| 摘要 |
<p>A method of preparing an oil absorbent composition comprises of heating and then de-mineralising a precursor plant material, such as a woody plant material, under conditions suitable to produce an oil absorbent composition comprising charcoal. The oil absorbent composition is contacted with a water repellent substance selected from an animal fat, a plant fat, a fatty acid, a fatty acid ester, a fatty alcohol, a glyceride (mono-, di- or tri-glyceride), paraffin wax, or mineral tar. Also disclosed are oil absorbent compositions per se, such as charcoal-based compositions, and to various uses of the compositions for efficiently and rapidly absorbing spilled oil, for example from water surfaces, or from bituminous sands.</p> |
