GB930768A - Fuel oil composition - Google Patents

Abstract

A fuel oil composition consists essentially of a small proportion of an additive dissolved in a base oil, the additive consisting of one or more of the diesters formed between one molecular proportion of a glycol or polyglycol having 2-10 carbon atoms per molecule and two molecular proportions of a mixture of (1) a chlorinated fatty acid and (2) a saturated fatty acid having at least 10 carbon atoms per molecule, or a mixture of such acids, or such a mixture containing a minor proportion of unsaturated acids and/or unsaponifiable matter, the mole ratio of (1):(2) being 1: 1/2 -2, and the base oil being a petroleum fuel oil which contains at least a substantial proportion (e.g. 20-80%), of a distillation residue. The base oil may be a blend of gas oil with either vacuum or atmospheric residue; specified glycols and polyglycols are mono-, di- and tri-ethylene glycols and propylene glycol; the chlorinated fatty acid may have the formula Cl Cn H2n COOH where n is an integer from 1 to 10, e.g. monochloracetic acid; and wool grease stearine is referred to as exemplary of a mixture of saturated fatty acids, from which the diester may be prepared. Specification 930,767 is referred to.