Method for separating halocarbons

A method for isolating a first halocarbon from a composition comprising a first halocarbon and at least one second halocarbon which is different from the first halocarbon, the method comprising:

• cooling a composition comprising a first halocarbon and at least one second halocarbon at or below the freezing point of the first halocarbon but above the freezing point of the at least one second halocarbon and
• recovering the first halocarbon from the at least one second halocarbon,
• wherein the first halocarbon is a compound of the Formula (I) or Formula (II), and the at least one second halocarbon is a different compound of the Formula (I) or Formula (II) wherein:
• Formula (I) is a haloalkane having the formula CyHzX, wherein X═FaClbBrcId having one or more halogen atoms, or a combination of different halogen atoms independently selected from F, Cl, Br, I with the total number of halogen atoms equals to 2y+2−z;
• y is an integer of from 1 to 4;
• and z is an integer of from 0 to 9 such that z=2y+1;
• a, b, c, d are each an integer of from 1 to 10 and wherein a+b+c+d=2y+2−z;
• and
• Formula (II) is a haloalkene having the formula CyHzX, where X═FaClbBrcId one or more halogen atoms, or a combination of different halogen atoms independently selected from F, Cl, Br, I with the total number of halogen atoms equals to 2y−z;
• y is an integer of from 1 to 4;
• and z is an integer of from 0 to 7 such that z ranges from 0 to 2y−1;
• a, b, c, d are each an integer of from 1 to 8 and wherein a+b+c+d=2y−z.