Methods for preparing, group II metal overbased sulfurized alkyl

Details Methods for preparing, group II metal overbased sulfurized alkyl Methods for preparing, group II metal overbased sulfurized alkyl

1986-10-21

1988-05-17

Dixon, Jr., William R.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252 33, 252 332, 252 334, 252 39, 568716, 568780, C10M12900

Patent

active

047449217

ABSTRACT:
The present invention is directed toward a method for preparing Group II metal overbased sulfurized alkylphenols. In particular, the present invention employs a sulfurization catalyst in the preparation of Group II metal overbased sulfurized alkylphenols. Use of a sulfurization catalyst in this preparation results in a product generally characterized as having lower crude sediment, a higher Total Base Number and lower viscosity than a similar product prepared without using a sulfurization catalyst.

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patent: 4518807 (1985-05-01), Hori et al.

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