LIQUID HYDROCARBON FUELS CONTAINING HIGH MOLECULAR WEIGHT MANNICH BASES

• US 3,649,229 A
• Filed: 12/17/1969
• Issued: 03/14/1972
• Est. Priority Date: 12/17/1969
• Status: Expired due to Term

• Current Assignee: Ferdinand P. Otto
• Original Assignee: Ferdinand P. Otto
• Inventors: Otto, Ferdinand P.
• Primary Examiner(s): Wyman, Daniel E.
• Assistant Examiner(s): Shine, W. J.
• Application Number:
  US04/885,995
• Time in Patent Office: 818 Days
• Field of Search: 44/73 233/392
• US Class Current: 44/347
• CPC Class Codes: C10L 1/221 compounds of uncertain formula; reaction products where mixtures of compounds are obtained

Abstract

Reaction products obtained from high molecular weight alkylsubstituted hydroxyaromatic compounds, amines and aldehydes are detergency improvers for liquid hydrocarbon fuels.

Claims

2. The liquid hydrocarbon combustion fuel of claim 1 wherein the said condensation product comprises from 1 to about 200 pounds per thousand barrels of fuel.

3. The liquid hydrocarbon combustion fuel of claim 1 wherein the said condensation product comprises from 1 to about 25 pounds per thousand barrels of fuel.

4. The liquid hydrocarbon combustion fuel of claim 1 wherein the molecular weight of the alkyl substituent is from about 750 to about 1,200.

5. The liquid hydrocarbon combustion fuel of claim 1 wherein the alkyl-substituted hydroxyaromatic compound is an alkyl-substituted phenol.

6. The liquid hydrocarbon combustion fuel of claim 1 wherein said aldehyde is selected from the group consisting of formaldehyde and paraformaldehyde.

7. The liquid hydrocarbon combustion fuel of claim 1 wherein said amine is selected from the group consisting of polyalkylpolyamines, polyalkenylpolyamines, aromatic amines, carboxylic acid-substituted polyalkylpolyamines, and the succinimide formed from any one of these with an olefinic succinic acid or anhydride.

8. The liquid hydrocarbon combustion fuel of claim 1 wherein said amine is selected from the group consisting of dimethylamine, dimethylaminopropylamine, tetraethylenepentamine, N-acetyl-tetraethylenepentamine, diethylenetriamine and the monosuccinimide prepared from dodecenyl succinic anhydride and diethylenetriamine.

9. The liquid hydrocarbon combustion fuel of claim 1 wherein said alkyl-substituted hydroxyaromatic compound is selected from the group consisting of polypropyl phenol and polybutyl phenol.

10. The liquid hydrocarbon combustion fuel of claim 1 wherein said alkyl-substituted hydroxyaromatic compound is polypropyl phenol from polypropylene having a molecular weight of 825, said amine is diethylenetriamine, and said aldehyde is paraformaldehyde, and the said respective molar ratio is 1:

0.6;

2.