FIELD: process engineering.
SUBSTANCE: invention relates to automotive industry. In compliance with this invention, carbon-bearing and silicon-bearing particles are mixed with organic matter to mould the obtained mix by extrusion. Then, pyrolysis and siliconising are performed. Said organic matter represents polyamide taken in amount of 5-15 wt %. Filter of solid particles thus obtained features BET-surface over 350 m2/g.
EFFECT: better filter efficiency.
6 cl, 1 ex
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