On 4th-6th of July 2018, the University of Cantabria and the IQS School of Engineering (Universitat Ramon Llull), partners of the KET4F-Gas project, presented a communication at the XXXV National Conference of Chemical Engineering that was held in Salamanca (Spain). Preliminary results on  the thermodynamic evaluation of the use of ionic liquids for the selective separation of hydrofluorocarbons using the soft-SAFT state equation were presented.