FIELD: chemical industry.
SUBSTANCE: invention relates to a method for purifying liquid perfluoroorganic compounds (PFOC) such as perfluorodecalin (PFD) and perfluoro-N-(4-methylcyclohexyl)-piperidine (PMCP), differs from the known ones in that the efficiency of removing foreign microimpurities of non-fluorinated and foreign organic substances increases in liquid PFOC, thanks to extraction with warm ethyl alcohol with intense stirring, at the same time, guaranteed removal of dust and microbial particles is ensured by extinguishing the electrostatic charge of PFOC due to neutralization and dissipation of electrostatic charge and grounding of equipment, followed by filtering out microparticles and reducing secondary pollution with dust and microbial particles, due to carrying out all operations in a closed, dust-free circuit.
EFFECT: use of the proposed method makes it possible to increase the extraction activity of foreign organic microimpurities and reduce the electrostatic charge of liquid PFOC, which are dielectrics with an ohmic resistance of 1·1024 Ohms.
9 cl, 2 ex, 3 tbl, 4 dwg
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