Continuous process for contacting of triglyceride oils with _an acid
US4240972A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1978 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | Dec 19, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11B3/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A continuous process of contacting crude oils, particularly triglyceride oils, with an acid for the purpose of removing phosphatides and trace metals is disclosed. The acid is introduced into a stream of heated oil immediately ahead of mixing means, such as a static-mixer, capable of achieving an acid droplet size smaller than 10 microns in diameter. The interfacial surface provided by these microscopic droplets allows the acid-oil contacting process to occur essentially instantaneously, requiring less acid and less acid-oil residence-time. The process is useful in treating crude oils prior to alkali-refining or prior to a bleaching treatment in preparation for steam-refining.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.