| 摘要 |
<p>Additives for low-sulfur mineral oil distillates, comprising aromatic compounds having a hydroxyl group, a methoxy group and an acid functional group are provided to improve flowability and especially paraffin dispersion degree under cold conditions in the mineral oils or mineral oil distillates by adding suitable cold additives comprising aromatic compounds containing hydroxyl, methoxy and carboxyl groups to mineral oils or mineral oil distillates. An additive for fuel oils comprises: at least one copolymer of ethylene and an unsaturated ester; at least one oil-soluble polar nitrogen compound which is a reaction product of amines of the formula NR^6R^7R^8 (wherein R^6, R^7 and R^8 may be identical or different, at least one of R^6, R^7 and R^8 is an alkyl with 8 to 36 carbon atoms, a cycloalkyl with 6 to 36 carbon atoms, an alkenyl with 8 to 36 carbon atoms, particularly an alkyl with 12 to 24 carbon atoms, an alkenyl or cyclohexyl with 12 to 24 carbon atoms, and the remaining groups are hydrogen, an alkyl with 1 to 36 carbon atoms, an alkenyl with 2 to 36 carbon atoms, cyclohexyl or a group of the formula -(A-O)x-E or a group of the formula -(CH2)n-NYZ in which A is an ethyl or propyl group, x is ranged from 1 to 50, E is hydrogen, an alkyl with 1 to 30 carbon atoms, a cycloalkyl with 5 to 12 carbon atoms or an aryl with 6 to 30 carbon atoms, and n is 2, 3 or 4, and Y and Z are each independently H, an alkyl with 1 to 30 carbon atoms or -(A-O)x) with compounds containing at least one acyl group; and at least one aromatic compound of a formula 1, wherein R is H or an alkyl with 1 to 4 carbon atoms.</p> |
