Process for preparing lubricating oil compositions containing anti-wear agents

Abstract

Abstract A PROCESS IS PROVIDED FOR PREPARING LUBRICATING OIL COMPOSITIONS COMPRISING (A) AN OIL OF LUBRICATING VISCOSITY (B) AN EFFECTIVE AMOUNT OF A DISPERSING AGENT AND (C) A NITRATE OF A GROUP I OR GROUP II METAL IN AN AMOUNT EFFECTIVE TO SUBSTANTIALLY REDUCE WEAR, WHICH PROCESS COMPRISES CONTACTING A LUBRICATING OIL COMPOSITION CONTAINING A GROUP I OR GROUP II METAL DISPERSING AGENT AND HAVING DISPERSED THEREIN A BASIC REACTING GROUP I OR GROUP II METAL COMPOUND, WITH AN AMOUNT OF NITRIC ACID NOT GREATER THAN THE REQUIRED TO REACT WITH THE GROUP I OR GROUP II METAL PRESENT IN EXCESS OF THE METAL REQUIRED TO STOICHIOMETRICALLY COMBINE WITH THE DISPERSING AGENT. THE LUBRICATING OIL COMPOSITION ARE USEFUL FOR, AMONG OTHER THINGS, REDUCING THE WEAR IN INTERNAL COMBUSTION ENGINES, PARTICULARLY IN HIGH POWER OUTPUT ENGINES SUCH AS LOCOMOTIVE ENGINES AND THE ENGINES USED TO PROPEL OCEAN GOING VESSELES.

Inventors

• 👤 R Crocker

Bibliographic Details