DE181489C - - Google Patents
Info
- Publication number
- DE181489C DE181489C DENDAT181489D DE181489DA DE181489C DE 181489 C DE181489 C DE 181489C DE NDAT181489 D DENDAT181489 D DE NDAT181489D DE 181489D A DE181489D A DE 181489DA DE 181489 C DE181489 C DE 181489C
- Authority
- DE
- Germany
- Prior art keywords
- acid
- nitroglycerine
- nitration mixture
- mixture
- nitroglycerin
- 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.)
- Active
Links
- SNIOPGDIGTZGOP-UHFFFAOYSA-N 1,2,3-propanetrioltrinitrate Chemical group [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 claims description 10
- 229960003711 glyceryl trinitrate Drugs 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 238000006396 nitration reaction Methods 0.000 claims description 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N Silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N HF Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims 2
- 150000001447 alkali salts Chemical class 0.000 claims 1
- 239000000470 constituent Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 235000011187 glycerol Nutrition 0.000 description 6
- 229940014995 Nitroglycerin Drugs 0.000 description 5
- 239000000006 Nitroglycerin Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000000996 additive Effects 0.000 description 4
- 238000005121 nitriding Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000036826 Excretion Effects 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000029142 excretion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 241000182341 Cubitermes group Species 0.000 description 1
- RBNPOMFGQQGHHO-UHFFFAOYSA-N Glyceric acid Chemical compound OCC(O)C(O)=O RBNPOMFGQQGHHO-UHFFFAOYSA-N 0.000 description 1
- ABTOQLMXBSRXSM-UHFFFAOYSA-N Silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001804 emulsifying Effects 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/02—Preparation of esters of nitric acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
— JVl 181489 — KLASSE 78 c. GRUPPE - JVl 181489 - CLASS 78 c. GROUP
Bei der Herstellung von Nitroglycerin wird bekanntlich das Glycerin in ein Gemisch von Salpeter- und Schwefelsäure eingeführt, in welchem Säuregemisch die Nitrierung des Glycerins erfolgt. Das Säuregemisch, in dem sich das Nitroglycerin zunächst in Form einer Emulsion befindet, wird alsdann in ein Gefäß abgelassen, in welchem sich die Nitroglycerinteilchen allmählich vereinigen und alsIn the production of nitroglycerin, it is known that the glycerin is mixed introduced by nitric and sulfuric acid, in which acid mixture the nitration of the Glycerine is made. The acid mixture in which the nitroglycerin is initially in the form an emulsion is then drained into a vessel in which the nitroglycerin particles are located gradually unite and as
ίο eine das Säuregemisch überdeckende Schicht nach oben steigen. Diese Trennung von Nitroglycerin und Säure erfolgt jedoch in manchen Fällen außerordentlich langsam, und die volle Ausbeute an Nitroglyzerin ist oft nicht möglich, oder es macht sich ein besonderes, stets mit großen Verlusten verbundenes Auswaschen der Charge erforderlich. Die Kosten und die Gefahren der Fabrikation werden durch den unvermeidlichen Zeitverlust, welchen das Absetzenlassen der Säure bedingt, sehr erhöht.ίο a layer covering the acid mixture rise to the top. However, this separation of nitroglycerin and acid takes place extremely slowly in some cases, and the full yield of nitroglycerine is often not possible, or it makes a special one, washing out of the batch, which is always associated with large losses, is necessary. The costs and dangers of manufacturing are reduced by the inevitable loss of time, which causes the acid to settle, is greatly increased.
Es ist nun eine bekannte Tatsache, daß gelatinöse, gallertartige Flüssigkeiten die emulgierten Teilchen lange schwebend erhalten.It is now a known fact that gelatinous, gelatinous liquids emulsified them Particles kept floating for a long time.
Wie nun gefunden wurde, ist die Zeitdauer, welche das Nitroglycerin zum Übergang aus der Emulsionsform in diejenige einer reinen Flüssigkeit braucht, stets. dann besonders groß, wenn lösliche gallertartige Silikate im Nitriergemisch enthalten sind; schon sehr geringe derartige Beimischungen sind im Stande, die Ausscheidung des Nitroglycerins.As has now been found, this is the length of time it takes the nitroglycerin to transition out the emulsion form into that of a pure liquid always needs. then especially large when soluble gelatinous silicates are contained in the nitriding mixture; very pretty small admixtures of this kind are able to reduce the excretion of nitroglycerine.
zu verlangsamen. Kleine Mengen von Silikaten bezw. Kieselsäure finden sich aber in den zur Verwendung kommenden Säuren stets vor, auch dann, wenn an.sich völlig chemisch reine Säuren benutzt werden, da diese aus gläsernen Behältern stets etwas Kieselsäure aufnehmen. Ebenso wurde gefunden, daß auch das Glycerin stets Spuren von Kieselsäure enthält.to slow down. Small amounts of silicates respectively. Silicic acid can be found in The acids used are always present, even if they are completely chemically pure acids are used, as these always come from glass containers Absorb silica. It was also found that the glycerine always contains traces of silica.
Setzt mar? daher dem Reaktionsgemisch Substanzen zu, welche das gallertartige Silikat in eine solche Form überzuführen im Stande sind, daß die Beimischungen ihre emulgierende Wirkung verlieren, so wird die für die Ausscheidung des Nitroglycerins erforderliche Zeit erheblich abgekürzt. Als solche Zusätze empfehlen sich die Fluorverbindungen, welche mit der Kieselsäure Siliciumfluorid (Si FlJ ergeben. Eine besonders günstige Wirkung ergibt Fluornatrium. Man kann den Zusatz entweder dem Glycerin vor dessen Eintritt in das Nitriergefäß oder auch dem Glycerinsäuregemisch im Nitriergefäß , selbst beimischen. Da letzteres mit einem Rührwerk versehen ist, so erfolgt die Verteilung des Zusatzes ganz gleichförmig. Ebenso kann man auch jedem der drei Bestandteile des Gemisches, dem Glycerin, der Schwefelsäure und der Salpetersäure den Zusatz geben.Sets mar? therefore adding substances to the reaction mixture which are able to convert the gelatinous silicate into such a form that the admixtures lose their emulsifying effect, the time required for the excretion of the nitroglycerine is considerably shortened. The fluorine compounds are recommended as such additives, which together with the silicic acid result in silicon fluoride (Si FlJ. Fluorosodium has a particularly favorable effect. The addition can either be added to the glycerol before it enters the nitriding vessel or to the glyceric acid mixture in the nitriding vessel If the additive is provided with a stirrer, the additive is distributed quite uniformly, and the additive can also be added to each of the three components of the mixture, glycerine, sulfuric acid and nitric acid.
Was die Menge des Zusatzes anbelangt,As for the amount of additive,
so genügt bei Verwendung von Fluornatrium ..schon ..ein Zusatz von 0,001 Prozent zumwhen using fluorosodium .. an addition of 0.001 percent to the
Glycerin vor dessen Eingabe in das Nitriergefäß und ein nachträglicher gleich großer Zusatz zu dem Reaktionsgemisch.Glycerine before entering it into the nitriding vessel and a subsequent one of the same size Addition to the reaction mixture.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE181489C true DE181489C (en) |
Family
ID=445663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT181489D Active DE181489C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE181489C (en) |
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0
- DE DENDAT181489D patent/DE181489C/de active Active
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