US1775063A - Aluminum ophobite - Google Patents
Aluminum ophobite Download PDFInfo
- Publication number
- US1775063A US1775063A US1775063DA US1775063A US 1775063 A US1775063 A US 1775063A US 1775063D A US1775063D A US 1775063DA US 1775063 A US1775063 A US 1775063A
- Authority
- US
- United States
- Prior art keywords
- aluminum
- perchlorate
- mixture
- oil
- ophorite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title description 56
- 229910052782 aluminium Inorganic materials 0.000 title description 48
- VLTRZXGMWDSKGL-UHFFFAOYSA-M Perchlorate Chemical compound [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 36
- 239000000203 mixture Substances 0.000 description 34
- 239000003921 oil Substances 0.000 description 22
- 239000002360 explosive Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 18
- YLMGFJXSLBMXHK-UHFFFAOYSA-M Potassium perchlorate Chemical compound [K+].[O-]Cl(=O)(=O)=O YLMGFJXSLBMXHK-UHFFFAOYSA-M 0.000 description 16
- 229960002832 potassium perchlorate Drugs 0.000 description 16
- 229910001487 potassium perchlorate Inorganic materials 0.000 description 16
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 14
- 239000011777 magnesium Substances 0.000 description 14
- 229910052749 magnesium Inorganic materials 0.000 description 14
- 239000011888 foil Substances 0.000 description 10
- 239000002480 mineral oil Substances 0.000 description 8
- 235000010446 mineral oil Nutrition 0.000 description 8
- 229910052783 alkali metal Inorganic materials 0.000 description 6
- 150000001340 alkali metals Chemical class 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N al2o3 Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 241000212342 Sium Species 0.000 description 2
- QFIGQGUHYKRFAI-UHFFFAOYSA-K aluminum;trichlorate Chemical compound [Al+3].[O-]Cl(=O)=O.[O-]Cl(=O)=O.[O-]Cl(=O)=O QFIGQGUHYKRFAI-UHFFFAOYSA-K 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000010301 surface-oxidation reaction Methods 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/06—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being an inorganic oxygen-halogen salt
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S149/00—Explosive and thermic compositions or charges
- Y10S149/11—Particle size of a component
- Y10S149/114—Inorganic fuel
Definitions
- ophorite is applied to a mechanimay be substituted, in whole or in part, for
- a specific example of preparing my com sesses greater effectiveness, power and staposition is as follows:
- a further object of this invention is the in excess of 2% of oil is added to the potasproduction of an ophorite wherein metallic sium perchlorate, preferably in a; pure and aluminum is substituted for the magnesium dry condition and of a fineness of at least metal of the prior compositions of this charmesh.
- the components are used approxacter.
- Aluminum ophorite possesses the followplete oxidation of the aluminum metal, the ing-advantages over magnesium ophorite: theoretical proportions by weight, in which 1. Aluminum metal is more available and the aluminum and perchlorate are used, becan be produced more cheaply than metallic mg 34.2% aluminum and 65.8% potassiummagnesium. perchlorate, in which the oil is present w th 2.
- magnesium ophorite the magnesium the aluminum not in excess of 2%, which is employed as coarse cuttings and this afreactaccording to the following equation: fords greater possibil ty of segregatlon of 8A1+3KC1O4:4A12O3+3KO1 the magneslum with consequent failure of the mixture. If finely-divided magnesium The components are mixed separately, and 99 be used to counteractthis tendency toward are then placed in atumble barrel or glass segregation, the resulting mixture becomes bottle wherein they may be shaken and en' too sensitive to handle and the rate of explotirely mixed without heat or frlction. sion is too rapid to ignite the theremite.
- the present invention is not limited'to the aluminum in the ophorite is employed in a specific details set'forth in the foregoing exfinely divided condition. amples which should be construed as illus- -3.
- Aluminum ophorite is more stable in trative'and not byway of limitation, and in storage than'magnesium ophorite. There is view of the numerous modifications which less tendency for surface oxidation in the may be effected therein without departing former than in the latter; I w from the-spirit and scope of this invention,
- An explosive 'material comprising a 5 mixture of finely ground metallic aluminum foil ground in oil, said oil constituting not in excess of two per cent of the mixture and a perchlorate of an alkali metal.
- An explosive material comprising a m mixture of metallic aluminum foil finely ground in a mineral oil and potassium perchlorate, said oil constituting not in excess of 2% of the mixture.
- a process for preparing an explosive material comprising mixing finely ground metallic aluminum foil ground in a mineral oil said oil not constituting in excess of two per cent of the mixture and a perchlorate of an alkali metal in proportion for complete oxidization of the aluminum to aluminum oxid by the perchlorate.
- a process for preparing an explosive material comprising mixing finely ground metallic aluminum foil ground in a mineral oil said oil not constituting in excess of two per cent of the mixture and potassium perchlorate in proportions for complete oxidization of the aluminum to aluminum oxid by the potassium perchlorate.
- An explosive material comprising a mixture of finely divided metallic aluminum ground in oil, said oil constituting not in excess of two per cent of the mixture and potassium-perchlorate, said aluminum being ground so that at least 80% shall be of 100- I. 200 mesh and the potassium-perchlorate of a fineness of at least 150 mesh.
- Aprocess for preparing an explosive material comprising mixing finely ground 40 metallic aluminum foil, ground in a mineral oil, and finely ground potassium-perchlorate in proportions of approximately 34.2% of aluminum and 65.8% of potassium perchlorate, said mixture not containing in excess of 2% of oil.
- An explosive material comprising a. mixture of flake aluminum and a perchlorate of an alkali metal.
- An explosive material comprising a mixture of flake aluminum andpotassiumperchlorate.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Description
Patented Sept. 2, 1930 p i i UNITED STATES PWTATENT OFFICE DONALD B. BRAlDNER, F PHILADELPI EIA, PENNSYLVANIA ALUMINUM ornonrrn ,No Drawing. Application filed February 21, 1925.= Serial No. 10,982.-
(GRANTEIi UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1883', 22 STAR L, 625) The invention described herein may be used 4. Aluminum ophorite gives more heat per by the Government, or any of its oflicers or weight of metal, and consequently a smaller employees, in prosecution of work for the charge is required for a given result. Government, or by any other person in the In carrying out my invention I incorpo- United States, Without payment of royalty rate finely-divided metallic aluminum with a 55 thereon. finely-divided oxidizing agent, such as a This invention .relates to a new explosive perchlorate. I prefer potassium perchlocomposition and. more specifically to alumirate for this purpose, although other perchlo-. num ophorite. T rates, such as that of sodium .or ammonium I The term ophorite is applied to a mechanimay be substituted, in whole or in part, for
cal mixture of metallic'magnesium and a the potassium perchlorate. I perchlorate, which on ignition burns rapid- I find that the source and quality of the 1y, yielding intense heat and a suflicient aluminum metal is an important factor in amount of gas for development of highpresthe final properties of the mixture. I have 5 sures when the material is confined. This found that flake aluminum (aluminum foilmaterial is used in connection with military ground in oil) is most satisfactory for my explosives for the fragmentation of shells purpose. Also, the fineness of the perchloand the ignition of amaterial, such as therrate as well as its freedom from impurities mite. and moisture content are important factors Among the objects of this invention is the in the effectiveness of 'the'product. production of an ophorite mixture which pos- A specific example of preparing my com sesses greater effectiveness, power and staposition is as follows: The aluminum metal, bility and which can-be produced from mawhich should be preferably substantially terials of greater availability than the ophopure and ground so that about at least rite previously made.- shall be of -200 mesh and containing not 75 A further object of this invention is the in excess of 2% of oil is added to the potasproduction of an ophorite wherein metallic sium perchlorate, preferably in a; pure and aluminum is substituted for the magnesium dry condition and of a fineness of at least metal of the prior compositions of this charmesh. The components are used approxacter. imately in proportions which will give com- 80 Aluminum ophorite possesses the followplete oxidation of the aluminum metal, the ing-advantages over magnesium ophorite: theoretical proportions by weight, in which 1. Aluminum metal is more available and the aluminum and perchlorate are used, becan be produced more cheaply than metallic mg 34.2% aluminum and 65.8% potassiummagnesium. perchlorate, in which the oil is present w th 2. In magnesium ophorite, the magnesium the aluminum not in excess of 2%, which is employed as coarse cuttings and this afreactaccording to the following equation: fords greater possibil ty of segregatlon of 8A1+3KC1O4:4A12O3+3KO1 the magneslum with consequent failure of the mixture. If finely-divided magnesium The components are mixed separately, and 99 be used to counteractthis tendency toward are then placed in atumble barrel or glass segregation, the resulting mixture becomes bottle wherein they may be shaken and en' too sensitive to handle and the rate of explotirely mixed without heat or frlction. sion is too rapid to ignite the theremite. The The present invention is not limited'to the aluminum in the ophorite is employed in a specific details set'forth in the foregoing exfinely divided condition. amples which should be construed as illus- -3. Aluminum ophorite is more stable in trative'and not byway of limitation, and in storage than'magnesium ophorite. There is view of the numerous modifications which less tendency for surface oxidation in the may be effected therein without departing former than in the latter; I w from the-spirit and scope of this invention,
it is desired that only such limitations be imposed as are indicated in the appended claims.
I claim as my invention:
1. An explosive 'material comprising a 5 mixture of finely ground metallic aluminum foil ground in oil, said oil constituting not in excess of two per cent of the mixture and a perchlorate of an alkali metal.
2. An explosive material comprising a m mixture of metallic aluminum foil finely ground in a mineral oil and potassium perchlorate, said oil constituting not in excess of 2% of the mixture.
a 3. A process for preparing an explosive material comprising mixing finely ground metallic aluminum foil ground in a mineral oil said oil not constituting in excess of two per cent of the mixture and a perchlorate of an alkali metal in proportion for complete oxidization of the aluminum to aluminum oxid by the perchlorate.
4. A process for preparing an explosive material comprising mixing finely ground metallic aluminum foil ground in a mineral oil said oil not constituting in excess of two per cent of the mixture and potassium perchlorate in proportions for complete oxidization of the aluminum to aluminum oxid by the potassium perchlorate.
so 5. An explosive material comprising a mixture of finely divided metallic aluminum ground in oil, said oil constituting not in excess of two per cent of the mixture and potassium-perchlorate, said aluminum being ground so that at least 80% shall be of 100- I. 200 mesh and the potassium-perchlorate of a fineness of at least 150 mesh.
6. Aprocess for preparing an explosive material comprising mixing finely ground 40 metallic aluminum foil, ground in a mineral oil, and finely ground potassium-perchlorate in proportions of approximately 34.2% of aluminum and 65.8% of potassium perchlorate, said mixture not containing in excess of 2% of oil.
' 7 An explosive material. comprising a. mixture of flake aluminum and a perchlorate of an alkali metal.
8. An explosive material comprising a mixture of flake aluminum andpotassiumperchlorate.
-DONALD: B. BRADNER.
Publications (1)
Publication Number | Publication Date |
---|---|
US1775063A true US1775063A (en) | 1930-09-02 |
Family
ID=3420352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US1775063D Expired - Lifetime US1775063A (en) | Aluminum ophobite |
Country Status (1)
Country | Link |
---|---|
US (1) | US1775063A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3019687A (en) * | 1952-09-11 | 1962-02-06 | Aerojet General Co | Method of forming a solid propellant |
-
0
- US US1775063D patent/US1775063A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3019687A (en) * | 1952-09-11 | 1962-02-06 | Aerojet General Co | Method of forming a solid propellant |
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