LUBRICANT COMPOSITION FOR REGENERATION PROCESSING AND MANUFACTURING METHOD OF LUBRICANT BASE OIL

摘要

PROBLEM TO BE SOLVED: To provide a lubricant composition for regeneration processing capable of being regenerated as a lubricant base oil by conducting simple regeneration processing even after using them.;SOLUTION: The lubricant composition for regeneration processing contains a dispersion agent containing a base oil consisting of at least one of mineral oil and synthetic oil having a viscosity index of 100 or more and a percentage of carbon atoms of paraffin content (%CP) by ring analysis with a n-d-M method of 60% or more, and (A) one or more kind of compound selected from alkenylsuccinic acid imide, borate of alkenylsuccinic acid imide, alkylsuccinic acid imide and borate of alkylsuccinic acid imide, the dispersion is contained at 0.01 mass% to 0.3 mass% in terms of nitrogen based on total amount of the composition, the one or more kind of compound selected from borate of alkenylsuccinic acid monoimide and borate of alkylsuccinic acid monoimide is contained at 0.01 mass% to 0.3 mass% in terms of the borate content based on the total amount of composition, B/N ration which is a mass ration of boron and nitrogen in the dispersion agent is 0.5 or more when one or more kind of compound selected from borate alkenylsuccinic acid monoimide and borate of alkylsuccinic acid monoimide is contained in the dispersion agent, the phosphorus amount is 500 mass.pps or less based on the total amount of composition and the amount of a sulfate ash is 0.5 mass% or less based on total amount of the composition.;COPYRIGHT: (C)2015,JPO&INPIT