Patent ID: 6994799

Claim:
A method of making a fluid composition, comprising: contacting a mixture of a raffinate-1 stream or a raffinate-2 stream, CO, and C 1 -C 4 alkanol with a carbonylation catalyst to provide a composition containing: (a) a compound of formula I: wherein R 1 is linear C 3 -C 6 alkyl, and R 2 is C 1 -C 4 alkyl; (b) a compound of formula II: wherein R 1 is branched C 3 -C 6 alkyl, and R 2 is C 1 -C 4 alkyl; and R 1 of formula I and R 1 of formula II have an equal number of carbons, with formula I and formula II being present at a weight ratio of 2-100:1; and (c) a compound of the formula III: wherein R 1 is C 3 -C 6 alkyl, R 2 is C 1 -C 4 alkyl, and R 3 is C 1 -C 4 alkyl.