Catalyst system for rendering organic propellants hypergolic with hydrogen peroxide
First Claim
Patent Images
1. A method of rendering an organic fuel hypergolic with hydrogen peroxide, comprising the steps of:
- providing a polar or non-polar organic fuel selected from the group consisting of kerosene, methanol, ethanol, isopropanol, octane, iso-octane, decane and mixtures thereof; and
contacting said organic fuel with a hypergolicity-imparting catalyst, thereby forming a catalyst-fuel mixture, wherein said hypergolicity-imparting catalyst comprises a complex of an alkyl-substituted diamine or alkyl-substituted triamine with a metal salt of an aliphatic carboxylic acid, wherein said metals are selected from the group consisting of manganese, cobalt, copper, silver, and combinations thereof and said metal salts of aliphatic carboxylic acids are selected from the group consisting of acetates, propionates, butyrates, and combinations thereof, wherein the catalyst-fuel mixture is hypergolic with rocket grade hydrogen peroxide.
1 Assignment
0 Petitions
Accused Products
Abstract
Novel catalysts capable of rendering both polar and non-polar organic fuels hypergolic with rocket-grade hydrogen peroxide are disclosed. These catalysts are complexes formed by reacting alkyl-substituted diamines or triamines, with metal salts of an aliphatic carboxylic acid or metal 1,3 dione chelates. In addition, the use of various acetylenic compounds as stability enhancing additives and/or promoters is described.
21 Citations
14 Claims
-
1. A method of rendering an organic fuel hypergolic with hydrogen peroxide, comprising the steps of:
-
providing a polar or non-polar organic fuel selected from the group consisting of kerosene, methanol, ethanol, isopropanol, octane, iso-octane, decane and mixtures thereof; and
contacting said organic fuel with a hypergolicity-imparting catalyst, thereby forming a catalyst-fuel mixture, wherein said hypergolicity-imparting catalyst comprises a complex of an alkyl-substituted diamine or alkyl-substituted triamine with a metal salt of an aliphatic carboxylic acid, wherein said metals are selected from the group consisting of manganese, cobalt, copper, silver, and combinations thereof and said metal salts of aliphatic carboxylic acids are selected from the group consisting of acetates, propionates, butyrates, and combinations thereof, wherein the catalyst-fuel mixture is hypergolic with rocket grade hydrogen peroxide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method of rendering an organic fuel hypergolic with hydrogen peroxide, comprising the steps of:
-
providing a polar or non-polar organic fuel selected from the group consisting of kerosene, methanol, ethanol, isopropanol, octane, iso-octane, decane and mixtures thereof; and
contacting said organic fuel with a hypergolicity-imparting catalyst, thereby forming a catalyst-fuel mixture, wherein said hypergolicity-imparting catalyst comprises a complex of an amine selected from the group consisting of alkyl-substituted diamines and alkyl-substituted triamines with a metal salt of an aliphatic carboxylic acid, wherein said metals are selected from the group consisting of manganese, cobalt, copper, silver, and combinations thereof and said metal salts of aliphatic carboxylic acids are selected from the group consisting of acetates, propionates, butyrates, and combinations thereof, the catalyst-fuel mixture comprising;
from about 50 to 97 weight % organic fuel;
from about 1 to 8 weight % metal salt of an aliphatic acid; and
from about 1 to 20 weight % amine, wherein the catalyst-fuel mixture is hypergolic with rocket grade hydrogen peroxide. - View Dependent Claims (14)
-
Specification