DISSOCIATION OF ZINC DIALKYLDITHIOPHOSPHATE AND ITS INTERACTION WITH SUCCINIMIDE DISPERSANT

Chinese Journal of Applied Chemistry ›› 1990, Vol. 0 ›› Issue (5): 64-67.

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DISSOCIATION OF ZINC DIALKYLDITHIOPHOSPHATE AND ITS INTERACTION WITH SUCCINIMIDE DISPERSANT

Lu Qun, Yang Xiaozhen, Zhu Shannong

Institute of Chemistry, Academia Sinica, Beijing 100080

Received:1989-10-28 Revised:1990-05-04 Published:1990-10-10 Online:1990-10-10

Abstract

Abstract: The system of zinc dialkyldithiophosphate(ZDP)in lubricating base oil has been studied by using ³¹P-NMR. At low concentration of ZDP a phosphorated compound resonating at chemical shift of 86ppm was found. This indicates that there exists a chemical equilibri-um which is related to ZDP dissociation in the base oil and depends on the concentration of ZDP. A mechanism was proposed about the interaction between ZDP and succinimide dispersant.

Key words: ³¹PrNMR, zine dialkyldithiophosphate, interaction, additive

Lu Qun, Yang Xiaozhen, Zhu Shannong. DISSOCIATION OF ZINC DIALKYLDITHIOPHOSPHATE AND ITS INTERACTION WITH SUCCINIMIDE DISPERSANT[J]. Chinese Journal of Applied Chemistry, 1990, 0(5): 64-67.

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DISSOCIATION OF ZINC DIALKYLDITHIOPHOSPHATE AND ITS INTERACTION WITH SUCCINIMIDE DISPERSANT

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