US1566784A - Nils alfred tjistger - Google Patents
Nils alfred tjistger Download PDFInfo
- Publication number
- US1566784A US1566784A US1566784DA US1566784A US 1566784 A US1566784 A US 1566784A US 1566784D A US1566784D A US 1566784DA US 1566784 A US1566784 A US 1566784A
- Authority
- US
- United States
- Prior art keywords
- silicon
- explosive
- weight
- parts
- nitro
- 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
- 239000002360 explosive Substances 0.000 description 36
- 229910052710 silicon Inorganic materials 0.000 description 26
- 239000010703 silicon Substances 0.000 description 24
- SNIOPGDIGTZGOP-UHFFFAOYSA-N 1,2,3-propanetrioltrinitrate Chemical compound [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 description 22
- 229960003711 glyceryl trinitrate Drugs 0.000 description 22
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 16
- 239000000203 mixture Substances 0.000 description 16
- DVARTQFDIMZBAA-UHFFFAOYSA-O Ammonium nitrate Chemical compound [NH4+].[O-][N+]([O-])=O DVARTQFDIMZBAA-UHFFFAOYSA-O 0.000 description 14
- 239000000020 Nitrocellulose Substances 0.000 description 12
- 229940079938 Nitrocellulose Drugs 0.000 description 12
- 229920001220 nitrocellulos Polymers 0.000 description 12
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2S,3R,4S,5R,6R)-2-[(2R,3R,4S,5R,6S)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2R,3R,4S,5R,6S)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 4
- 238000005422 blasting Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 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
- C06B33/04—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 nitrogen-oxygen salt
Definitions
- This invention relates to a socalled safety explosive.
- the object of the invention is to produce a powerful explosive of this kind with great rapidity of detonation and which explosive can easily be caused to detonate by means of a percussion cap, but which nevertheless retains all the characteristics of a safety explosive, besides which the explosive according to the present invention has the advantage tl at the gases developed or formed on the explosion of the same are of noninjurious character, so that it is well adapted for use in blasting both above ground and in mines. Further the explosive according to the present invention has advantage that it may be manufactured at a comparatively low cost.
- the explosive according to the present invention consists substantially of a mixture of ammonium nit ate, ferro-silicon or silicon, and nitro-glycerine, gelatinized with nitrocellulose.
- gelatinized nitroglycerine is used. I have found that gelatinized nitro-glycerine is much superior to ordinary 1iitroglycerine in the composition of my safety explosive. I ilro-glycerine is a liquid and the composition tends to lump and harden in cartridges and exude during storage. whereas I have found that when gelatinized nitro-glycerine is used not only is the explosive a better explosive but it possesses numerous advantages such as the fact that it does not bake or harden in cartridges and does not exude The. proportions of the r of course, vary within wide liin-ut. of example the following proportions are cited,
- ferro silicon or silicon By the use of a high proportion of ferro silicon or silicon the explosive will be cheaper owing to the low price of that ma terial. It is advantageous to employ either high-percent ferro-silicon (containing, for example 7595% Si), or else silicon is used.
- suitable compositions v (1.) 55 parts by weight of ammonium nitrate, parts by weight of fcrrosilicon or silicon, 10 parts by weight of gelatinized nitroglycerine (containing about 4.0% nitrocellulose).
- silicon used in the claims is intended to cover and include any substance containing a large percent of available silicon, such as a ferro-silicon of the kind mentioned above.
- An explosive consisting substantially of a mixture of ammonium nitrate, silicon, and nitro-glycerine, the latter being gelatinized by nitro-cellulose.
- An explosive consisting substantially of -85 parts by Weight of ammonium nitrate, 10l0 parts by weight of silicon. and 145 parts by weight of nitro-glycerine gelatinized with nitro-cellulose.
- An explosive consisting substantially of parts by weight of ammonium nitrate, 35 parts by weight. of silicon, and 10 parts by weight of gelatinized nitro-glycerine containing about 4.0% nitrocellulose.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Description
Fatented en, 22, 1925.
UNIT s1 eena EXPLOSIVE.
N Drawing.
1 '0 all whom it may concern:
Be it known that 1, Nine Annex) UNonn, engineer, a subject of the King of Sweden, residing at l interviken, iispudden, in the llingdo n of Sweden, have i vented certain new and useful Improvements in Explosives; and I do hereby declare the following to be a full, clear. and exact description of the invention, such as will enable others ski led in the art to which it appertains to make and use the same.
This invention relates to a socalled safety explosive. The object of the invention is to produce a powerful explosive of this kind with great rapidity of detonation and which explosive can easily be caused to detonate by means of a percussion cap, but which nevertheless retains all the characteristics of a safety explosive, besides which the explosive according to the present invention has the advantage tl at the gases developed or formed on the explosion of the same are of noninjurious character, so that it is well adapted for use in blasting both above ground and in mines. Further the explosive according to the present invention has advantage that it may be manufactured at a comparatively low cost.
The explosive according to the present invention consists substantially of a mixture of ammonium nit ate, ferro-silicon or silicon, and nitro-glycerine, gelatinized with nitrocellulose.
i am aware that the explosive composition containing nitrate of ammonia, ferro-silicon and i'ritro-glycerine before known. According to the present invention however gelatinized nitroglycerine is used. I have found that gelatinized nitro-glycerine is much superior to ordinary 1iitroglycerine in the composition of my safety explosive. I ilro-glycerine is a liquid and the composition tends to lump and harden in cartridges and exude during storage. whereas I have found that when gelatinized nitro-glycerine is used not only is the explosive a better explosive but it possesses numerous advantages such as the fact that it does not bake or harden in cartridges and does not exude The. proportions of the r of course, vary within wide liin-ut. of example the following proportions are cited,
50-85 parts by weight of ammonium n1- Applieation filed March 14, 1924. Serial No. 699,317.
trate, l0 parts by weight of ferro-silicon or silicon, 115 parts by weight of gelatinized nitro-glycerine.
By the use of a high proportion of ferro silicon or silicon the explosive will be cheaper owing to the low price of that ma terial. It is advantageous to employ either high-percent ferro-silicon (containing, for example 7595% Si), or else silicon is used. The following are further examples of suitable compositions v (1.) 55 parts by weight of ammonium nitrate, parts by weight of fcrrosilicon or silicon, 10 parts by weight of gelatinized nitroglycerine (containing about 4.0% nitrocellulose).
(2) 7678 parts by weight of ammonium nitrate, 1416 parts by weight of ferrosilicon or silicon, 8 parts by weight of gelatinized nitro-glycerine (containing about 4.0% nitro-cellulose) The process for the manufacture of this explosive is extremely simple. The ammonium nitrate pulverized to a suitable degree of fineness is first mixed or incorporated with nitro-glycerine the likewise finely pulverized ferro-silicon or silicon is thoroughly kneaded or worked into the resulting mixture, whereby a mixture in the form of a somewhat plastic powder is obtained.
It will be understood that the term silicon used in the claims is intended to cover and include any substance containing a large percent of available silicon, such as a ferro-silicon of the kind mentioned above.
Having thus described my invention I declare that what I claim is 1. An explosive, consisting substantially of a mixture of ammonium nitrate, silicon, and nitro-glycerine, the latter being gelatinized by nitro-cellulose.
An explosive consisting substantially of -85 parts by Weight of ammonium nitrate, 10l0 parts by weight of silicon. and 145 parts by weight of nitro-glycerine gelatinized with nitro-cellulose.
S. An explosive consisting substantially of parts by weight of ammonium nitrate, 35 parts by weight. of silicon, and 10 parts by weight of gelatinized nitro-glycerine containing about 4.0% nitrocellulose.
In testimony whereof I affix my signature.
NILS ALFRED UNGER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1566784A true US1566784A (en) | 1925-12-22 |
Family
ID=3409761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1566784D Expired - Lifetime US1566784A (en) | Nils alfred tjistger |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1566784A (en) |
-
0
- US US1566784D patent/US1566784A/en not_active Expired - Lifetime
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