Methods for preparing normal and overbased phenates

Details Methods for preparing normal and overbased phenates Methods for preparing normal and overbased phenates

1995-03-17

1996-06-25

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 427, C10M15922

Patent

active

055297056

ABSTRACT:
Processes for preparing normal and overbased calcium sulfurized alkylphenates. The processes are characterized by a sulfurization reaction using a lower carboxylic acid catalyst which does not use a polyol promoter, e.g., ethylene glycol. The process affords a calcium sulfurized phenate product which is essentially free of polyol oxidation products. The products are useful as additives for lubricating oils.

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