Organometallic complex-antioxidant combinations, and concentrates and diesel fuels containing same

Patent 5344467 Issued on September 6, 1994. Estimated Expiration Date:

September 6, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Re29488

2151432

2203374

2301861

2336598

2343756

2420122

2560542

2643262

2824115

More ...

Inventors

Assignee

The Lubrizol Corporation

Application

No. 699423 filed on 05/13/1991

US Classes:

44/358, Organic compound containing the heavy metal or aluminum44/367, Nitrogen bonded directly or indirectly to the heavy metal or aluminum44/415Compound of indeterminate structure prepared by reacting a phenol, an aldehyde, and ammonia or substituted ammonia

Examiners

Primary: McAvoy, Ellen M.

Attorney, Agent or Firm

Hunter; Frederick D.

Foreign Patent References

671137 CA. 09/12/1963
699862 CA. 12/12/1964
0073615 EP. 03/12/1983
0092755 EP. 11/12/1983
0092756 EP. 11/12/1983
0113856 EP. 12/12/1983
0104783 EP. 04/12/1984
0261795 EP. 03/12/1988
0283294 EP. 03/12/1988
2443017 DE. 03/12/1975
1159705 FR. 02/12/2012
1179418 FR. 12/12/2012
1194036 FR. 05/12/2012
WO8701720 WO. 03/12/1987
8701721 WO. 03/12/1987
8802392 WO. 04/12/1988
9007561 WO. 07/12/1990
794015 SU. 01/12/1981
1182880 GB. 03/12/1970
1566106 GB. 04/12/1980
2064547 GB. 06/12/1981
2116583 GB. 09/12/1983
2248068 GB. 03/12/1992

International Class

C10L 001/30

Abstract

This invention relates to combinations of (A) organometallic complexes and (B) antioxidants. These combinations can be used in diesel fuels for operating diesel engines equipped with exhaust system particulate traps. The combination of (A) and (B) is useful in lowering the ignition temperature of exhaust particles collected in the trap. The organometallic complex (A) is soluble or stably dispersible in the diesel fuel and is derived from (i) an organic compound containing at least two functional groups attached to a hydrocarbon linkage, and (ii) a metal reactant capable of forming a complex with the organic compound (i), the metal being any metal capable of reducing the ignition temperature of the exhaust particles. The functional groups include =X, --XR, --NR2, --NO2, =NR, =NXR, =N--R*--XR, ##STR1## --CN, --N=NR and --N=CR2 ; wherein X is O or S, R is H or hydrocarbyl, R* is hydrocarbylene or hydrocarbylidene, and a is a number (e.g., zero to about 10). Useful metals include Na, K, Mg, Ca, Sr, Ba, V, Cr, Fe, Co, Cu, Zn, Pb, Sb, and mixtures of two or more thereof. This invention is also directed to concentrates and diesel fuels, and to methods of operating a diesel engine equipped with an exhaust system particulate trap.

Other References

PCT/US92/03233--Search Report, Oct. 21, 1992
PCT/US92/03179--Search Report, Oct. 21, 1992
PCT/US92/03178--Search Report, Oct. 15, 1992
Stiglic et al, "Emission Testing of Two Heavy Duty Diesel Engines Equipped with Exhaust Aftertreatment", SAE Technical Paper Series, 900919, 41st Annual Earthmoving Industry Conference, Peoria, Ill., Apr. 3-5, 1990
"An Analysis of Possible Health Effects Due to the Use of a Copper Diesel Fuel Additive" (with appendices A-I), published May 7, 1990
"An Experimental Evaluation to Determine the Effect of an Organometallic Fuel Additive on Particulate Trap Regeneration" published Apr. 3-5, 1990
"Inhibition of Deterioration of Cracked Gasoline During Storage", Petersen, C. J., Industrial and Engineering Chemistry, vol. 41, (1949), pp. 924-928
Hunter et al., "The Azo-group as a Chelating Group. Part V. Metallic Derivatives of Arylazo-oximes and of Formazyl Compounds". J. Chem. Soc., 1941, pp. 820-823
Hunter et al., "The Associating Effect of the Hydrogen Atom. Part IX. The N-H-N Bond. Virtual Tautomerism of the Formazyl Compounds", J. Chem. Soc., 1941, pp. 823-826
Chemical Abstract 112:182741d, CA Selects: Fuel and Lubricant Additives, Issue 11, 1990, p. 2
Federal Register, vol. 55, No. 162, Aug. 21, 1990, Rules and Regulations, pp. 34120-34151
Stiglic et al., "Emission Testing of Two Heavy Duty Diesel Engines Equipped with Exhaust Aftertreatment", Garrett Automotive Group, Allied Signal Inc., 41st Annual Earthmoving Industry Conference, Apr. 1990
Wiedemann et al., "Application of Particulate Traps and Fuel Additives for Reduction of Exhaust Emissions", SAE Paper No. 840078, Feb. 27-Mar. 2, 1984
Simon et al., "Diesel Particulate Trap Regeneration Using Ceramic Wall-Flow Traps, Fuel Additives, and Supplemental Electrical Igniters", SAE Paper No. 850016, Feb. 25-Mar. 1, 1985
Covitch, "Oil Thickening in the Mack T-7 Engine Test. II--Effects of Fuel Composition on Soot Chemistry", SAE Paper No. 880259, Feb. 29-Mar. 4, 1988
Levin et al., "An Experimental Evaluation to Determine the Effect of an Organometallic Fuel Additive on Particulate Trap Regeneration", SAE Paper No. 900920, Apr. 3-5, 1990
Pistillo et al., "Lubrication of Low Emission Diesel Engines, Part 3", SAE Paper No. 902178, Oct. 22-25, 1990
Winsor, "New Diesels Mean New Demands on Oil, Fuel", Reprint from Heavy Duty Trucking, May 1990
International Search Report for PCT/US92/03180 mailed Oct. 21, 199