AT49942B - Process for the preparation of mixtures of aromatic nitro compounds from solvent naphtha. - Google Patents

Process for the preparation of mixtures of aromatic nitro compounds from solvent naphtha.

Info

Publication number
AT49942B
AT49942B AT49942DA AT49942B AT 49942 B AT49942 B AT 49942B AT 49942D A AT49942D A AT 49942DA AT 49942 B AT49942 B AT 49942B
Authority
AT
Austria
Prior art keywords
mixtures
solvent naphtha
preparation
nitro compounds
aromatic nitro
Prior art date
Application number
Other languages
German (de)
Inventor
Carl Distler
Emilio Blecher
Carlos Lopez
Original Assignee
Carl Distler
Emilio Blecher
Carlos Lopez
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 Carl Distler, Emilio Blecher, Carlos Lopez filed Critical Carl Distler
Application granted granted Critical
Publication of AT49942B publication Critical patent/AT49942B/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

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   Auf diese Weise Können die Rückstandsäuren wiederholt zu Vornitrierungen der Solvent-   naphtha   ausgenützt werden. Sollten sie durch das bei Reaktion entstandene Wasser soweit verdünnt werden, dass sie nicht mehr zur Vornitrierung geeignet sind, so werden sie mit den bei der Fertignitrierung der öligen Nitrokörper erhaltenen   Rückstandsäuren   versetzt, Sollten sich   grössere   Mengen von   Rückstandaäuro anhäufen, so werden   sie in bekannter Weise regeneriert. 



   Aus dem obigen geht hervor, dass das neue Verfahren im wesentlichen darin besteht, dass man die im Patente Nr. 49941 verwendete, gewöhnliche   Schwefelsäure   durch rauchende Schwefelsäure ersetzt, welche bei einem mit der gewöhnlichen Schwefelsäure fast gleichen Preise eine erheblich stärkere   Wasserentziehung   bewirkt, was bei der Nitrierung der oben genannten in der Solventnaphtha neu aufgefundenen Kohlenwasserstoffe sich als vorteilhaft erwiesen hat. 



   Das neue Verfahren hat sich gegenüber dem des Verfahrens des Patentes Nr. 49941 demnach auch als wirtschaftlicher Fortschritt herausgestellt.



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   In this way, the residual acids can be used repeatedly for prenitration of the solvent naphtha. If they are diluted by the water produced during the reaction to such an extent that they are no longer suitable for pre-nitration, they are mixed with the residual acids obtained during the final nitration of the oily nitro bodies regenerated.



   From the above it can be seen that the new process essentially consists in replacing the common sulfuric acid used in Patent No. 49941 with fuming sulfuric acid, which, at a price almost the same as that of the common sulfuric acid, causes a considerably greater dehydration the nitration of the above-mentioned hydrocarbons newly found in solvent naphtha has proven advantageous.



   The new process has therefore also proven to be an economic advance compared to the process of patent no. 49941.

Claims (1)

PATENT-ANSPRUCH : Abänderung des durch das Stammpatent Nr. 49941 geschützten Verfahrens zur Herstellung von Gemischen aromatischer Nitroverbindungen aus Solventnaphtha, dadurch gekennzeichnet, EMI2.1 PATENT CLAIM: Modification of the process for the production of mixtures of aromatic nitro compounds from solvent naphtha, which is protected by the parent patent No. 49941, characterized in that, EMI2.1
AT49942D 1907-08-16 1910-09-07 Process for the preparation of mixtures of aromatic nitro compounds from solvent naphtha. AT49942B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT49941T 1907-08-16
AT49942T 1910-09-07

Publications (1)

Publication Number Publication Date
AT49942B true AT49942B (en) 1911-09-25

Family

ID=25601747

Family Applications (1)

Application Number Title Priority Date Filing Date
AT49942D AT49942B (en) 1907-08-16 1910-09-07 Process for the preparation of mixtures of aromatic nitro compounds from solvent naphtha.

Country Status (1)

Country Link
AT (1) AT49942B (en)

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