DE458520C - Process to accelerate the deposition of nitroglycerine - Google Patents

Process to accelerate the deposition of nitroglycerine

Info

Publication number
DE458520C
DE458520C DEC37016D DEC0037016D DE458520C DE 458520 C DE458520 C DE 458520C DE C37016 D DEC37016 D DE C37016D DE C0037016 D DEC0037016 D DE C0037016D DE 458520 C DE458520 C DE 458520C
Authority
DE
Germany
Prior art keywords
accelerate
deposition
nitroglycerine
nitration
acid
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
Application number
DEC37016D
Other languages
German (de)
Inventor
Dr-Ing Gerhard Von Loebbecke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CARBONIT AKT GES
Original Assignee
CARBONIT AKT GES
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CARBONIT AKT GES filed Critical CARBONIT AKT GES
Priority to DEC37016D priority Critical patent/DE458520C/en
Application granted granted Critical
Publication of DE458520C publication Critical patent/DE458520C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/02Preparation of esters of nitric acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Beschleunigung der Abscheidung des Nitroglyzerins. Es ist bekannt, daß man bei der Nitroglyzerinherstellung nach beendeter Nitrierung durch Zusätze von Silikaten, Fluoriden oder neuerdings Schwermetallsulfaten die Scheidung des Nitroglyzerins von dem Säuregemisch beschleunigen kann. Während man bei dem Zusatz von Fluoriden die unangenehmen Eigenschaften der Flußsäure in den Kauf nehmen muß, erhält man durch Einbringen von Silikaten und Schwermetallsulfaten eine unerwünschte Menge Schlamm, die den Wert der Abfallsäure vermindert und die Apparate verunreinigt. Bei allen diesen Zusätzen nimmt die vollständige Albscheidung des Nitroglyzerins jedoch noch längere Zeit in Anspruch.Process to accelerate the deposition of nitroglycerine. It it is known that nitroglycerin is produced after the nitration has ended by adding silicates, fluorides or, more recently, heavy metal sulfates Separation of the nitroglycerin from the acid mixture can accelerate. While one with the addition of fluorides the unpleasant properties of hydrofluoric acid in the You have to buy, you get by introducing silicates and heavy metal sulfates an undesirable amount of sludge which degrades the value of the waste acid and which Equipment contaminated. With all of these additions, complete separation takes place the nitroglycerine, however, takes a long time.

Nach dem Verfahren der Erfindung werden diese Nachteile dadurch beseitigt, daß man vor der Nitrierung dem Glyzerin oder dem Säuregemisch organische Verbindungen, z. B. Amide, wie Acetamid, Dicyandiamid oder Harnstoff, beimengt, die auf die Nitrierung keinen Einfluß ausüben. Sie werden durch die Säure ohne Rückstand zersetzt und bilden dabei indifferente Gase, die gleichmäßig in Bläschen aufsteigend eine wesentliche Beschleunigung der Scheidung erreichen. Dies kann sogar so gesteigert werden, daß sich eine längere Nachscheidung erübrigt. Man verfährt beispielsweise wie folgt: Vor der Nitrierung werden bis zu I % der organischen Verbindungen dem Glyzerin oder dem Säuregemisch zugesetzt. Nach normal verlaufender Xlitrierung beginnt sofort die gleichmäßige Gasentwicklung; dadurch wird die vollkommene Scheidung in kürzerer Zeit beendet, als es bei den bisher gebräuchlichen Verfahren möglich war.According to the process of the invention, these disadvantages are eliminated by adding organic compounds, e.g. B. amides such as acetamide, dicyandiamide or urea are added, which have no effect on the nitration. They are decomposed by the acid without leaving any residue and in the process they form indifferent gases which, rising evenly in vesicles, achieve a substantial acceleration of the separation. This can even be increased so that a longer re-separation is unnecessary. The procedure is as follows, for example: Before nitration, up to 1 % of the organic compounds are added to the glycerine or the acid mixture. After the nitration has proceeded normally, the uniform evolution of gas begins immediately; as a result, the complete divorce is ended in a shorter time than was possible with the previously common procedures.

Claims (1)

PATENTANSYRUCII: Verfahren zur Beschleunigung der Abscheidung des Nitroglyzerins bei der Nitrierung von Glyzerin, dadurch gekennzeichnet, daß man vor der Nitrierung dem Glyzerin und/oder dem Säuregemisch organische Verbindungen beimengt, die sich durch die Einwirkung der Säure unter gleichmäßiger Entwicklung indifferenter Gase ohne Rückstand zersetzen, wie beispielsweise Acetamid, Dicyandiamid oder Harnstoff.PATENTANSYRUCII: Method to accelerate the deposition of the Nitroglycerin in the nitration of glycerin, characterized in that one before nitration, the glycerine and / or the acid mixture are organic compounds admixed, which is due to the action of the acid with uniform development decompose indifferent gases without residue, such as acetamide, dicyandiamide or urea.
DEC37016D 1925-07-30 1925-07-30 Process to accelerate the deposition of nitroglycerine Expired DE458520C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC37016D DE458520C (en) 1925-07-30 1925-07-30 Process to accelerate the deposition of nitroglycerine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC37016D DE458520C (en) 1925-07-30 1925-07-30 Process to accelerate the deposition of nitroglycerine

Publications (1)

Publication Number Publication Date
DE458520C true DE458520C (en) 1928-04-12

Family

ID=7022606

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC37016D Expired DE458520C (en) 1925-07-30 1925-07-30 Process to accelerate the deposition of nitroglycerine

Country Status (1)

Country Link
DE (1) DE458520C (en)

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