Studying the process of freons mixture separation on a structured packing Sultzer 500XAleksandr Pavlenko, Vladimir Zhukov, Nikolay Pecherkin, Ekaterina Slesareva, Christo Boyadjiev and Daniela Dzhonova-AtanasovaE3S Web Conf., 258 (2021) 11008DOI: https://doi.org/10.1051/e3sconf/202125811008