Synergistic mixture

Patent metadata

Field	Value
Publication number	US-9562202-B2
Application number	US-201314037692-A
Country	US
Kind code	B2
Filing date	Sep 26, 2013
Priority date	Jul 16, 2007
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

A synergistic mixture comprising from 1 to 99.9% by weight of compounds having structural elements (I)

in which the free valencies on the oxygen atom and on the nitrogen atom may be combined to form a five-, six- or seven-membered ring and the benzene ring may also bear substituents at one or more of the free positions, and from 0.1 to 99% by weight of sulfur-containing organic compounds with antioxidant action. This synergistic mixture is suitable as a stabilizer for stabilizing inanimate organic material, especially mineral oil products and fuels, against the action of light, oxygen and heat.

First claim

The invention claimed is:

1. A turbine or jet fuel selected from the group consisting of Jet Fuel A, Jet Fuel A-1, Jet Fuel B, Jet Fuel JP-4, JP-5, JP-7, JP-8 and JP-8+100, Jet A and Jet A-1, comprising 12 to 480 mg/L relative to a total weight of the fuel of a mixture of components (A) and (B) comprising
(A) from 65 to 90% by weight of the mixture of (A) and (B) of at least one compound having at least one polycyclic phenolic compound of the following formula

(B) from 10 to 35% by weight of the mixture of (A) and (B) of at least one of a hydroxyl-containing diaryl sulfide, a reaction product of polyisobutene with thiophenol, and a reaction product of polyisobutenes with elemental sulfur,
where the sum of the two components (A) and (B) adds up to 100% by weight.

2. A method of improving thermal stability of a turbine or jet fuel selected from the group consisting of Jet Fuel A, Jet Fuel A-1, Jet Fuel B, Jet Fuel JP-4, JP-5, JP-7, JP-8 and JP-8+100, Jet A and Jet A-1, the method comprising combining the fuel with a stabilizer comprising 12 to 480 mg/L of a mixture of components (A) and (B) comprising
(A) from 65 to 90% by weight of the mixture of (A) and (B) of at least one compound having at least one polycyclic phenolic compound of the following formula

(B) from 10 to 35% by weight of the mixture of (A) and (B) of at least one of a hydroxyl-containing diaryl sulfide, a reaction product of polyisobutene with thiophenol, and a reaction product of polyisobutenes with elemental sulfur,
where the sum of the two components (A) and (B) adds up to 100% by weight.

3. A method of reducing deposits in a fuel system or combustion system of a turbine, the method combusting a turbine or jet fuel selected from the group consisting of Jet Fuel A, Jet Fuel A-1, Jet Fuel B, Jet Fuel JP-4, JP-5, JP-7, JP-8 and JP-8+100, Jet A and Jet A-1, the method comprising 12 to 480 mg/L of a mixture of components (A) and (B) comprising
(A) from 65 to 90% by weight of the mixture of (A) and (B) of at least one compound having at least one polycyclic phenolic compound of the following formula

(B) from 10 to 35% by weight of the mixture of (A) and (B) of at least one of a hydroxyl-containing diaryl sulfide, a reaction product of polyisobutene with thiophenol, and a reaction product of polyisobutenes with elemental sulfur,
where the sum of the two components (A) and (B) adds up to 100% by weight.

4. The fuel of claim 1 , wherein (A) is (XXXa) R 19 =methyl, R 20 =R 22 =H, R 27 =PIB.

5. The fuel of claim 1 , wherein (A) is (XXXb) R 19 =methyl, R 20 =R 22 =tert-butyl, R 27 =PIB.

6. The fuel of claim 1 , wherein (A) is (XXXc) R 19 =methyl, R 20 =tert-butyl, R 22 =methyl, R 27 =PIB.

7. The fuel of claim 1 , wherein (A) is (XXXd) R 19 =R 20 =methyl, R 22 =tert-butyl, R 27 =PIB.

8. The fuel of claim 1 , wherein (A) is (XXXe) R 19 =3-(dimethylamino)propyl, R 20 =R 22 =tert-butyl, R 27 =PIB.

9. The fuel of claim 1 , wherein (A) is (XXXf) R 19 =PIB, R 20 =R 22 =R 27 =H.

10. The fuel of claim 1 , wherein (A) is (XXXg) R 19 =PIB, R 20 =R 22 =H, R 27 =tert-butyl.

11. The fuel of claim 1 , wherein (A) is (XXXh) R 19 =PIB, R 20 =R 22 =tert-butyl, R 27 =H.

12. The fuel of claim 1 , wherein (A) is (XXXi) R 19 =PIB, R 20 =H, R 22 =R 27 =tert-butyl.

13. The fuel of claim 1 , wherein (A) is (XXXj) R 19 =PIB, R 20 =R 22 =R 27 =tert-butyl.

14. The fuel of claim 1 , wherein (A) is (XXXk) R 19 =PIB, R 20 =R 22 =H, R 27 =PIB.

15. The fuel of claim 1 , wherein (B) is a hydroxyl-containing diaryl sulfide.

16. The fuel of claim 1 , wherein (B) is a reaction product of polyisobutene with thiophenol.

17. The fuel of claim 1 , wherein (B) is a reaction product of polyisobutenes with elemental sulfur.

Assignees

• Basf Se

Inventors

• Lange Arno
• Posselt Dietmar

Classifications

• C10L1/2443

  heterocyclic compounds · CPC title

• C10M2219/06

  Thio-acids; Thiocyanates; Derivatives thereof · CPC title

• C10L1/2456

  sulfur with oxygen and/or nitrogen in the ring, e.g. thiazoles · CPC title

• C10L1/2412

  sulfur bond to an aromatic radical · CPC title

• C10L1/2283

  containing one or more carbon to nitrogen double bonds, e.g. guanidine, hydrazone, semi-carbazone, azomethine (C10L1/221, C10L1/226 take precedence) · CPC title