Mineral oils with improved conductivity and cold flowability
AssigneeClariant Produkte (Deutschland) GmbH
InventorsMatthias Krull, Werner Reimann
Life of this patent
Estimating the term…
Abstract
Mineral oil distillates having an aromatics content of less than 21% by weight, a water content of less than 150 ppm and a conductivity of at least 50 pS/m, and comprising from 0.1 to 200 ppm of at least one alkylphenol-aldehyde resin (constituent I) which includes a structural element of the formula in which R5 is C1-C200-alkyl or C2-C200-alkenyl, O—R6 or O—C(O)—R6, R6 is C1-C200-alkyl or C2-C200-alkenyl and n is from 2 to 100, and from 0.1 to 200 ppm of at least one polar oil-soluble nitrogen compound (constituent II), excluding those mineral oil distillates in which between 0.001 and 10 ppm of an oil-soluble, organic sulfonic acid-ammonium salt are present.
Claims17
A method for improving the electrical conductivity of a mineral oil distillate having a water content of less than 150 ppm, the mineral oil distillate being selected from the group consisting of jet fuel, gasoline, kerosene, diesel oil, heating oil, the mineral oil distillate having an electrical conductivity of below 10 pS/m, wherein the method comprises the step of adding to the mineral oil distillate a composition which comprises at least one alkylphenol-aldehyde resin (constituent I) which has a structural element of the formula
- in which R5 is C1-C200-alkyl or C2-C200-alkenyl, O—R6 or O—C(O)—R6, R6 is C1-C200-alkyl or C2-C200-alkenyl, and n is from 2 to 100, and, from 0.1 to 10 parts by weight of at least one polar oil-soluble nitrogen compound (constituent II), based on the alkylphenol-aldehyde resin in such an amount that the mineral oil distillate has a conductivity of at least 50 pS/m.
A process for improving the electrical conductivity of mineral oil distillate having a water content of less than 150 ppm, the mineral oil distillate being selected from the group consisting of jet fuel, gasoline, kerosene, diesel oil, heating oil, the mineral oil distillate having an electrical conductivity of below 10 pS/m, and comprising from 0.1 to 200 ppm of at least one polar, oil-soluble nitrogen compound, said process comprising adding to the mineral oil distillate from 0.1 to 200 ppm of at least one alkylphenol-aldehyde resin which has a structural element of the formula
- in which R5 is C1-C200-alkyl or C2-C200-alkenyl, O—R6 or O—C(O)—R6, R6 is C1-C200-alkyl or C2-C200-alkenyl and n is from 2 to 100, so that the mineral oil distillate has a conductivity of at least 50 pS/m.
A process for improving the electrical conductivity of a mineral oil distillate having a water content of less than 150 ppm, the mineral oil distillate being selected from the group consisting of jet fuel, gasoline, kerosene, diesel oil, heating oil, the mineral oil distillate having an electrical conductivity of below 10 pS/m, and comprising from 0.1 to 200 ppm of at least one polar, oil-soluble nitrogen compound (constituent II), wherein the process comprises adding to the mineral oil distillate at least one alkylphenol-aldehyde resin (constituent I) which contains a structural element of the formula
- wherein R5 is C1-C200-alkyl or C2-C200-alkenyl, O—R6 or O—C(O)—R6, R6 is C1-C200-alkyl or C2-C200-alkenyl, and n is from 2 to 100, in an effective amount that the mineral oil distillate has a conductivity of at least 50 pS/m.
A mineral oil distillate having an aromatics content of less than 21% by weight, a water content of less than 150 ppm and a conductivity of at least 50 pS/m, the mineral oil distillate being selected from the group consisting of jet fuel, gasoline, kerosene, diesel oil, heating oil, the mineral oil distillate having an electrical conductivity of below 10 pS/m, and comprising from 0.1 to 200 ppm of at least one alkylphenol-aldehyde resin (constituent I) which contains a structural element of the formula
- wherein R5 is C1-C200-alkyl or C2-C200-alkenyl, O—R6 or O—C(O)—R6, R6 is C1-C200-alkyl or C2-C200-alkenyl and n is from 2 to 100, and from 0.1 to 200 ppm of at least one polar oil-soluble nitrogen compound (constituent II).
Dependencies are inferred from the claim text.