FIELD: chemistry.
SUBSTANCE: invention relates to processing dust-forming material. The method involves binding dust by mixing dust-forming material with a composition. This composition contains aqueous dispersion of polytetrafluoroethylene, which contains 50 parts/million or less fluorine-containing emulsifier. After mixing, polytetrafluoroethylene fibre is formed, while compressing and displacing the mixture at temperature ranging from 20°C to 200°C. The dust binding composition contains an aqueous dispersion of polytetrafluoroethylene with average particle diametre from 0.1 to 0.5 mcm. Dust-forming material is powdered.
EFFECT: reduction of potential hazard to the environment with highly-efficient prevention of dust formation.
4 cl, 1 tbl, 6 ex
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