Amine phosphate salts and phosphoramides
AssigneeChevron Research Company
InventorBruce W. Hotten
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Abstract
A mixture containing a major proportion of amine phosphate salts and a minor proportion of phosphoramides is prepared by reacting a triaryl phosphate and an aliphatic amine in the presence of a catalytic amount of a trialkyl borate. Certain of these mixtures are useful as additives for lubricating oils.
Claims9
A process comprising heating a triaryl phosphate and a primary or secondary aliphatic amine in the molar ratio of 1:1-20 respectively, at a temperature of 100.degree.-200.degree. C. for 0.5 to 30 hours in the presence of a catalytic amount of a trialkyl borate wherein the alkyl portion contains from 2 to 6 carbon atoms, to yield a mixture comprising a minor proportion of phosphoramide and a major proportion of phosphate salt.
Dependencies are inferred from the claim text.