Conclusions
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1.
The components of the hetero-organic impurities which very greatly improve anti-wear properties of fuels are naphthenic acids in an amount of 0.002–0.01% by wt. and products from auto-oxidation of unstable hydrocarbons - olefinic-aromatic alcohols - in an amount of 0.02–0.04% by wt.
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2.
With increase in the temperature of fuel which is in contact with atmospheric oxygen, up to a limit, when liquid-phase oxidation of hydrocarbons is possible, the anti-wear properties do not become worse, but improve, due to the formation and accumulation of positively acting oxygenated compounds.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 9, pp. 49–52, September, 1970.
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Chertkov, Y.B., Ignatov, V.M. Effect of hetero-organic compounds of middle distillate fuels on their anti-wear properties. Chem Technol Fuels Oils 6, 700–703 (1970). https://doi.org/10.1007/BF00716550
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DOI: https://doi.org/10.1007/BF00716550