LOW SULFUR METAL DETERGENT-DISPERSANTS

摘要

A process for preparing alkylhydroxybenzoate detergent-dispersant additiv es having low sulfur content and high TBN is described. The alkali metal alkylhydroxylbenzoate, alkaline earth metal alkylhydroxybenzoate and overbas ed alkaline earth metal alkylhydroxybenzoate reaction products described have a sulfur content in the range of from about 0.1 to 1.2 wt % are effective anti-corrosive detergent-dispersant additives in lubricating oil composition s.