US3546034A - Ammonium nitrate-nitromethane type blasting agent containing urea as a crystallization inhibitor - Google Patents
Ammonium nitrate-nitromethane type blasting agent containing urea as a crystallization inhibitor Download PDFInfo
- Publication number
- US3546034A US3546034A US738100A US3546034DA US3546034A US 3546034 A US3546034 A US 3546034A US 738100 A US738100 A US 738100A US 3546034D A US3546034D A US 3546034DA US 3546034 A US3546034 A US 3546034A
- Authority
- US
- United States
- Prior art keywords
- nitromethane
- ammonium nitrate
- blasting agent
- urea
- agent containing
- 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
- 238000005422 blasting Methods 0.000 title description 19
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title description 14
- 239000004202 carbamide Substances 0.000 title description 14
- 238000002425 crystallisation Methods 0.000 title description 13
- 230000008025 crystallization Effects 0.000 title description 13
- 239000003795 chemical substances by application Substances 0.000 title description 12
- JJSIUWGDYPNYEL-UHFFFAOYSA-O [N+](=O)([O-])C.[N+](=O)([O-])[O-].[NH4+] Chemical compound [N+](=O)([O-])C.[N+](=O)([O-])[O-].[NH4+] JJSIUWGDYPNYEL-UHFFFAOYSA-O 0.000 title description 4
- 239000003112 inhibitor Substances 0.000 title description 3
- 239000002002 slurry Substances 0.000 description 22
- 239000000203 mixture Substances 0.000 description 16
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 12
- 239000003349 gelling agent Substances 0.000 description 11
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- XTFIVUDBNACUBN-UHFFFAOYSA-N 1,3,5-trinitro-1,3,5-triazinane Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)C1 XTFIVUDBNACUBN-UHFFFAOYSA-N 0.000 description 4
- OLQJQHSAWMFDJE-UHFFFAOYSA-N 2-(hydroxymethyl)-2-nitropropane-1,3-diol Chemical group OCC(CO)(CO)[N+]([O-])=O OLQJQHSAWMFDJE-UHFFFAOYSA-N 0.000 description 4
- 239000000020 Nitrocellulose Substances 0.000 description 4
- 229920001220 nitrocellulos Polymers 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- AGUIVNYEYSCPNI-UHFFFAOYSA-N N-methyl-N-picrylnitramine Chemical group [O-][N+](=O)N(C)C1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O AGUIVNYEYSCPNI-UHFFFAOYSA-N 0.000 description 2
- TZRXHJWUDPFEEY-UHFFFAOYSA-N Pentaerythritol Tetranitrate Chemical compound [O-][N+](=O)OCC(CO[N+]([O-])=O)(CO[N+]([O-])=O)CO[N+]([O-])=O TZRXHJWUDPFEEY-UHFFFAOYSA-N 0.000 description 2
- 239000007983 Tris buffer Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- HZTVIZREFBBQMG-UHFFFAOYSA-N 2-methyl-1,3,5-trinitrobenzene;[3-nitrooxy-2,2-bis(nitrooxymethyl)propyl] nitrate Chemical compound CC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O.[O-][N+](=O)OCC(CO[N+]([O-])=O)(CO[N+]([O-])=O)CO[N+]([O-])=O HZTVIZREFBBQMG-UHFFFAOYSA-N 0.000 description 1
- 240000004507 Abelmoschus esculentus Species 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 240000008886 Ceratonia siliqua Species 0.000 description 1
- 235000013912 Ceratonia siliqua Nutrition 0.000 description 1
- 244000303965 Cyamopsis psoralioides Species 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- 239000000026 Pentaerythritol tetranitrate Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 235000010985 glycerol esters of wood rosin Nutrition 0.000 description 1
- 239000000665 guar gum Substances 0.000 description 1
- 229960002154 guar gum Drugs 0.000 description 1
- 235000010417 guar gum Nutrition 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910001959 inorganic nitrate Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- -1 microballoons Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 229960004321 pentaerithrityl tetranitrate Drugs 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B47/00—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase
- C06B47/14—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase comprising a solid component and an aqueous phase
Definitions
- This invention relates to slurry type blasting agent compositions. In a particular aspect, it relates to blasting agent compositions resistant to low temperature crystallization.
- Blasting slurries of this general type have been used in large volume but they have suffered from the disadvantage that, When formulated in the lower water concentrations, the ammonium nitrate tends to crystallize in cold weather. As a result segregation and low sensitivity may occur, the slurry may not fill the hole properly and may even set up to a hard mass. Since blasting operations can otherwise be conducted at relatively low temperatures, it is desirable to employ a slurry which is formulated with a minimum of water, yet resists crystallization.
- compositions are obtained which are resistant to crystallization at below-freezing temperatures. These compositions do not set up to a solid mass, nor segregate nor undergo phase separation under most of the climatic conditions encountered during blasting operations.
- the present invention provides a method of inhibiting crystallization of ammonium nitrate-nitromethane slurrytype blasting agents to temperatures as low as about l214 F.
- United States Patent Urea is added in a proportion of about 47% by weight of the slurry, and is sufiicient to inhibit crystallization at low temperatures.
- 5% urea and 20% nitromethane permit ammonium nitrate concentrations of up to 66% by weight with only 5% water.
- Microballoons are added to the formulation to sensitize the nitromethane.
- the nitromethane can be used in a proportion of 20% to 30% by weight of the slurry. When preferred, up to one half of the nitromethane can be replaced with tris-(hydroxymethyl)nitromethane.
- ammonium nitrate suitable for use in the practice of this invention can be any grade which is generally useful in blasting agent slurries. This includes the ordinary commercial grade.
- the ammonium nitrate is uncoated, i.e. it is free from the coating generally applied to fertilizer grade material to reduce its hygroscopicity.
- the urea suitable for the practice of this invention can be any grade of commerce, and generally the lowest in cost is preferred.
- the grade used in fertilizer compositions is a preferred grade.
- the urea is present to the extent of from about 1% to about 7% by weight, preferably 4% to 6%, based on the weight of the total composition.
- TN nitromethane and tris(hydroxymethyl)nitro-methane
- the gelling agent used may be any of those materials, or a mixture thereof, which are capable of setting up the aqueous mixture in a gel-like consistency or in the form of a relatively thick cohesive paste as is known in the art.
- the gelling agent can be One of the well-known gums such as guar, okra, or locust bean, or it can be any of the synthetics known to the art. It may be supplemented with other gelling agents or thickeners such as Wood flour, cellulose ester gum and the like.
- a mixture of two or more gelling agents or thickeners is used in an amount sufficient to impart the desired consistency to the slurry.
- the preferred consistency maintains all components, including solid materials, uniformly distributed in the slurry over an extended period of time.
- the final consistency is preferably one which gives a cohesive, but pourable, mass.
- the effectiveness of the gelling agent varies greatly and it is within the skill of one familiar with their performance characteristics to use an appropriate amount consistent with the amount of Water incorporated in the wet blasting agent.
- additives such as aluminum flakes or powder, microballoons, or zinc oxide can be incorporated as is 'known in the art.
- compositions of the invention are insensitive to cletonating action of a No. 8 commercial blasting cap, but are detonatable by conventional booster charges of PETN (pentaerythritol tetranitrate), RDX (cyclotrimethylenetrinitramine), Pentolite (PETN- TNT, 50/50), tetryl, Composition B (RDXTNT 60/40), gelatin dynamites and the like.
- PETN penentaerythritol tetranitrate
- RDX cyclotrimethylenetrinitramine
- Pentolite PETN- TNT, 50/50
- tetryl Composition B (RDXTNT 60/40)
- gelatin dynamites gelatin dynamites and the like.
- velocity was determined using schedule 40 steel pipe of the size shown.
- a method of inhibiting crystallization of a slurrytype blasting agent at lOW temperatures said blasting agent consisting essentially of ammonium nitrate, sensitized nitromethane, water, and gelling agent, consisting of incorporating in said slurry, urea in a proportion of about 4 to 7% by weight of the slurry.
Description
3,546,034 AMMONIUM NITRATE-NITROMETHANE TYPE BLASTING AGENT CONTAINING UREA AS A CRYSTALLIZATION INHIBITOR James W. Francis, Marion, Ill., assignor to Commercial Solvents Corporation, New York, N.Y., a corporation of Maryland No Drawing. Filed June 19, 1968, Ser. No. 738,100
Int. Cl. C06b 1/04 US. Cl. 149-47 2 Claims ABSTRACT OF THE DISCLOSURE Crystallization-resistant blasting slurries of the ammonium nitrate-nitromethane type having a urea as the crystallization inhibitor.
BACKGROUND OF THE INVENTION This invention relates to slurry type blasting agent compositions. In a particular aspect, it relates to blasting agent compositions resistant to low temperature crystallization.
Aqueous blasting slurry compositions consisting primarily of inorganic nitrate, a sensitizer and gelling agent, plus various additives in small amount are well known in the explosives industry. They have a high density and good cohesive properties and can be charged into wet bore holes without undue risk of dilution. Slurries using 340% of a nitroparafi'ln as the sensitizer are disclosed in US. Pat. 3,356,544.
Blasting slurries of this general type have been used in large volume but they have suffered from the disadvantage that, When formulated in the lower water concentrations, the ammonium nitrate tends to crystallize in cold weather. As a result segregation and low sensitivity may occur, the slurry may not fill the hole properly and may even set up to a hard mass. Since blasting operations can otherwise be conducted at relatively low temperatures, it is desirable to employ a slurry which is formulated with a minimum of water, yet resists crystallization.
This problem with respect to ammonium nitrate slurries formulated with coarse TNT grains as the sensitizer was resolved by Cook, US. Pat. 2,930,685, by using either sodium nitrate or urea in an amount of 1-25% to lower the melting point of the slurry.
SUMMARY OF THE INVENTION It is an object of this invention to provide a slurrytype blasting agent composition.
It is another object to provide an ammonium nitratenitromethane blasting agent composition resistant to crystallization at low temperatures.
Other objects of this invention will be obvious to those skilled in the art.
It has now been discovered that, by incorporating urea into slurry-type blasting agents formulated with ammonium nitrate, nitromethane as the sensitizer, a gelling agent, and Water, compositions are obtained which are resistant to crystallization at below-freezing temperatures. These compositions do not set up to a solid mass, nor segregate nor undergo phase separation under most of the climatic conditions encountered during blasting operations.
DETAILED DESCRIPTION The present invention provides a method of inhibiting crystallization of ammonium nitrate-nitromethane slurrytype blasting agents to temperatures as low as about l214 F.
United States Patent Urea is added in a proportion of about 47% by weight of the slurry, and is sufiicient to inhibit crystallization at low temperatures. For example the use of 5% urea and 20% nitromethane permit ammonium nitrate concentrations of up to 66% by weight with only 5% water. Microballoons are added to the formulation to sensitize the nitromethane. The nitromethane can be used in a proportion of 20% to 30% by weight of the slurry. When preferred, up to one half of the nitromethane can be replaced with tris-(hydroxymethyl)nitromethane.
The ammonium nitrate suitable for use in the practice of this invention can be any grade which is generally useful in blasting agent slurries. This includes the ordinary commercial grade. Preferably the ammonium nitrate is uncoated, i.e. it is free from the coating generally applied to fertilizer grade material to reduce its hygroscopicity.
The urea suitable for the practice of this invention can be any grade of commerce, and generally the lowest in cost is preferred. The grade used in fertilizer compositions is a preferred grade. Generally, the urea is present to the extent of from about 1% to about 7% by weight, preferably 4% to 6%, based on the weight of the total composition.
The nitromethane and tris(hydroxymethyl)nitro-methane (TN) useful as sensitizers in the practice of this invention are common articles of commerce and the ordinary commercial grades are suitable. TN is available as a 50% aqueous solution, and this form is perferred. The water content of the slurry is adjusted accordingly.
The gelling agent used may be any of those materials, or a mixture thereof, which are capable of setting up the aqueous mixture in a gel-like consistency or in the form of a relatively thick cohesive paste as is known in the art. The gelling agent can be One of the well-known gums such as guar, okra, or locust bean, or it can be any of the synthetics known to the art. It may be supplemented with other gelling agents or thickeners such as Wood flour, cellulose ester gum and the like. Preferably, a mixture of two or more gelling agents or thickeners is used in an amount sufficient to impart the desired consistency to the slurry. The preferred consistency maintains all components, including solid materials, uniformly distributed in the slurry over an extended period of time.
The final consistency is preferably one which gives a cohesive, but pourable, mass. The effectiveness of the gelling agent varies greatly and it is within the skill of one familiar with their performance characteristics to use an appropriate amount consistent with the amount of Water incorporated in the wet blasting agent.
In addition to the principal constituents listed above, other additives such as aluminum flakes or powder, microballoons, or zinc oxide can be incorporated as is 'known in the art.
Most of the compositions of the invention are insensitive to cletonating action of a No. 8 commercial blasting cap, but are detonatable by conventional booster charges of PETN (pentaerythritol tetranitrate), RDX (cyclotrimethylenetrinitramine), Pentolite (PETN- TNT, 50/50), tetryl, Composition B (RDXTNT 60/40), gelatin dynamites and the like.
The practice of this invention is further illustrated by the following examples.
In these examples, velocity was determined using schedule 40 steel pipe of the size shown.
Sensitivity to initiation was tested by detonatin g C-4 military explosive (consisting of RDX 91%, plasticizer 5.3%, polyisobutylene 2.1%, and motor oil 1.6%) in contact with the slurry in increasing 1 g. increments until detonation of the slurry occurred.
The texture and crystallization resistance were determined by storing samples of the slurries at 14 F. and judging their consistency.
Examples 15 Blasting slurries employing ammonium nitrate and nitromethane as the sensitizer with #2 nitrocellulose as a gelling agent for the nitromethane and microballoons as supplementary sensitizers for the nitromethane were formulated with 5% urea and 10% water. No. 2 nitrocellulose is a fast gelling grade of nitrocellulose meeting US. military specification JANN-244, Grade 1, type 1. The gelling agent used was guar gum, EXFC 50-H manufactured by Stein Hall Co. The urea made possible very high ammonium nitrate concentration. The slurries exhibited 'g'ood crystallization resistance'an'd had satisfactory sensitivities and velocities. The compositions are as follows:
Example N o.
Ingredients, percent wt;
Urea 5.0 5. 5.0 5.0 5.0 Ammonium nitrate." 50. 55. 8 61. 0 61. O 66. 0 Water 10. O 10. 0 10. 0 10. 0 5. 0 Gelling agent O. 5 0. 5 0. 5 0. 5 0. 5 Micr0bal1ons 2, 0 2. 0 22. 0 2. 0 2. 0 Nitromethane 30. O 25. 0 20. 0 20. 0 20. 0 N0. 2 nitrocellulose 2.0 1. 7 1. 5 l. 5 1. 5 Sensitivity to 0-4, g.-. 10 1 30 35 15 Velocity, ft./see., 3 19, 250 16, 200 16, 450 18, 000 15, 450 Velocity, it./sec., 2" 15, 300 14, 600 1 53 1 Tetryl.
What is claimed is:
1. A method of inhibiting crystallization of a slurrytype blasting agent at lOW temperatures said blasting agent consisting essentially of ammonium nitrate, sensitized nitromethane, water, and gelling agent, consisting of incorporating in said slurry, urea in a proportion of about 4 to 7% by weight of the slurry.
2. The method of claim 1 wherein the urea is incorporated in a proportion of about 5% by weight.
References Cited CARL D. QUARFORTH, Primary Examiner S. I. LECHERT, JR., Assistant Examiner US. Cl. X.R. 1492, 60, 89
CERTIFICATE OF (IORREJQI ION Patient No l fj, 3 3 6 O 3 4 Ilated December a 1970 Inventofls) James W. Francis It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
Column 2 line 10 "tris(hydroxymethyl)" should be --tris(hydroxymethyl)--;line 2S "nitro-methane" should be --nitromethane-; line 29 "perferred" should be -preferred--.
Signed and sealed this 29th day of June 1971 (SEAL) Attest:
EDWARD M.FLETCHER,JR. WILLIAM E. SCHUYLER, JR. Attesting Officer Commissioner of Patents
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73810068A | 1968-06-19 | 1968-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3546034A true US3546034A (en) | 1970-12-08 |
Family
ID=24966571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US738100A Expired - Lifetime US3546034A (en) | 1968-06-19 | 1968-06-19 | Ammonium nitrate-nitromethane type blasting agent containing urea as a crystallization inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3546034A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3722410A (en) * | 1970-10-08 | 1973-03-27 | Kinetics Int Corp | Method of petonating an ammonium nitrate-fuel oil composition with a number 6 cap |
| US3904452A (en) * | 1972-06-29 | 1975-09-09 | Nitro Nobel Ab | Method for the stabilization of aqueous solutions of nitroform and stabilized such solutions |
| US4038112A (en) * | 1975-05-12 | 1977-07-26 | Talley-Frac Corporation | Well-fracturing explosive composition |
| US4367104A (en) * | 1979-09-18 | 1983-01-04 | Imperial Chemical Industries Limited | Finely comminuted water-soluble materials and aqueous suspensions thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3133844A (en) * | 1961-11-17 | 1964-05-19 | Aerojet General Co | Ammonium nitrate explosives containing nitroalkanes |
| US3249476A (en) * | 1964-02-25 | 1966-05-03 | Robert B Clay | Composition of low crystalization point and method of preparation |
| US3301724A (en) * | 1965-04-07 | 1967-01-31 | Jr Edwin M Scott | Detonatable compositions comprising metal nitrates and mononitroparaffins |
| US3318741A (en) * | 1965-04-08 | 1967-05-09 | Commercial Solvents Corp | Thickened nitroparaffin containing stabilizer |
| US3338165A (en) * | 1966-08-11 | 1967-08-29 | Commercial Solvents Corp | Gelled nitromethane explosive containing fluid encapsulations |
| US3356544A (en) * | 1966-05-05 | 1967-12-05 | Hercules Inc | Inorganic oxidizer salt aqueous blasting compositions containing a nitroparaffin |
| US3377217A (en) * | 1966-12-12 | 1968-04-09 | Commercial Solvents Corp | Gelled ammonium nitrate-nitromethane explosive composition |
| US3377218A (en) * | 1966-12-12 | 1968-04-09 | Commercial Solvents Corp | Gelled ammonium nitrate-nitroethane explosive composition |
| US3419444A (en) * | 1967-05-03 | 1968-12-31 | Commercial Solvents Corp | Thickened aqueous inorganic nitrate salt-nitroparaffin explosive composition sensitized with an air entrapping material |
-
1968
- 1968-06-19 US US738100A patent/US3546034A/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3133844A (en) * | 1961-11-17 | 1964-05-19 | Aerojet General Co | Ammonium nitrate explosives containing nitroalkanes |
| US3249476A (en) * | 1964-02-25 | 1966-05-03 | Robert B Clay | Composition of low crystalization point and method of preparation |
| US3301724A (en) * | 1965-04-07 | 1967-01-31 | Jr Edwin M Scott | Detonatable compositions comprising metal nitrates and mononitroparaffins |
| US3318741A (en) * | 1965-04-08 | 1967-05-09 | Commercial Solvents Corp | Thickened nitroparaffin containing stabilizer |
| US3356544A (en) * | 1966-05-05 | 1967-12-05 | Hercules Inc | Inorganic oxidizer salt aqueous blasting compositions containing a nitroparaffin |
| US3338165A (en) * | 1966-08-11 | 1967-08-29 | Commercial Solvents Corp | Gelled nitromethane explosive containing fluid encapsulations |
| US3377217A (en) * | 1966-12-12 | 1968-04-09 | Commercial Solvents Corp | Gelled ammonium nitrate-nitromethane explosive composition |
| US3377218A (en) * | 1966-12-12 | 1968-04-09 | Commercial Solvents Corp | Gelled ammonium nitrate-nitroethane explosive composition |
| US3419444A (en) * | 1967-05-03 | 1968-12-31 | Commercial Solvents Corp | Thickened aqueous inorganic nitrate salt-nitroparaffin explosive composition sensitized with an air entrapping material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3722410A (en) * | 1970-10-08 | 1973-03-27 | Kinetics Int Corp | Method of petonating an ammonium nitrate-fuel oil composition with a number 6 cap |
| US3904452A (en) * | 1972-06-29 | 1975-09-09 | Nitro Nobel Ab | Method for the stabilization of aqueous solutions of nitroform and stabilized such solutions |
| US4038112A (en) * | 1975-05-12 | 1977-07-26 | Talley-Frac Corporation | Well-fracturing explosive composition |
| US4367104A (en) * | 1979-09-18 | 1983-01-04 | Imperial Chemical Industries Limited | Finely comminuted water-soluble materials and aqueous suspensions thereof |
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