| 摘要 |
<p>A method of de-hazing distillate fuel is disclosed which comprises adding to the fuel a solution of a halide salt dissolved in an alcohol, and an alcohol soluble organosiloxane. The halide salt may be the chloride of magnesium, cadmium, copper, nickel or the tetra methyl ammonium group, for example the salt may have the formula MgCl2.6H2O or (CH3)4NCl. The organosiloxane may be a cyclic, linear or branched material and may have e.g. a minor amount of siloxane units having the general formula <MATH> and a minor amount of siloxane units having the general formula <MATH> in which each R represents a substituted or unsubstituted hydrocarbon group of up to ten carbon atoms, a has the value 0, 1, 2, or 3, b has the value 0, 1 or 2, c has the value 1 or 2, and each Z represents a group linked to the silicon atom and comprising a functional organic group. Each group Z may be a group selected from the polyoxyalkylene group R min (OCH2CH2)p(OCH2CH.CH3)OR sec , the amine R min NHQ, the quaternary ammonium salt R min NR<2>3X, the carboxylate group R min CO2M, the sulphonate group R min SO3M, or the hydroxyl group, in which R min represents a group which provides a link to the silicon atom through an oxygen or a carbon atom, p has a value in the range 1 to 100 , r has a value in the range 0 to 50, the sum of p and q is in the range 2 to 100, R sec represents a hydrogen atom, an alkyl group or an acyl group, Q represents a hydrogen atom or a group R min NHQ, each R<2> represents an alkyl group, X represents a halide ion and each group M represents a cation.</p> |
