DE398308C - Process for the production of sulphurous acid from kieserite - Google Patents

Process for the production of sulphurous acid from kieserite

Info

Publication number
DE398308C
DE398308C DEH89731D DEH0089731D DE398308C DE 398308 C DE398308 C DE 398308C DE H89731 D DEH89731 D DE H89731D DE H0089731 D DEH0089731 D DE H0089731D DE 398308 C DE398308 C DE 398308C
Authority
DE
Germany
Prior art keywords
kieserite
production
sulphurous acid
sulfur
air
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
DEH89731D
Other languages
German (de)
Inventor
Dr Karl Eugen Spanier
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.)
Heetfeld & Co
Original Assignee
Heetfeld & Co
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 Heetfeld & Co filed Critical Heetfeld & Co
Priority to DEH89731D priority Critical patent/DE398308C/en
Application granted granted Critical
Publication of DE398308C publication Critical patent/DE398308C/en
Expired legal-status Critical Current

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
    • C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)

Description

Verfahren zur Herstellung von schwefliger Säure aus Kieserit. Kieserit (Magnesiumsulfat) wird in großen Mengen als ein lästiges Abfallprodukt in den Kalifabriken gewonnen. Man hat sich seit längerer Zeit bemüht, die in dem Kieserit enthaltene Schwefelsäure zu gewinnen und hat zu diesem Zwecke denselben mittels Kohlenstoff reduziert. Dabei entsteht elementarer Schwefel, der sich verflüchtigt. Die Erfindung besteht nun darin, daß man den bei der Reduktion sich bildenden elementaren Schwefel verbrennt, und zwar derart, daß man an einer noch genügend heißen Stelle des Apparats, in welchem die Reduktion vorgenommen wird, Luft bzw. Sauerstoff einleitet zu einem Zeitpunkte, wo der sich verflüchtigende Schwefel sich noch in der Schwebe befindet und noch nicht abgesetzt hat. Um zu verhindern, daß dieser Schwefel sich vorzeitig entzündet, soll die Reduktion in einer von außen heizbaren Vertikalretorte vorgenommen werden, aus welcher der gebildete und sich verflüchtigendeSchwefel mittels eines Helmes o. dgl. abgeleitet wird. An einer geeigneten noch heißen Stelle des Abzugskanals wird Luft oder Sauerstoff zugeleitet, so daß der Schwefel zu schwefliger Säure verbrennt, die alsdann in bekannter Weise in Schwefelsäure übergeführt wird. Man kann auch an der Stelle, wo die Luft bzw. der Sauerstoff eingeführt wird, Vorrichtungen anbringen, daß der in Dampfform befindliche Schwefel sich mit der Luft innig vermischt, und zwar kann dies beispielsweise durch Anordnung von Füllkörpern o. dgl. in dem Abzugsrohre erfolgen. Auch kann man schließlich die Luft tangential in den Abzugskanal einführen, so daß eine Wirbelung der Gase erfolgt, welche gleichfalls eine innige Vermischung der Luft mit den Schwefeldämpfen herbeiführt.Process for the production of sulphurous acid from kieserite. Kieserite (Magnesium Sulphate) is used in large quantities as an annoying waste product in the potash factories won. Efforts have been made for a long time to find those contained in the kieserite To obtain sulfuric acid and has for this purpose the same by means of carbon reduced. This creates elemental sulfur, which evaporates. The invention consists in removing the elemental sulfur formed during the reduction burns in such a way that at a sufficiently hot point on the apparatus, in which the reduction is carried out, introducing air or oxygen to one Points in time when the volatilizing sulfur is still in suspension and has not yet discontinued. To prevent this sulfur from getting prematurely ignited, the reduction should be carried out in a vertical retort that can be heated from the outside from which the formed and volatilized sulfur by means of a Helmet o. The like. Is derived. At a suitable, still hot point of the flue duct if air or oxygen is supplied so that the sulfur burns to sulphurous acid, which is then converted into sulfuric acid in a known manner. One can also attach devices at the point where the air or oxygen is introduced, that the sulfur in vapor form mixes intimately with the air, and although this can be done, for example, by arranging fillers or the like in the flue pipes take place. Finally, you can also introduce the air tangentially into the exhaust duct, so that the gases are swirled, which also results in an intimate mixing the air with the sulfur vapors brings about.

Claims (1)

PATENT-ANspRucl3: Verfahren zur Herstellung von schwefliger Säure aus Kieserit unter Verwendung von Kohle, dadurch gekennzeichnet, daß man die Reduktion in einer von außen 1-,eheizten Vertikalretorte vornimmt und den bei der Reduktion sich bildenden und verflüchtigenden elementaren Schwefel an einer noch genügend heißen Stelle des Abzugskanals durch Einleiten von Luft bzw. Sauerstoff verbrennt, während er sich als Dampf noch in der Schwebe befindet und noch nicht abgesetzt hat.PATENT-ANspRucl3: Process for the production of sulphurous acid from kieserite using coal, characterized in that the reduction in an externally 1, heated vertical retort and the reduction forming and volatilizing elemental sulfur in one still sufficient the hot part of the flue is burned by the introduction of air or oxygen, while it is still in suspension as vapor and has not yet been released Has.
DEH89731D 1922-05-05 1922-05-05 Process for the production of sulphurous acid from kieserite Expired DE398308C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH89731D DE398308C (en) 1922-05-05 1922-05-05 Process for the production of sulphurous acid from kieserite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH89731D DE398308C (en) 1922-05-05 1922-05-05 Process for the production of sulphurous acid from kieserite

Publications (1)

Publication Number Publication Date
DE398308C true DE398308C (en) 1924-07-07

Family

ID=7165678

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH89731D Expired DE398308C (en) 1922-05-05 1922-05-05 Process for the production of sulphurous acid from kieserite

Country Status (1)

Country Link
DE (1) DE398308C (en)

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