed to the first filter (126) being applied to the outside of the fibers and the feed to the second filter (which is the permeate from the first filter) being applied down the lumens of the fibers. The first filter (126) removes the solid material and the second filter separates the oil or fat from the solid-free emulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.