▎ 摘　　要

NOVELTY - Entropic filters developed using modern nanocarbon materials, pure and decorated with selected zirconium dioxide or iron(II, III) oxide nanoparticles, used for low-temperature separation of the 3He isotope from a mixture of liquid and superfluid helium. Filters are made of carbon nanotubes, and in the preferred variant of carbon nanotubes with various degrees of order. A reduced graphene oxide flake graphene filter is made as described in Example ID of the specification. The materials from which the filter is then made are in the form of compressed pellets. USE - The entropic filters are useful for obtaining the helium-3 isotope in the process of cryogenic separation. ADVANTAGE - None given.