DE480906C - Process for the preparation of alkali nitrates - Google Patents

Process for the preparation of alkali nitrates

Info

Publication number
DE480906C
DE480906C DEI28500D DEI0028500D DE480906C DE 480906 C DE480906 C DE 480906C DE I28500 D DEI28500 D DE I28500D DE I0028500 D DEI0028500 D DE I0028500D DE 480906 C DE480906 C DE 480906C
Authority
DE
Germany
Prior art keywords
preparation
alkali nitrates
alkali
acid
sulfuric 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
DEI28500D
Other languages
German (de)
Inventor
Dr Christoph Beck
Dr Wilhelm Wild
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI28500D priority Critical patent/DE480906C/en
Application granted granted Critical
Publication of DE480906C publication Critical patent/DE480906C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D9/00—Nitrates of sodium, potassium or alkali metals in general
    • C01D9/04—Preparation with liquid nitric acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Description

Verfahren zur Darstellung von Alkalinitraten In dem Hauptpatent 390 791 ist ein Verfahren zur Darstellung von Alkalinitraten aus Salpetersäure oder nitrosen Gasen und Alkalichloriden beschrieben, wobei aus dem beim Abtreiben der Salzsäure entweichenden Gasgemisch die nitrosen Gase durch Schwefelsäure entfernt werden.Process for the preparation of alkali nitrates The main patent 390 791 describes a process for the preparation of alkali nitrates from nitric acid or nitrous gases and alkali chlorides, the nitrous gases being removed by sulfuric acid from the gas mixture escaping during the expulsion of the hydrochloric acid.

Es hat sich nun gezeigt, daß es von besonderem Vorteil ist, diese Reaktion unter erhöhtem Druck auszuführen. Hierbei verläuft nicht nur die Absorption der nitrosen Gase viel leichter und rascher, sondern überraschenderw Ibise wird auch die Löslichkeit von Salzsäure in Schwefelsäure trotz des höheren Partialdruckes nicht nennenswert gesteigert. Man kommt bei Ausführung des Verfahrens unter Druck mit wesentlich kleineren Apparaten und mit geringeren Schwefelsäuremenge,n aus als beim Arbeiten unter Atmosphärendruck. Beispiel Ein aus go% N2, 6% 0.i, i % N"03 und 3% HC1 bestehendes Gasgemisch wird unter Anwendung eines abs. Druckes von 6 Atm. mit konzentrierter Schwefelsäure behandelt. Man erhält eine Lösung von Nitrosylschwefelsäure in Schwefelsäure, die bis zu 50/0 Stickstoff als Nitrosylschwefelsäure enthalten kann (oberhalb 5% tritt Auskristallisieren von Nitrosylschwefelsäure ein). Die Lösung nimmt nur höchstens o,025% Salzsäure auf.It has now been shown that it is of particular advantage to use this To carry out the reaction under increased pressure. It is not just the absorption that takes place here of nitrous gases much more easily and quickly, but surprisingly Ibise becomes also the solubility of hydrochloric acid in sulfuric acid despite the higher partial pressure not significantly increased. One comes under pressure when carrying out the process with much smaller apparatus and with a smaller amount of sulfuric acid, n than when working under atmospheric pressure. Example On from go% N2, 6% 0.i, i% N "03 and 3% HC1 existing gas mixture is using an abs. Print of 6 Atm. treated with concentrated sulfuric acid. A solution of nitrosylsulfuric acid is obtained in sulfuric acid, which contain up to 50/0 nitrogen as nitrosylsulfuric acid can (above 5%, nitrosylsulphuric acid crystallizes out). The solution only absorbs a maximum of 0.025% hydrochloric acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von Alkalinitraten aus Salpetersäure oder nitrosen Gasen und Alkalichloriden gemäß, Patent 390 79i, dadurch gekennzeichnet, daß man das entweichende Gasgemisch unter erhöhtem Druck mit Schwefelsäure behandelt.PATENT CLAIM: Process for the preparation of alkali nitrates from nitric acid or nitrous gases and alkali chlorides according to Patent 390 79i, characterized in that the escaping gas mixture is treated with sulfuric acid under increased pressure.
DEI28500D 1926-07-09 1926-07-09 Process for the preparation of alkali nitrates Expired DE480906C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI28500D DE480906C (en) 1926-07-09 1926-07-09 Process for the preparation of alkali nitrates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI28500D DE480906C (en) 1926-07-09 1926-07-09 Process for the preparation of alkali nitrates

Publications (1)

Publication Number Publication Date
DE480906C true DE480906C (en) 1929-08-10

Family

ID=7187047

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI28500D Expired DE480906C (en) 1926-07-09 1926-07-09 Process for the preparation of alkali nitrates

Country Status (1)

Country Link
DE (1) DE480906C (en)

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