METHOD OF OBTAINMENT OF SUCCINITE OLIGOMER OF ETHYLENE AS INTERMEDIATE PRODUCT OF SYNTHESIS OF ALKENYLSUCCINIMIDE AND A LUBRICATING COMPOSITION

摘要

1. A process for preparing ethylene suktsinirovannogo oligomer comprising reacting equimolar amounts of maleic anhydride and α-dialkylammonium ethylene oligomer having a number average molecular weight of 300-700 general formula! ! with vigorous stirring of the reaction mass, number of revolutions of the stirring device 1400-2000 rev / min, first at a temperature of 60-80 ° C for 1.0-1.5 hours, the reaction mixture was stirred in the presence of azo-bis-isobutyronitrile in an amount of 0.1 0.2 wt.%, then the reaction mixture is stirred at a temperature of 150-155 ° C for 2.0-2.5 hours with the addition of azo-bis-isobutyronitrile in an amount of 0.1-0.2 wt.%, then The reaction mixture is stirred at a temperature of 150-155 ° C for 1.5-2.5 hours with the addition of azo-bis-isobutyronitrile in an amount of 0.1-0.2 wt.%, the thus arr azom suktsinirovanny ethylene oligomer is dissolved in the recovered waste oil in a weight ratio of 1: 1 and metered technical polyethylene polyamines in a molar ratio suktsinirovanny α-oligomer of ethylene: technical polyethylenepolyamines = 1: 1 ÷ 1,5 and a temperature of 25-60 ° C for 1, 0-2.0 h are the condensation, and then at a temperature of 140-150 ° C for 2.5-3.5 hours the reaction water was distilled off, the resulting alkenyl succinimide is filtered at a temperature of 60-80 ° C and used as a detergent-dispersant additive to succinimide composite smazoch nym oil. ! 2. A method according to claim 1, characterized in that polyethylene polyamines are used as technical polyethylenepolyamines TU 2413-21400203312 "polyethylenepolyamines technical" manufactured by JSC "Caustic" Sterlitamak and polyethylenepolyamines TU 2413-35700203447 "technical polyethylenepolyamine (PEP)" of "Ur