Gas generating mixture containing copper diammine dinitrate

• US 5,663,524 A
• Filed: 11/24/1995
• Issued: 09/02/1997
• Est. Priority Date: 11/26/1994
• Status: Expired due to Fees

• Current Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Original Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Inventors: Bucerius, Klaus Martin, Schmid, Helmut, Engel, Walter, Eisenreich, Norbert
• Primary Examiner(s): Miller, Edward A.
• Application Number:
  US08/562,602
• Time in Patent Office: 648 Days
• Field of Search: 149/45, 149/36, 149/92
• US Class Current: 149/45
• CPC Class Codes: C06B 31/00 Compositions containing an inorganic nitrogen-oxygen salt
• CPC Class Codes: C06D 5/06 by reaction of two or more solids

Abstract

A gas generating mixture comprises a high nitrogen and low carbon fuel fromhe group nitroguanidine (NIGU), triaminoguanidine nitrate (TAGN), diguanidinium-5,5'"'"'-azotetrazolate (GZT) and 3-nitro-1,2-3-triazol-5-one (NTO), as well as copper diammine dinitrate Cu(NH₃)₂ (NO₃)₂ as the oxidizer and V₂ O₅ /MoO₃ mixed oxides and/or oxide mixtures as the catalyst.

Claims

1. Gas generating mixture comprising a high nitrogen and low carbon fuel selected from the group consisting of nitroguanidine (NIGU), triaminoguanidine nitrate (TAGN), diguanidinium-5,5'"'"'-azotetrazolate (GZT) and 3-nitro-1,2,3,-triazol-5-one (NTO), catalyst, oxidizer and optionally coolant, wherein the oxidizer is copper diammine dinitrate Cu(NH₃)₂ (NO₃)₂ and the catalyst comprises at least one of V₂ O₅ /MoO₃ mixed oxides and oxide mixtures.

2. Mixture according to claim 1, wherein the catalyst is an oxide mixture with the empirical formula V₆ Mo₁₅ O₆₀.

3. Mixture according to claim 1 wherein the catalyst contains fractions of the thermodynamically unstable V₂ O₄ phase.

4. Mixture according to claim 1, wherein the catalyst also contains TiO₂.

5. Mixture according to claim 1, wherein the catalyst has an average particle size of<

25 μ

m.

6. Mixture according to claim 1, wherein said mixture comprises a mixture of GZT, Cu(NH₃)₂ (NO₃)₂ with an equilibrated oxygen balance and a catalyst content in the mixture of up to 30 wt. %.

7. Mixture according to claim 6, wherein GZT and Cu(NH₃)₂ (NO₃)₂ are present in a wt. % ratio of 21.6:

78.4.

8. Mixture according to claim 1, wherein the coolant wholly or partly comprises Fe₂ O₃.