초록 ▼

For separating oil from aqueous or solvent dispersions the dispersion is passed through a porous flat-shaped textile article which comprises at least partly of oleophilic fibres each having a titer below 1 dtex. The flat-shaped textile article is preferably a three dimensional article, and can have

For separating oil from aqueous or solvent dispersions the dispersion is passed through a porous flat-shaped textile article which comprises at least partly of oleophilic fibres each having a titer below 1 dtex. The flat-shaped textile article is preferably a three dimensional article, and can have a pile and possibly also a substrate comprising of extremely fine oleophilic artificial fibres. The pile threads and eventually also the threads of the substrate are split by means of a swelling agent into many extremely fine oleophilic fibres having a low titer. The small and very small oil drops in the dispersion are withheld on the extremely fine oleophilic fibres and coalesce to larger oil droplets or oil drops which rise to the surface of the liquid due to their lower density than the liquid. The oil can be easily removed from the surface of the liquid.

대표청구항 ▼

A method for separating oil from oil bearing aqueous or solvent liquid dispersions wherein the oil has a lower density than the liquid dispersions, said method being characterized in that an oil containing liquid disperson is passed through a porous textile flat-shaped article having upstanding free

A method for separating oil from oil bearing aqueous or solvent liquid dispersions wherein the oil has a lower density than the liquid dispersions, said method being characterized in that an oil containing liquid disperson is passed through a porous textile flat-shaped article having upstanding free ended piles formed at least partly of oleophilic fibers each having a titer between 0.05 and about 0.5 dtex whereby very small oil drops having a diameter of about 1 to 30 microns in the dispersions are withheld on the oleophilic fibers and coalesce to larger oil droplets which rise to the surface of the liquid dispersions due to their lower density than the liquid dispersions, the said porous textile article being thereby continuously and automatically cleaned by said coalescence from oil agglomerations, so that the fibers are always prepared for new coalescing actions.