Experimental vapour-liquid equilibrium data and modeling for binary mixtures of 1-butene with 1,1,2,3,3,3-hexafluoro-1-propene, 2,2,3-trifluoro-3-(trifluoromethyl)oxirane, or difluoromethane

► VLE data for 1,1,2,3,3,3-hexafluoro-1-propene + 1-butene at (313.05 to 327.81) K. ► VLE data for 2,2,3-trifluoro-3-(trifluoromethyl)oxirane + 1-butene at (312.93 to 342.83) K. ► VLE data for the difluoromethane + 1-butene at (302.86 to 332.92) K. ► Experimental data correlated with the Peng-Robinson EoS with Wong-Sandler mixing rule.