Method for reducing viscosity increase in sooted diesel oils

Details Method for reducing viscosity increase in sooted diesel oils Method for reducing viscosity increase in sooted diesel oils

1997-12-02

1998-11-17

Howard, Jacqueline V.

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Nitrogen and heavy metal, or nitrogen and aluminum, in the...

508362, 508369, C10M13500, C10M13900

Patent

active

058376577

ABSTRACT:
The present invention is directed to a method for improving the performance of a sooted diesel oil and controlling soot induced viscosity increase by adding to a major amount of a diesel oil a minor amount of a composition comprising at least one compound having the formula Mo.sub.3 S.sub.k L.sub.n Q.sub.z and mixtures thereof wherein the L are independently selected ligands having organo groups with a sufficient number of carbon atoms to render the compound soluble or dispersible in the oil, n is from 1 to 4, k varies from 4 through 10, Q is selected from the group of neutral electron donating compounds such as water, amines, alcohols, phosphines, and ethers, and z ranges from 0 to 5 and includes nonstoichiometric values.

REFERENCES:
patent: 4392966 (1983-07-01), Schlict
patent: 4846983 (1989-07-01), Ward, Jr.
patent: 4978464 (1990-12-01), Coyle et al.

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