Method for purifying (hydro)halocarbon by reduced pressure distillation from azeotropic or azeotropic-like composition

A method for producing a (hydro)halocarbon comprising:

• a step of purifying a (hydro)halocarbon by reduced-pressure distillation of an azeotropic or azeotropic-like composition containing the (hydro)halocarbon and a compound different from the (hydro)halocarbon, wherein:
• the (hydro)halocarbon is cis-1-chloro-3,3,3-trifluoropropene and the compound different from the (hydro)halocarbon is 3-chloro-1,1,1,3-tetrafluoropropane, or
• the (hydro)halocarbon is cis-1,2-dichloro-3,3,3-trifluoropropene and the compound different from the (hydro)halocarbon includes at least one of 1,1-dichloro-3,3,3-trifluoropropene and trans-1,2-dichloro-3,3,3-trifluoropropene, or
• the (hydro)halocarbon is cis-1,2-dichloro-3,3-difluoropropene and the compound different from the (hydro)halocarbon includes at least one of trans-1,2-dichloro-3,3-difluoropropene, hydrogen fluoride, and water, or
• the (hydro)halocarbon is trans-1-chloro-3,3,3-trifluoropropene and the compound different from the (hydro)halocarbon includes at least one of 1,1,1,3,3-pentafluoropropane, 2-chloro-3,3,3-trifluoropropene, cis-1-chloro-1,3,3,3-tetrafluoropropene, 2-chloro-1,3,3,3-tetrafluoropropene, hydrogen fluoride, and water, or
• the (hydro)halocarbon is cis-1-chloro-2,3,3-trifluoro-1-propene and the compound different from the (hydro)halocarbon includes at least one of trans-1-chloro-2,3,3-trifluoro-1-propene, hydrogen fluoride, and water, and
• wherein the reduced-pressure distillation is performed using a distillation column with a column top pressure of 50 kPa or less.