Polymeric-amine fuel and lubricant additive
AssigneePetrokleen, Ltd.
InventorsDonald E. Koehler, William J. Claffey
Life of this patent
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Abstract
The present invention relates to an improved method of synthesizing polyamines, the improvement comprising producing polyamines having an increased nitrogen content. It concerns the improved fuel additives thereby produced, and the resultant improved fuel composition which comprises an admixture of said fuel additive and a gasoline.
Claims17
A method of increasing the nitrogen concentration of a polymeric-amine fuel and lubricant additive comprising:
- (a) providing a reactive polymer which has been conditioned to react with an amine;
- (b) reacting the reactive polymer of step (a) with from about 0.01 to about 0.99 molar equivalent of a polyamine having only one reactive amine for a period of from about 0.5 to about 15.0 hours at a temperature of from about 75.degree. F. to about 410.degree. F. at a pressure of from about 0 to about 6 atmospheres to form a first reaction mass;
- (c) adding to said first reaction mass at least one additional polyamine having at least two primary amine moieties, in an amount equal to from about 0.01 to about 10.0 times the molar quantity of reactive polymer employed in step (b) to form a second reaction mass and reacting said second reaction mass for a period of from about 1 to about 15 hours at a temperature of from about 75.degree. F. to about 410.degree. F. at a pressure of from about 0 to about 6 atmospheres;
- (d) distilling off any unreacted polyamine at a distillation temperature of below about 400.degree. F.;
- and,
- (e) treating said second reaction mass to recover the polymeric-amine products.
A method of manufacturing a polymeric amine fuel or lubricant additive wherein said polymeric-amine fuel or lubricant additive is comprised of at least about 90% of a polymeric-amine having a maximum of one polymer chain per amine unit, the method comprising:
- (a) providing a reactive polymer which has been conditioned to react with an amine;
- (b) reacting the reactive polymer of step (a) with from about 0.01 to about 0.99 molar equivalent of a polyamine having only one reactive amine for a period of from about 0.5 to about 15.0 hours at a temperature of from about 75.degree. F. to about 410.degree. F. at a pressure of from about 0 to about 6 atmospheres to form a first reaction mass;
- (c) adding to said first reaction mass at least one additional polyamine having at least two primary amine moieties, in an amount equal to from about 0.01 to about 10.0 times the molar quantity of reactive polymer employed in step (b) to form a second reaction mass and reacting said second reaction mass for a period of from about 1 to about 15 hours at a temperature of from about 75.degree. F. to about 410.degree. F. at a pressure of from about 0 to about 6 atmospheres;
- (d) distilling off any unreacted polyamine at a distillation temperature of below about 400.degree. F.;
- and,
- (e) treating said second reaction mass to recover the polymeric-amine products.
A process for controlling cross linking and over reaction components produced during the manufacture of polymeric-amine fuel and lubricant additives said process comprising:
- (a) providing a reactive polymer which has been conditioned to react with an amine;
- (b) reacting the reactive polymer of step (a) with from about 0.01 to about 0.99 molar equivalent of a polyamine having only one reactive amine for a period of from about 0.5 to about 15.0 hours at a temperature of from about 75.degree. F. to about 410.degree. F. at a pressure of from about 0 to about 6 atmospheres to form a first reaction mass;
- (c) adding to said first reaction mass at least one additional polyamine having at least two primary amine moieties, in an amount equal to from about 0.01 to about 10.0 times the molar quantity of reactive polymer employed in step (b) to form a second reaction mass and reacting said second reaction mass for a period of from about 1 to about 15 hours at a temperature of from about 75.degree. F. to about 410.degree. F. at a pressure of from about 0 to about 6 atmospheres;
- (d) distilling off any unreacted polyamine at a distillation temperature of below about 400.degree. F.;
- and,
- (e) treating said second reaction mass to recover the polymeric-amine products.
Dependencies are inferred from the claim text.