Claims
- 1. A method of inhibiting oxidation to reduce precipitation and sludge formation during storage and transportation of diesel fuel consisting essentially of adding to said diesel fuel a rare earth organometallic compound of the formula: ##STR3## wherein M is one or more rare earth elements selected from the group consisting of yttrium, lanthanum, praseodymium, neodymium, samarium, europiums, gadolinium, terbium, dysprosium, holmium, erbium, promethium, thulium, ytterbium and lutetium and R is a hydrocarbon group having from 3 to 25 carbon atoms, thereby substantially inhibiting said oxidation of said diesel fuel.
- 2. A method according to claim 1 consisting essentially of adding a compound to said diesel fuel wherein R is a straight or branched alkyl group, a heterocyclic group, an alicyclic group or an aromatic group.
- 3. The method of claim 2 wherein R is a straight alkyl group.
- 4. The method of claim 2 wherein R is a branched alkyl group.
- 5. The method of claim 2 wherein R is a heterocyclic group.
- 6. The method of claim 2 wherein R is an alicyclic group.
- 7. The method of claim 2 wherein R is an aromatic group.
- 8. A method according to claim 1 consisting essentially of adding a compound to diesel fuel wherein said compound is an octoate, a naphthenate, a neodecanate, a butyrate or an hydroxy stearate.
- 9. A method according to claim 1 consisting essentially of adding to diesel fuel a compound of the formula: ##STR4##
- 10. A method according to claim 1 wherein said organometallic compound is added to said diesel fuel is a diesel fuel-soluble concentrate in an amount such that the concentration of rare earth element in said diesel fuel is between about 5 and about 500 parts per million.
- 11. A method according to claim 10 wherein said concentration is between about 5 and about 150 parts per million.
- 12. A method according to claim 1 which substantially reduces precipitation in said diesel fuel under storage conditions equivalent to holding the diesel fuel at a temperature of 100.degree. C. in the presence of oxygen for at least 16 hours.
- 13. A method of claim 1 wherein rare earth elements are selected from the group consisting of yttrium, lanthanum, praseodymium, neodymium, samarium, and europium.
Parent Case Info
This is a continuation of co-pending application Ser. No. 909,782, filed on Sept. 19, 1986, now abandoned.
US Referenced Citations (17)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1571210 |
Jul 1980 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
909782 |
Sep 1986 |
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