Patent ID: 8735628

Claim:
A process for forming a phosphite composition, comprising reacting a hydroxyaryl compound with an olefin in a complex hydrocarbon stream, wherein the complex hydrocarbon stream further comprises saturates to form an alkylate composition comprising two or more alkylated hydroxyaryl compounds; and reacting the two or more alkylated hydroxyaryl compounds with a phosphorous trihalide to form the phosphite composition, wherein the phosphite composition comprises: tris(monoalkylaryl)phosphite in an amount from 20 to 70 wt %; bis(monoalkylaryl)dialkylaryl phosphite in an amount from 15 to 60 wt %, tris(dialkylaryl)phosphite in an amount of from 0.1 to 20 wt %; and bis(dialkylaryl)monoaryl phosphite in an amount of from 2 to 20 wt %, and is a liquid at ambient conditions.