Patent ID: 9650553
Date: 2017-05-16
CPC Classifications: B01F,C09K,H01B

Claim:
1. An azeotropic or quasi-azeotropic composition comprising chloromethane and at least one or more compound(s) selected from 2,3,3,3-tetrafluoropropene, 3,3,3-trifluoropropene, 1,1,1,2,2-pentafluoropropane, E/Z-1,1,3,3,3-pentafluoropropene, E/Z-1,2,3,3,3-pentafluoropropene, and 1,1-difluoroethane, wherein the composition comprises either from 0.5 to 70 mol % of chloromethane and from 99.5 to 30 mol % of at least one or more compound(s) selected from 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane, and 3,3,3-trifluoropropene, or from 55 to 95 mol % of chloromethane and from 45 to 5 mol % of at least one or more compound(s) selected from 1,1,1,2,2-pentafluoropropane, E/Z-1,1,3,3,3-pentafluoropropene, and E/Z-1,2,3,3,3-pentafluoropropene.