| 摘要 |
FIELD: lubricants. ^ SUBSTANCE: additive contains 10-50% metal dialkyl dithiocarbamate and 50-90% zinc dithiophosphate. The latter is a product of reaction of phosphorus pentasulfide with C3-C8-alcohol or C8-C12-alkylphenol followed by neutralization with zinc oxide. Metal dialkyl dithiocarbamate has general formula [R2NC(S)S]nMe, wherein Me is copper, nickel, cobalt, zinc, molybdenum, or cadmium; n valence of metal; and R C1-C8-alkyl radical. Lubrication composition contains 0.5 to 2.0 wt % of the indicated additive. Motor oil additive composition contains high-alkalinity sulfonate, phenate, alkali metal alkylsalicylate, ash-free dispersant, and 15-30% of the multipurpose additive. ^ EFFECT: upgraded antioxidant, antiwear, and detergent optionally substituted of lubrication oil and enabled preparation of motor oils with reduced content of phosphorus thereby prolonging lifetime of afterburner catalysts. ^ 3 cl, 8 tbl, 10 ex |
