DE386517C - Process for the production of sodium pyrosulfite - Google Patents

Process for the production of sodium pyrosulfite

Info

Publication number
DE386517C
DE386517C DEM77981D DEM0077981D DE386517C DE 386517 C DE386517 C DE 386517C DE M77981 D DEM77981 D DE M77981D DE M0077981 D DEM0077981 D DE M0077981D DE 386517 C DE386517 C DE 386517C
Authority
DE
Germany
Prior art keywords
production
sodium pyrosulfite
sodium
pyrosulfite
sulfate
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
DEM77981D
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.)
Michael & Co J
Original Assignee
Michael & Co J
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 Michael & Co J filed Critical Michael & Co J
Priority to DEM77981D priority Critical patent/DE386517C/en
Application granted granted Critical
Publication of DE386517C publication Critical patent/DE386517C/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
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/004—Preparation in the form of granules, pieces or other shaped products

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Description

Verfahren zur Herstellung von Natriumpyrosulfit. Nach der Patentschrift 382983 wird Kaliumpyrosulfit hergestellt, indem man in einer konzentrierten Lösung von Kaliumsulfat Bariumcarbonat, Bariumhydrat oder Strontiumcarbonat oder Strontiumhydrat suspendiert und in die Suspension schweflige Säure einleitet. Es :hat sich nun gezeigt, daß man inanaloger Weise Natriumpyrosulfit erhalten kann, wenn man an Stelle des Kaliumsulfats Natriumsulfat verwendet. Man erhält auf diese Weise Natriumpyrosulfit in quantitativer Ausbeute. Die Reaktion erfolgt nach der Gleichung: Ba C03+NazS04+2S0..+H20=BaS04+Co=+2 Na HS0, oder SrC03+Na.S04+2S0z+H,O=SrSO,,+SO=T2NaHS03. Die Lösung des Natriumbisulfits wird dann vom Bariumsulfat getrennt und das Natri-umpyrosulfit in bekannter Weise zur Abscheidung gebracht.Process for the production of sodium pyrosulfite. According to the patent specification 382983 is made potassium pyrosulfite by putting in a concentrated solution of potassium sulfate, barium carbonate, barium hydrate or strontium carbonate or strontium hydrate suspended and introduces sulfurous acid into the suspension. It: has now shown that you can get sodium pyrosulfite in an analogous manner if you replace the Potassium sulfate used sodium sulfate. Sodium pyrosulfite is obtained in this way in quantitative yield. The reaction takes place according to the equation: Ba C03 + NazS04 + 2S0 .. + H20 = BaS04 + Co = + 2 Na HS0, or SrCO3 + Na.S04 + 2S0z + H, O = SrSO ,, + SO = T2NaHS03. The solution of sodium bisulfite is then separated from the barium sulfate and the sodium pyrosulfite in a known manner brought to the deposition.

Claims (1)

PATENT-ANsPRUcH: Verfahren zur Herstellung von Natriumpyrosulfit, dadurch gekennzeichnet, daß man bei Durchführung des Verfahrens gemäß Patent 382983 an Stelle von Kaliumsulfat Natriumsulfat verwendet.PATENT CLAIM: Process for the production of sodium pyrosulphite, characterized in that when carrying out the method according to patent 382983 used instead of potassium sulfate sodium sulfate.
DEM77981D 1922-06-02 1922-06-02 Process for the production of sodium pyrosulfite Expired DE386517C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM77981D DE386517C (en) 1922-06-02 1922-06-02 Process for the production of sodium pyrosulfite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM77981D DE386517C (en) 1922-06-02 1922-06-02 Process for the production of sodium pyrosulfite

Publications (1)

Publication Number Publication Date
DE386517C true DE386517C (en) 1923-12-10

Family

ID=7317930

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM77981D Expired DE386517C (en) 1922-06-02 1922-06-02 Process for the production of sodium pyrosulfite

Country Status (1)

Country Link
DE (1) DE386517C (en)

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