DE341886C - - Google Patents

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Publication number
DE341886C
DE341886C DE1918341886D DE341886DA DE341886C DE 341886 C DE341886 C DE 341886C DE 1918341886 D DE1918341886 D DE 1918341886D DE 341886D A DE341886D A DE 341886DA DE 341886 C DE341886 C DE 341886C
Authority
DE
Germany
Prior art keywords
recovery
solid
nitrating acid
nitrating
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
DE1918341886D
Other languages
German (de)
Inventor
Siegfried Hamburger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE341886C publication Critical patent/DE341886C/de
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C01B17/94—Recovery from nitration acids
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
    • C01B21/086—Compounds containing nitrogen and non-metals and optionally metals containing one or more sulfur atoms

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Centrifugal Separators (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Dr. S. Hamburger in Berlin.Dr. S. Hamburger in Berlin.

Verfahren zur Wiedergewinnung der Nitriersäure bei der Herstellung von SalpetersäureesternProcess for the recovery of nitrating acid in the production of nitric acid esters

oder Nitroverbindungen.or nitro compounds.

Zusatz zum Patent 299680.Addendum to patent 299680.

Patentiert im Deutschen Reiche vom 21. Juni 1918 ab. Längste Dauer: 11. Mai 1931.Patented in the German Empire on June 21, 1918. Longest duration: May 11, 1931.

In dem Patent 299680 findet bei der Herstellung von Nitrozellulose oder ähnlichen Stoffen eine Wiedergewinnung der Nitriersäure durch Auswaschen mittels Schwefelsäure solcher Konzentration statt, daß ihr Wassergehalt etwa dem der Nitriersäure entspricht. Hier ist die Wiedergewinnung der Nitriersäure in Verbindung mit Nitrozellulose ganz allgemein und ähnlichen Stoffen beschrieben. Weitere Versuche haben ergeben, daß das analoge Verfahren auch für die Wiedergewinnung der Nitriersäure bei der Herstellung der festen Salpetersäureester der Zuckerarten sowie der festen Nitroverbindungen von Benzol, Toluol, Xylol, Naphthalin,. Anthracen, Phenolen und deren Abkömmlingen, beispielsweise o-, m-, p-Nitrophenol, o-, m-, p-Dinitrobenzol, Tetranitromethylanilin, Nitroxylol, p-Nitrotoluol, Dinitronaphthalin usw., anwendbar ist, und dieIn the patent 299680 finds in the production of nitrocellulose or the like Substances a recovery of the nitrating acid by washing out with sulfuric acid such Concentration instead of the fact that its water content corresponds approximately to that of the nitrating acid. Here is the Recovery of nitrating acid in connection with nitrocellulose in general and similar substances described. Further experiments have shown that the analogous process also for the recovery of the nitrating acid in the manufacture of the solid ones Nitric acid esters of the sugars as well as the solid nitro compounds of benzene, toluene, Xylene, naphthalene ,. Anthracene, phenols and their derivatives, for example o-, m-, p-nitrophenol, o-, m-, p-dinitrobenzene, tetranitromethylaniline, Nitroxylene, p-nitrotoluene, dinitronaphthalene, etc., is applicable, and the

ao vorliegende Erfindung bezweckt, das Verfahren des Patentes 299680 auf die Wiedergewinnung der Nitriersäure bei der Herstellung der oben aufgeführten Verbindungen auszudehnen.The present invention aims to apply the method of patent 299680 to the recovery to expand the nitrating acid in the preparation of the compounds listed above.

Die Einzelheiten des Verfahrens ergeben sich von selbst und sind in dem Hauptpatent ausgeführt; auch können diese Einzelheiten bei der Wiedergewinnung der Nitriersäure in Verbindung mit der allgemeinen Herstellung von festen Salpetersäureestern und festen Nitroverbindungen eine sinngemäße Abänderung im Rahmen des ursprünglichen Erfindungsgedankens finden. The details of the process are self-evident and are in the main patent executed; these details can also be used in the recovery of the nitrating acid in Connection with the general production of solid nitric acid esters and solid Nitro compounds find a corresponding modification within the scope of the original inventive concept.

Claims (1)

Patent-Anspruch: "Patent claim: " Ausdehnung des Verfahrens zur Wiedergewinnung von Nitriersäure gemäß dem Patent 299680 auf die Wiedergewinnung von Nitriersäure bei der Herstellung von festen Salpetersäureestern der Zuckerarten sowie von sämtlichen festen Nitroverbindungen von Benzol, Toluol, Xylol, Naphthalin, Anthracen, Phenolen und deren Abkömmlingen. Extension of the process for the recovery of nitrating acid according to Patent 299680 on the recovery of nitrating acid in the manufacture of solid nitric acid esters of the sugars as well as all solid nitro compounds of benzene, toluene, xylene, naphthalene, Anthracene, phenols and their derivatives.
DE1918341886D 1916-05-12 1918-06-21 Expired DE341886C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE299680T 1916-05-12

Publications (1)

Publication Number Publication Date
DE341886C true DE341886C (en) 1921-10-10

Family

ID=6091316

Family Applications (3)

Application Number Title Priority Date Filing Date
DE1916299680D Expired DE299680C (en) 1916-05-12 1916-05-12
DE1917300747D Expired DE300747C (en) 1916-05-12 1917-05-24
DE1918341886D Expired DE341886C (en) 1916-05-12 1918-06-21

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DE1916299680D Expired DE299680C (en) 1916-05-12 1916-05-12
DE1917300747D Expired DE300747C (en) 1916-05-12 1917-05-24

Country Status (2)

Country Link
DE (3) DE299680C (en)
FR (1) FR518656A (en)

Also Published As

Publication number Publication date
DE299680C (en) 1920-09-09
DE300747C (en) 1920-09-27
FR518656A (en) 1921-05-28

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