Improved leaded aviation gasoline

Details Improved leaded aviation gasoline Improved leaded aviation gasoline

C - Chemistry, Metallurgy

10

L

C10L 1/18 (2006.01)

Patent

CA 2562809

Aviation gasolines having an enhanced peak indicated mean effective pressure are provided by admixing with a leaded base aviation gasoline an aromatic amine of the formula NH2-Ar-(R1)n wherein R1 is selected from C1-C10 alkyl, halogen, and mixtures thereof provided that when R1 is alkyl it occupies the meta- or para-positions on the aromatic ring, Ar is a phenyl aromatic group and n is an integer from 0 to 3 to provide an aviation gasoline having a peak indicated mean effective pressure as determined by ASTM D-909 of greater than about 200 psi.

L'invention concerne des essences d'aviation présentant une pression moyenne effective indiquée maximale accrue. Ces essences sont obtenues par mélange d'une essence d'aviation de base au plomb et d'un amine aromatique de formule NH¿2?-Ar-(R?1¿)¿n?, dans laquelle R?1¿ est choisi parmi alkyle C¿1?-C¿10?, halogène et des mélanges de ceux-ci, à condition que lorsque R?1¿ représente alkyle, il occupe les positions méta ou para sur le cycle aromatique, Ar représente un groupe aromatique phényle et n est un nombre entier compris entre 0 et 3. L'essence d'aviation ainsi obtenue présente une pression moyenne effective indiquée maximale supérieure à 200 psi approximativement selon ASTM D-909.

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