DE496703C - Process for the separation of nitroglycerine and similar liquids from waste acid - Google Patents

Process for the separation of nitroglycerine and similar liquids from waste acid

Info

Publication number
DE496703C
DE496703C DEN29289D DEN0029289D DE496703C DE 496703 C DE496703 C DE 496703C DE N29289 D DEN29289 D DE N29289D DE N0029289 D DEN0029289 D DE N0029289D DE 496703 C DE496703 C DE 496703C
Authority
DE
Germany
Prior art keywords
nitroglycerin
waste acid
separation
nitroglycerine
similar liquids
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
DEN29289D
Other languages
German (de)
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.)
KARL NIEDERMANNER
Original Assignee
KARL NIEDERMANNER
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 KARL NIEDERMANNER filed Critical KARL NIEDERMANNER
Priority to DEN29289D priority Critical patent/DE496703C/en
Application granted granted Critical
Publication of DE496703C publication Critical patent/DE496703C/en
Expired legal-status Critical Current

Links

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
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • C06B21/0091—Elimination of undesirable or temporary components of an intermediate or finished product, e.g. making porous or low density products, purifying, stabilising, drying; Deactivating; Reclaiming

Landscapes

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

Description

Verfahren zur Scheidung des Nitroglycerins und ähnlicher Flüssigkeiten von der Abfallsäure Bei der Herstellung von ;Nitroglycerin bilaet sich infolge der Rührung der Miscbsätire beim Zulauf des Glvcerins eine Emulsion von Nitroglycerin und Säure. Das bisher übliche Verfahren zur Abscheidung des Nitroglycerins beruht darauf, daß diese Emulsion sich trennt, wenn das Nitriergemisch dem Einfluß der Rührung entzogen wird. wobei sich das Nitroglycerin auf der schwereren Abfallsäure ansammelt. Die letzten Reste des in der Säure suspendierten Nitroglycerins kommen indessen erst allmählich zur Abscheidung.Procedure for the separation of the nitroglycerin and similar liquids from the waste acid in the production of; nitroglycerin accumulates as a result of the Stirring the mixers when the glycerine is fed in to form an emulsion of nitroglycerine and acid. The previously common method for separating the nitroglycerin is based ensure that this emulsion separates when the nitriding mixture is influenced by the Emotion is withdrawn. whereby the nitroglycerin is based on the heavier waste acid accumulates. The last remnants of the nitroglycerin suspended in the acid come however only gradually to the separation.

Es ist bereits vorgeschlagen worden, das Nitroglycerin im Nitriergemisch " zunächst durch Abkühlen zum Erstarren zu bringen und alsdann in kristallisiertem Zustand vermittels einer Filterzentrifuge von der Ab- s äure # züi scheiden.It has already been proposed to bring the nitroglycerin in the nitration ", first by cooling to solidify and then in crystallized state by means of a centrifugal filter from the exhaust s äure # züi divorce.

Es ist nun gefunden worden, daß man das Nitroglycerin nicht erst in den festen Zustand Überzuführen braucht, um mit Hilfe der Zentrifugalkraft die Scheidung vorzunehmen. Es läßt sich nämlich unter Anwendung einer Separierzentrifuge die direkte Trennung des flüssigen Nitroglycerins von der Abfallsäure durchführen, Zoobei der Unterschied der spezifischen Gewichte beider Flüssigkeiten ausgenutzt wird. Diese Arbeitsweise bedeutet eine wesentliche Vereinfachung gegenüber dem vorerwähnten bekannten Verfahren und besitzt gegenüber dein zur Zeit in der Praxis allgemein üblichen Scheideverfahren den Vorteil, daß eine augenblickliche Trennung des Nitroglycerins von der Säure erfolgt und die Abfallsäure frei von suspendiertem Nitroglycerin anfällt, wodurch die sonst übliche Nachscheidung vermieden wird.It has now been found that the nitroglycerin is not only used in To convert the solid state needs to divorce with the help of centrifugal force to undertake. This is because it can be used directly using a separating centrifuge Carry out separation of the liquid nitroglycerine from the waste acid, Zoobei der The difference in the specific weights of the two liquids is exploited. These Operation means a significant simplification compared to the above known method and has general practice at the moment conventional separation processes have the advantage that an instant separation of the nitroglycerine from the acid and the waste acid is free of suspended nitroglycerin, whereby the otherwise usual post-separation is avoided.

Der Arbeitsgang gestaltet sich nach der Erfindung derart, daß das aus dem Nitriergefäß abfließende Gemisch einer Separierzentrifuge zugeführt wird, in der sich durch Einwirkung der Zentrifugalkraft das Nitroglycerin von der Säure scheidet. Aus der Zentrifuge fließt die Säure in die Denitrierung, während das Nitroglycerin in einen Waschapparat geleitet und in der üblichen Weise weiterbehandelt wird.The operation is designed according to the invention such that the The mixture flowing out of the nitration vessel is fed to a separating centrifuge, in which the nitroglycerin is separated from the acid by the action of centrifugal force part. The acid flows from the centrifuge into the denitration, while the nitroglycerin is passed into a washing machine and treated in the usual way.

Selbstverständlich läßt sich das Verfahren auch auf das bisher übliche chargenweise Nitrierverfahren anwenden, indem dann lediglich die nach der Scheidung anfallende Abfallsäure, die noch geringe Mengen Nitroglycerin enthält, dem Zentrifugierprozeß unterworfen wird.Of course, the process can also be applied to what has been customary up to now Apply batch nitriding, then adding only those after the divorce waste acid that still contains small amounts of nitroglycerine is the result of the centrifugation process is subjected.

Ebenso ist das Verfahren auf die anderen Salpetersäureester des Glycerins und seiner Homologen sowie deren Gemische anwendbar, soweit dieselben flüssig sind und ein von der Abfallsäure verschiedenes spezifisches Gewicht aufweisen.The same applies to the other nitric acid esters of glycerine and its homologues as well as their mixtures can be used as long as they are liquid and have a specific gravity different from that of the waste acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Abscheidung des N itroglycerins sowie ähnlicher Flüssigkeiten von der Abfallsäure unter Zuhilfenahme der Zentrifugalkraft, dadurch gekennzeichnet, daß das Nitriergemisch, ohne daß vorher das Nitroglycerin durch Abkühlen zum Erstarren gebracht wird, kontinuierlich in eine Separier-Zentrifuge übergeführt und dort auf Grund der verschiedenen spezifischen Gewichte von Nitroglycerin und Abfallsäure in seine Bestandteile getrennt wird.PATENT CLAIM: Process for separating the nitroglycerin as well similar liquids from the waste acid with the help of centrifugal force, characterized in that the nitriding mixture without the nitroglycerin beforehand is solidified by cooling, continuously in a separating centrifuge transferred and there due to the different specific weights of nitroglycerin and waste acid is separated into its constituent parts.
DEN29289D 1928-09-13 1928-09-13 Process for the separation of nitroglycerine and similar liquids from waste acid Expired DE496703C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN29289D DE496703C (en) 1928-09-13 1928-09-13 Process for the separation of nitroglycerine and similar liquids from waste acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN29289D DE496703C (en) 1928-09-13 1928-09-13 Process for the separation of nitroglycerine and similar liquids from waste acid

Publications (1)

Publication Number Publication Date
DE496703C true DE496703C (en) 1930-04-26

Family

ID=7345034

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN29289D Expired DE496703C (en) 1928-09-13 1928-09-13 Process for the separation of nitroglycerine and similar liquids from waste acid

Country Status (1)

Country Link
DE (1) DE496703C (en)

Similar Documents

Publication Publication Date Title
DE496703C (en) Process for the separation of nitroglycerine and similar liquids from waste acid
DE1905426A1 (en) Process for freeze concentration of coffee
DE831734C (en) Process for accelerated and continuous grinding out of soap
DE684966C (en) Process for the recovery of solvents from raw paraffin
DE655339C (en) Process and device for the continuous nitration of aromatic hydrocarbons which are liquid at normal temperature
DE957328C (en) Process for the continuous separation of paraffins from hydrocarbon oils by adduct formation
DE523500C (en) Process for the production of highly concentrated paraffin
DE4237580C1 (en) Preparation of explosives containing wax
DE2333144C3 (en) Process for the processing of final acids from nitroglycerin production
US2100274A (en) Process for refining oils
DE945281C (en) Process for the separation of solid paraffin from oils containing paraffin, in particular for the production of paraffin concentrates by flotation
DE750743C (en) Process for dewaxing tars, in particular brown coal tar, with liquid sulfur dioxide
DE508407C (en) Process for separating cholesterol from wool fat with simultaneous production of a soap containing the fatty acids in wool fat
DE441179C (en) Process for reducing organic compounds
DE626840C (en) Process for obtaining paraffin
DE735322C (en) Process for decolorizing purified, high-boiling tar hydrocarbons
DE360687C (en) Process for the production of naphthalene, anthracene and the like Like. From tea oils and similar liquids
DE345350C (en) Process for removing fatty acids, resins, bitter and slimy substances from fats and oils
DE767269C (en) Process for making butter
DE580874C (en) Process for the refining of fatty oils, fats and waxes of the ester type
DE29290C (en) Method of separating the soap core from the lower liquor by centrifugation
DE610807C (en) Process for dewaxing petroleum
DE1048875B (en) Method and device for carrying out chemical reactions
DE938667C (en) Process for separating explosive liquid nitric acid esters from washing water
DE909387C (en) Process for the processing of solid paraffins obtained in the production of hydrocarbons from carbon oxide and hydrogen according to Fischer-Tropsch