Method for removing amine from oil
US4863607A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1987 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Aug 3, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D3/38
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is a method for using water to remove amine from an oil-amine component. The oil-amine component is typically produced in prior art processes using an amine having an inverse critical solution temperature with water to break emulsions and sludges. The steps of the present invention include adding water to the oil-amine component in an amount sufficient to form a water-amine azeotrope with substantially all the amine in the oil-amine component followed by heating to remove the azeotrope. The method of the present invention may be used to remove amine from an oil-amine component even where the amine is present in an amount as low as 10% or less by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.