Translation of "oil binding agent" into Portuguese

Highly absorbent agents used for physically removing spilled oil in case of leakages and oil accidents occurring in water bodies, industry, work-shops, on roads, etc. Materials that have been found useful for this service vary from simple, naturally occurring materials such as straw, sawdust, and peat to synthetic agents, such as polyurethane foam and polystyrene powder. (Source: FUNKE / PZ)