Nitrated extreme pressure additives

C - Chemistry – Metallurgy – 07 – C

Patent

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Details

C07C 201/08 (2006.01) C07B 43/02 (2006.01) C10M 133/32 (2006.01)

Patent

CA 2640262

This invention relates to processes for making nitro compounds derived from C2- C30 unsaturated fatty acids; C2-C30 unsaturated fatty oils; esters derived from the reaction of C1-C20 alcohols with unsaturated C2-C30 fatty acids; C2- C20 polyolefins; C4-C20 polydiolefins; C8-C20 copolymers derived from polyolefins and vinyl aromatics; and C4-C30 alkylated phenols using nitric acid or gaseous nitrogen dioxide. This class of extreme-pressure additives was found extremely effective in processing steel, stainless steel and special titanium and nickel or low-iron alloys.

La présente invention concerne des procédés de fabrication de composés nitro dérivés d'acides gras insaturés en C2 à C30 ; d'huiles grasses insaturées en C2 à C30 ; d'esters dérivés de la réaction d'alcools en C1 à C20 avec des acides gras insaturés en C2 à C30 ; des polyoléfines en C2 à C20 ; des polydioléfines en C4 à C20 ; des copolymères en C8 à C20 dérivés de polyoléfines et de composés aromatiques de type vinyle ; et des phénols alkylés en C4 à C30 utilisant de l'acide nitrique ou du dioxyde d'azote gazeux. On a constaté que cette classe d'additifs à pression extrême était extrêmement efficace dans le traitement de l'acier, de l'acier inoxydable et de titane et nickel ou d'alliages à faible teneur en fer spéciaux.

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