FILTER MATERIAL (OPTIONS) Russian patent published in 2005 - IPC

FIELD: filter materials.

SUBSTANCE: invention relates to purification of liquids and gases to remove solids and can be used in a variety of industries utilizing filters in mainline and secondary production areas, in environmentally oriented waste water and emission gas treatment processes, in oil spill cases from tankers, oil pipelines, and oil storehouses, and also in need of collecting petroleum products from water surface. invention provides filter material composed of synthetic threads in the form of tubular hosiery constituted by two parts, one of which contains rubber crumb and the other polyurethane foam crumb at volume ratio 1:(1-4), respectively. According to claim 2, tubular hosiery consists of several interconnected alternating sections, in particular sections constituted by two parts, one of which contains rubber crumb and the other polyurethane foam crumb at volume ratio 1:(1-2), respectively, alternate with sections containing only polyurethane foam crumb.

EFFECT: improved quality of filtration, increased floatability on water surface to be purified, and increased purification area.

2 cl, 1 dwg, 1 tbl, 6 ex