CH255609A - Process for the production of sulfur dioxide. - Google Patents

Process for the production of sulfur dioxide.

Info

Publication number
CH255609A
CH255609A CH255609DA CH255609A CH 255609 A CH255609 A CH 255609A CH 255609D A CH255609D A CH 255609DA CH 255609 A CH255609 A CH 255609A
Authority
CH
Switzerland
Prior art keywords
production
sulfur dioxide
sulfur
practically pure
oleum
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH255609A publication Critical patent/CH255609A/en

Links

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
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Description

  

      Verfahren        zur        Herstellung    von     Schwefeldioxyd.            Gegenstand    des Hauptpatentes     Nr.24798?     ist ein Verfahren zur Herstellung von Schwe  feldioxyd, bei     welchem    man     barförmiges          Seh-,vefeltrioxyd    mit festem Schwefel zur       RFaktion    bringt.  



  Es     wurde    nun befunden, dass dieses Ver  fahren zur     Herstellung-    von Schwefeldioxyd  besonders vorteilhaft     durchgeführt        werden     kann., wenn man praktisch reines     -asförmi-          bes        Sehwefeltrioxyd    verwendet.

   Dieses zur  Durchführung des     vorliegenden    Verfahrens       benötigte,    praktisch reine     Schwefeltrioxyd     kann in     üblicher    Weise durch Destillation  von     Oleum    erhalten werden, da mit der De  stillation des     Oleums    auch eine     Reinigung     verbunden ist, so dass das anfallende gas  förmige     Schwefeltrioxyd    in genübend reiner  Form vorliegt.  



  Das Verfahren kann im     übrigen        na-eh    den       Angaben    des Hauptpatentes     zweckmässig-          unter    Verwendung eines im Hauptpatent be-         schriebenen    turmartigen, mit brockenförmi  gem Schwefel beschickten und     zweckmässig-          auch        gekühlten        Reaktionsgefässes    durchge  führt werden, in das man     Schwefeltrzoxyd     einleitet und aus dem man das erhaltene  Schwefeldioxyd abzieht.



      Process for the production of sulfur dioxide. Subject of the main patent No. 24798? is a process for the production of sulfur dioxide, in which one brings bar-shaped seh-, vefeltrioxyd to the RFaction with solid sulfur.



  It has now been found that this process for the production of sulfur dioxide can be carried out particularly advantageously when practically pure -asiform sehulphuric oxide is used.

   This practically pure sulfur trioxide required to carry out the present process can be obtained in the usual way by distilling oleum, since the distillation of the oleum also involves purification, so that the resulting gaseous sulfur trioxide is present in practically pure form.



  The process can also be carried out according to the information in the main patent, using a tower-like reaction vessel described in the main patent, charged with lump-shaped sulfur and expediently also cooled, into which sulfur oxide is introduced and from which the obtained is carried out Sulfur dioxide withdraws.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Schwefel dioxyd gemäss Patentanspruch des Haupt patentes, dadurch gekennzeichnet, dass man praktisch reines gasförmiges Schwefeltrioxyd verwendet. UNTERANSPRUCH: Verfahren gemäss, Patentanspruch, da durch gekennzeichnet, dass man durch De stillation von Oleum erhaltenes, praktisch reines Schwefeltrioxy d in ein turmartiges, mit brockenförmigem Schwefel beschicktes Reaktionsgefäss einleitet. PATENT CLAIM: Process for the production of sulfur dioxide according to the claim of the main patent, characterized in that practically pure gaseous sulfur trioxide is used. SUBSTANTIAL CLAIM: Process according to claim, characterized in that practically pure sulfur trioxide obtained by distillation of oleum is introduced into a tower-like reaction vessel charged with lump-shaped sulfur.
CH255609D 1946-05-17 1946-05-17 Process for the production of sulfur dioxide. CH255609A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH247982T 1946-05-17
CH255609T 1946-05-17

Publications (1)

Publication Number Publication Date
CH255609A true CH255609A (en) 1948-06-30

Family

ID=25729251

Family Applications (1)

Application Number Title Priority Date Filing Date
CH255609D CH255609A (en) 1946-05-17 1946-05-17 Process for the production of sulfur dioxide.

Country Status (1)

Country Link
CH (1) CH255609A (en)

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