Method for producing sulfurized alkylphenols

Details Method for producing sulfurized alkylphenols Method for producing sulfurized alkylphenols

1988-09-26

1989-10-10

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 427, 568 23, 568 40, 568 75, C10M13502, C10M12900

Patent

active

048730076

ABSTRACT:
A process for preparing sulfurized alkyl-substituted phenol which comprises: (1) charging to a reaction system having a reaction vessel equipped with a reflux condenser, (a) alkyl-substituted phenol wherein the alkyl substituent comprises about 8 to about 50 carbons, (b) sulfur, (c) dihydric alcohol, (d) alkaline earth metal base, and (e) water in an amount of from about 0.02 to about 0.4 moles water per mole of alkyl-substituted phenol; (2) reacting (a)-(e) at a temperature of about 270 to about 450.degree. F. at atmospheric pressure for about 1 to 5 hours, said reaction being conducted such that the water charged to the reaction vessel is retained therein by the reflux condenser.

REFERENCES:
patent: 3746698 (1973-07-01), Hunt et al.
patent: 4510807 (1985-05-01), Hori et al.
patent: 4664824 (1987-05-01), Chang et al.
patent: 4744921 (1988-05-01), Liston

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