Classifications

• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/003—Marking, e.g. coloration by addition of pigments
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/10—Liquid carbonaceous fuels containing additives
  • C10L1/14—Organic compounds
  • C10L1/18—Organic compounds containing oxygen
  • C10L1/185—Ethers; Acetals; Ketals; Aldehydes; Ketones
  • C10L1/1857—Aldehydes; Ketones
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
  • C10M171/007—Coloured or dyes-containing lubricant compositions

Definitions

• the present invention relates to a method for the marking of oil products and of organic solvents.
• oil products such as fuel oils, petroleum fractions for motor traction and the like, e.g. gasoline, kerosene and so on, or organic solvents such as turpentine, alcohols and so on, is associated the different selling price which the same oil product or solvent may have, because of the taxation to which it is subjected according to the final use.
• Diesel oil for agricultural or fishing purposes is taxed less than Diesel oil for motor traction.
• the marking substances which can be used to this purpose should be stable under the application conditions, not present in the natural products; they should be of such a type as not to affect the physico-chemical properties of the organic solvent or of the oil product, they should be sufficiently soluble and preferably their use should be allowed also in the form of concentrated solutions; they should further be eliminatable with difficulty or not quite eliminatable by physical or physico-chemical methods, usable in small amounts and moreover they should be detectable by simple, quick and sensitive analytical methods.
• alkyl (C1-C4)-phenyl-ketone defined according to the present invention, allows working under conditions of higher stability and sensitivity in comparison with some recent tracers which have been the subject of particular interest, such as nitro-derivatives of benzene and homologues thereof.
• the alkyl (C1-C4)-phenyl-ketone has the advantages of being a highly soluble liquid (possibility of preparing a liquid masterbatch), not toxic and not requiring particular expedients for handling.
• aceto-phenone because of the absence of nitrogen in its structure, is more resistant to reducing agents and is more easily detectable and measurable, also in amounts in the order of 100 ppm, by a simpler chromatic detection text.
• the present invention provides a method for the marking of oil products and of organic solvents, characterized by the addition of a small amount of an alkyl (C1-C4)-phenyl-ketone as a tracing substance to said solvents or oil products.
• methyl-phenyl-ketone acetophenone
• any organic solvent can be marked, such as turpentine, acetone, alcohols, glycols, esters, aliphatic amines or any product or oil product cut, such as Diesel oil, gasoline, kerosene, benzene, toluene, xylene, aliphatic hydrocarbons and cyclohexane.
• alkyl-phenyl-ketone which can be used as marking agent can vary within wide limits, the minimum amount being only dependent on the sensitivity of the detection text. Acceptable working results are obtained by weight amounts comprised from 100 to 10,000 ppm, on the marked product.
• alkyl (C1-C4)-phenyl-ketones as marking substances, many advantages are obtained.
• acetophenone is a known product widely used.
• the marking products used in the present invention can be added either as a highly concentrated solution (liquid master-batch), or as such, because they are liquids and because of their easy and complete solubility in aromatic hydrocarbons as well as in the main industrial solvents.
• Suitable solvents are for instance the aromatic and/or aliphatic hydrocarbons.
• the simple identification method referred to herein does not require a complicated apparatus and can be quickly performed also by a non-specialized worker.
• Said method comprises bringing into contact a small volume, generally about 20 cm3, of marked oil product or of marked solvent with a certain amount of methanol, of reagent and of an aqueous-methanolic solution of potassium hydroxide, as illustrated in the examples.
• Example 1 1,000 cm3 were obtained of a mixture containing 100 ppm of tracer. On 20 cm3 of the marked Diesel oil the test was carried out as described in Example 1. Two layers were obtained, the lower of which was coloured purple with a much lower intensity than that of the Example 1, but nevertheless still apparent.
• acetophenone 1 g was dissolved in 1,000 cm3 of gasoline. A concentration of 1,000 ppm was obtained without any particular colouration of the gasoline. 100 cm3 of marked gasoline were added to 900 cm3 of un-marked gasoline. 1,000 cm3 were obtained of gasoline containing 100 ppm of tracer. 20 cm3 of this mixture were handled as described in example 1 and, also in this case, after 5 minutes a purple colouration was obtained. By carrying out the test on 20 cm3 of un-marked gasoline no colouration was obtained.

Landscapes

• Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Health & Medical Sciences (AREA)
• Emergency Medicine (AREA)
• Lubricants (AREA)
• Color Printing (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
• Paints Or Removers (AREA)
• Application Of Or Painting With Fluid Materials (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (3)

Family

ID=11190735

Family Applications (1)

Country Status (7)

Cited By (4)

Citations (3)

• 1987
  • 1987-09-28 IT IT22050/87A patent/IT1222752B/it active
• 1988
  • 1988-09-26 DE DE8888308912T patent/DE3870129D1/de not_active Expired - Fee Related
  • 1988-09-26 EP EP88308912A patent/EP0310319B1/de not_active Expired - Lifetime
  • 1988-09-26 AT AT88308912T patent/ATE74949T1/de not_active IP Right Cessation
  • 1988-09-26 ES ES198888308912T patent/ES2032973T3/es not_active Expired - Lifetime
  • 1988-09-27 PT PT88601A patent/PT88601B/pt not_active IP Right Cessation
• 1992
  • 1992-06-26 GR GR920400764T patent/GR3005039T3/el unknown

Patent Citations (3)

Non-Patent Citations (1)

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