Methods of making explosive compositions, and the resulting products

• US 5,569,875 A
• Filed: 06/16/1994
• Issued: 10/29/1996
• Est. Priority Date: 03/16/1992
• Status: Expired due to Term

• Current Assignee: Legend Products Corporation
• Original Assignee: Legend Products Corporation
• Inventors: Fey, Warren O.
• Primary Examiner(s): Miller, Edward A.
• Application Number:
  US08/260,717
• Time in Patent Office: 866 Days
• Field of Search: 149/83, 149/61
• US Class Current: 149/61
• CPC Class Codes: C06B 31/02 the salt being an alkali metal or an alkaline earth metal nitrate
• CPC Class Codes: C06B 31/28 the salt being ammonium nitrate

Abstract

An improved fuel composition suitable for use in explosive compositions is obtained by forming a reaction product of a transition metal or transition metal compound, preferably iron or iron oxide, with ascorbic or erythorbic acid. The improved fuel composition is combined in admixture with an inorganic oxidizing agent to produce an improved explosive composition. When the improved fuel composition is combined in admixture with potassium nitrate, an improved explosive composition suitable for use as a gunpowder having enhanced performance characteristics is obtained. Methods for making the fuel composition and the explosive composition are also disclosed.

Claims

1. A method of making explosive compositions comprising the steps of:

mixing in aqueous solution an organic acid and a transition metal containing material which will react with said organic acids in said aqueous solution, said transition metal containing material selected from the group consisting of transition metals, transition metal compounds, and mixtures thereof to create a transition metal and organic acid reaction product salt;

drying the reaction product salt; and

then

mixing the dry reaction product salt with an inorganic oxidizer to produce explosive compositions.

2. A method of making explosive compositions as defined in claim 1 comprising the additional step of forming granules of the mixture of reaction product and the inorganic oxidizer mixture.

3. A method of making explosive compositions as defined in claim 1 wherein the inorganic oxidizer is selected from the group consisting of potassium nitrate, ammonium nitrate and mixtures thereof.

4. The method of making explosive compositions as defined in claim 3 wherein the organic acid is selected from the group consisting of ascorbic acid and erythorbic acid.

5. The method of making explosive compositions as defined in claim 4 wherein the material selected from the group consisting of transition metals, transition metal compounds and mixtures thereof are further selected from the iron containing material group consisting of iron, iron oxides, iron hydroxides, iron alloys, and iron salts.

6. The method of making explosive compositions as defined in claim 5 wherein the material selected from the iron containing material group includes an iron oxide.

7. The method of making explosive compositions as defined in claim 6 wherein the material selected is iron oxide, and wherein the organic acid is ascorbic acid.

8. A method of making explosive compositions as defined in claim 7 wherein the inorganic oxidizer is potassium nitrate.

9. A method of making explosive compositions as defined in claim 8 wherein the reaction product and the potassium nitrate are present in a weight ratio of about 35:

65.

10. A method of making explosive compositions as defined in claim 1 wherein the inorganic oxidizer is a nitrate-containing inorganic oxidizer selected from the group consisting of potassium nitrate, ammonium nitrate and mixtures thereof;

and the dry reaction product and the inorganic oxidizer are present in a ratio of from about 20;

80 to about 50;

50 by weight.

11. A method of making explosive compositions as defined in claim 10 wherein the reaction product and the inorganic oxidizer are ground separately before they mixed together.

12. A method of making explosive compositions as defined in claim 11 which includes a granule forming step including the steps of mixing water with the reaction product and inorganic oxidizer mixture, and then drying the wet reaction product and inorganic oxidizer mixture.

13. The explosive compositions made by the method of claim 12.

14. The explosive compositions made by the method of claim 1.

15. A method of making explosive compositions comprising the steps of:

mixing in an aqueous solution an organic acid selected from the group consisting of ascorbic acid and erythorbic acid and an iron containing material which will react with said organic acid in such an aqueous solution, said iron containing materials selected from the group consisting of iron, iron oxides, iron hydroxides, iron alloys, and iron salts, and mixtures thereof to create an iron and organic acid reaction product salt;

drying the iron and organic acid reaction product salt; and

then

mixing the dry reaction product salt with an inorganic oxidizer selected from the group consisting of potassium nitrate, ammonium nitrate and mixtures thereof to produce explosive compositions.

16. The method of making explosive compositions as defined in claim 15 wherein the iron containing material includes an iron oxide, and wherein the organic acid is ascorbic acid.

17. The explosive compositions made by the method of claim 16.