Method and apparatus for decontaminating a liquid surfactant of dioxane
US5562808A · kind A · utility
2Cited by
14References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1993 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | Sep 21, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus are disclosed for decontaminating a liquid surfactant of a dioxane having a vapor pressure which is higher than the surfactant. A contaminated liquid surfactant is directed through an inclined conduit. A gas is directed into the inclined conduit, whereby the gas contacts the surfactant and transports the dioxane contaminant, which has volatilized in the inclined conduit, out of the inclined conduit, thereby decontaminating the surfactant. The liquid surfactant is discharged from the inclined conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.