IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0047902
(2011-03-15)
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등록번호 |
US-8758531
(2014-06-24)
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발명자
/ 주소 |
- Schneider, Stefan
- Hawkins, Tommy W.
- Ahmed, Yonis
- Rosander, Michael
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출원인 / 주소 |
- The United States of America as represented by the Secretary of the Air Force
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
11 |
초록
Provided is a fuel of catalytic metal-containing ionic liquid (MCIL) and an IL, to spur hypergolic ignition of such liquids upon contact with an oxidizer to define a hypergolic bipropellant.
대표청구항
▼
1. A hypergolic bipropellant comprising: a first ionic liquid;a second, metal-containing ionic liquid; andH2O2 operable as an oxidizer,wherein the second ionic liquid is configured to catalyze hypergolic ignition. 2. The hypergolic bipropellant of claim 1, wherein a cation of the first ionic liquid,
1. A hypergolic bipropellant comprising: a first ionic liquid;a second, metal-containing ionic liquid; andH2O2 operable as an oxidizer,wherein the second ionic liquid is configured to catalyze hypergolic ignition. 2. The hypergolic bipropellant of claim 1, wherein a cation of the first ionic liquid, the second ionic liquid, or both is selected from the group consisting of: where R1, is H, NH2, or a C1-C6 alkyl; R2 is H, NH2, or a C1-C6 alkyl; R3 is H, NH2, or a C1-C6 alkyl; and R4 is H, NH2, or a C1-C6 alkyl. 3. The hypergolic bipropellant of claim 1, wherein an anion of the first ionic liquid, the second ionic liquid, or both is selected from the group consisting of: where X is Cl, Br, BH4, NO3, CN, —CC—, —OMe or N3. 4. The hypergolic bipropellant of claim 1, wherein a weight percent of the H2O2 ranges from 70 weight percent to 100 weight percent. 5. The hypergolic bipropellant of claim 4, wherein the weight percent of the H2O2 ranges from 90 weight percent to 98 weight percent. 6. A method of preparing a hypergolic bipropellant, the method comprising, providing a mixture comprising a first ionic liquid and a second ionic liquid, wherein at least one of the first and second ionic liquids is a metal-containing ionic liquidproviding H2O2 as oxidizer. 7. The method of claim 6, wherein the second ionic liquid includes a metallate. 8. The method of claim 6, wherein a cation of the second ionic liquid is selected from the group consisting of: where each of R1, R2, R3, and R4 is separately selected from H, NH2, and a C1-C6 alkyl. 9. The method of claim 7, wherein the metallate is selected from the group consisting of: where X is Cl, Br, BH4, NO3, CN, —CC—, —OMe, or N3. 10. The method of claim 6, wherein a weight percent of the H2O2 ranges from 70 weight percent to 100 weight percent. 11. The method of claim 6, wherein the weight percentage of the H2O2 ranges from 90 weight percent to 98 weight percent. 12. The hypergolic bipropellant of claim 1, wherein a cation of the second ionic liquid is: where each of R1 and R2 is separately selected from H, NH2, or a C1-C6. 13. The hypergolic bipropellant of claim 1, wherein a metallate of the second ionic liquid is: where X is Cl, Br, BH4, NO3, CN, —CC—, —OMe, or N3. 14. The hypergolic bipropellant of claim 13, wherein a cation of the second ionic liquid is: where each of R1 and R2 is separately selected from H, NH2, or a C1-C6 alkyl. 15. The hypergolic bipropellant of claim 1, wherein a cation of the first ionic liquid is selected from the group consisting of: where each of R1, R2, R3, and R4 is separately selected from H, NH2, and a C1-C6 alkyl. 16. The hypergolic bipropellant of claim 1, wherein an anion of the first ionic liquid is selected from a group consisting of nitrates, perchlorates, dinitramides, azides, cyanides, dicyanamides, tricyanomethanides, and azolates. 17. The hypergolic bipropellant of claim 1, wherein the metal of the second ionic liquid is a transition metal. 18. The hypergolic bipropellant of claim 1, wherein cations of each of the first and second ionic liquids is a substituted triazolium cation, a metallate of the second ionic liquid is a tetrahedrally coordinated Fe(III) anion, and an anion of the first ionic liquid is an azolate anion. 19. The hypergolic bipropellant of claim 1, wherein cations of the first and second ionic liquids are selected from the group consisting of an open-chain substituted ammonium, a substituted pyrrolidinium, a substituted piperidinium, a substituted triazolium, a substituted tetrazolium, and a substituted imidazolium.
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