| abstract |
In a process for the separation of oil from an oil-in-water dispersion by coalescence followed by separation of coalesced drops, coalescence is carried out at the surface of a solid material manufactured by contacting a solid material having active H atoms in surface groups or a polyolefin in the presence of water with a compound Si(R1)(R2)(R3)(R4), in which R1 is a (cyclo)aliphatic group containing one or more amino groups, R2 a hydrolyzable group and R3 and R4 a hydrolyzable or non-hydrolyzable organic group or a hydrolyzable atom. |