Compositions for recovering an organic material from an oily layer on a body of water
US4502975A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1982 |
| Grant date | Mar 5, 1985 |
| Priority date | — |
| Expiry date | Sep 29, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/925
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention is directed to a composition for recovering a liquid organic material comprising: PA1 I. about 1 to about 30 wt. % of at least one of (a) benzylidene sorbitol, benzylidene xylitol or derivatives thereof, (b) hydrogenated castor oil, (c) 12-hydroxystearic acid, (d) 9,10-dihydroxystearic acid and (e) an amide of the member (b), (c) or (d), the composition further comprising PA1 II. about 15 to about 70 wt. % of a hydrophilic solvent serving as a good solvent for the component I, and/or PA1 III. about 15 to about 80 wt. % of at least one solvent selected from the group consisting of a hydrophobic solvent having a solubility of up to 5 in water, cyclohexanone, alkylcyclohexanone, N-cyclohexyl-2-pyrrolidone and N-alkyl-2-pyrrolidone, the components II and III being conjointly present when the component I is the compounds under (a). With use of the composition of the invention, liquid organic materials over a body of water can be effectively gelled and collected with high recovery ratio and less water content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.