FILTER MATERIAL FOR FINE PURIFICATION OF GASES AND PRODUCTION METHOD Russian patent published in 2011 - IPC B01D39/16 B01D53/02 B82B3/00 

FIELD: chemistry.

SUBSTANCE: disclosed is filter material which contains polysulphone microfibre with diameter 5-10 mcm and polydiphenylene phthalide nanofibre with diameter 300-500 nm with weight ratio of polydiphenylene phthalide fibre to polysulphone fibre equal to 1:(5-25). The invention also discloses a method of producing material through electrical forming of fibre from a solution which involves deposition of microfibres with diameter 5-10 mcm onto an electrode from a polysulphone-dichloroethane-electrolyte system, and simultaneous deposition onto the electrode of nanofibres with diameter 300-500 nm from a polydiphenylene phthalide-cyclohexanone-dimethylformamide-electrolyte system.

EFFECT: invention increases efficiency of cleaning gases at high temperatures.

3 cl, 1 tbl, 1 ex