Methods for cleaning up liquids using absorbent pellets
US5082563A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1989 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | Jul 20, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/924
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Method for absorbing, removing, and for cleaning up a first liquid floating on or in a second liquid, the method employing absorbent pellets which, in preferred embodiments, have a particular size, density, and configuration. The method can include steps of introducing the pellets onto or into the floating liquid to be removed; in preferred embodiments additional steps of agitation and spraying or applying a surfactant can be employed. The pellets containing the liquid to be removed can be removed from the surface of the second liquid; from an intermediate location above the lowermost depth of the liquid; or from the bottom level of the liquid or the bottom of the container or reservoir holding the liquid. A method for making pellets for cleaning up a first liquid floating on or in a second liquid; and a method for making pellets for absorbing a combustible material to produce fuel pellets. A method for producing fuel pellets. A fuel pellet produced by fabricating a pellet, preferably a cellulose pellet, and having it absorb combustible material. A recovery pellet, preferably a cellulose pellet, for absorbing a liquid and from which the absorbed liquid can then be recovered. A pell…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.