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DE283601C - - Google Patents

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Publication number
DE283601C
DE283601C DENDAT283601D DE283601DA DE283601C DE 283601 C DE283601 C DE 283601C DE NDAT283601 D DENDAT283601 D DE NDAT283601D DE 283601D A DE283601D A DE 283601DA DE 283601 C DE283601 C DE 283601C
Authority
DE
Germany
Prior art keywords
sulfuric acid
regeneration
solution
air
hydrogen sulfide
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.)
Active
Application number
DENDAT283601D
Other languages
German (de)
Publication of DE283601C publication Critical patent/DE283601C/de
Active legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10KPURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00Purifying combustible gases containing carbon monoxide
    • C10K1/08Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C10K1/10Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
    • C10K1/105Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids containing metal compounds other than alkali- or earth-alkali carbonates, -hydroxides, oxides, or salts of inorganic acids derived from sulfur
    • C10K1/106Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids containing metal compounds other than alkali- or earth-alkali carbonates, -hydroxides, oxides, or salts of inorganic acids derived from sulfur containing Fe compounds

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

in WIEN. ■ " ■in Vienna. ■ "■

Bisher konnte Schwefelwasserstoff durch Ferrisalze nur zu Schwefel oxydiert werden. Es hat sich jedoch gezeigt, daß wider Erwarten beim Einleiten schwefelwasserstoffhaltiger Gase in eine heiße, zweckmäßig stark schwefelsaure Ferrisulfatlösung, wenn abwechselnd oder gleichzeitig die Regeneration des gebildeten Ferrosulfates durch Luft oder Sauerstoff erfolgt, eine Oxydation zu SchwefelsäureSo far, hydrogen sulfide could only be oxidized to sulfur by ferric salts. However, it has been shown that, contrary to expectations, when introducing hydrogen sulfide-containing Gases in a hot, expediently strong sulfuric acid ferric sulfate solution, if alternately or at the same time the regeneration of the ferrous sulphate formed by air or oxygen occurs, an oxidation to sulfuric acid

ίο ohne Abscheidung von Schwefel stattfindet. Durch Einblasen von Luft oder Sauerstoff oder Oxydation auf andere Art wird das Ferrisulfat wieder regeneriert, und der primär ausgeschiedene Schwefel wird in der Wärme in der Schwefelsäure unter deren teilweiser Reduktion zu schwefliger Säure gelöst nach der Gleichungίο takes place without separation of sulfur. The ferric sulphate is made by blowing in air or oxygen or by oxidation in some other way regenerated again, and the primarily separated sulfur is in the heat in the sulfuric acid with its partial reduction to sulphurous acid solved according to the equation

2 (H2 S O4) + S + H2 O = 3 (H2 S O3).2 (H 2 SO 4 ) + S + H 2 O = 3 (H 2 SO 3 ).

Die schweflige Säure reduziert wieder das Ferri-Ion und wird dabei selbst zu Schwefelsäure oxydiert. Selbstverständlich gehen die beiden Reaktionen nebeneinander vor sich, und auch die Regeneration erfolgt nicht zeitlich verschieden. Die hierdurch gewonnene Schwefelsäure ist eisenhaltig und. kann entweder als solche verwendet oder zur Ammoniakbindung herangezogen werden, wobei man, wenn der Neutralisationspunkt erreicht ist, das nunmehr bestehen bleibende Eisensulfid vom Ammoniumsulfat trennen kann. Die Regeneration des Eisensulfides erfolgt durch neuerliches Aufgeben in die Oxydationslösung. The sulphurous acid reduces the ferric ion again and becomes sulfuric acid itself oxidized. Of course, the two reactions take place side by side, and the regeneration does not differ in time either. The resulting Sulfuric acid is ferrous and. can either be used as such or to bind ammonia can be used, with one when the neutralization point is reached is, the now existing iron sulfide can separate from the ammonium sulfate. The iron sulfide is regenerated by adding it again to the oxidation solution.

Claims (1)

Patent-Anspruch :Patent claim: 2525th 3030th 3535 Verfahren zur Überführung des Schwefelwasserstoffes aus Destillationsgasen in Schwefelsäure oder deren Salze, dadurch gekennzeichnet, daß man das zu reinigende Gas mit ,warmer Ferrisulfatlösung behandelt, die Schwefelsäure im Überschuß enthält, und die Regeneration der Lösung durch Einblasen von Luft oder durch ein anderes Oxydationsmittel bewirkt.Process for converting hydrogen sulfide from distillation gases into sulfuric acid or their salts, characterized in that the gas to be cleaned is treated with warm ferric sulfate solution, the sulfuric acid contains in excess, and the regeneration of the solution by Injection of air or caused by another oxidizing agent.
DENDAT283601D Active DE283601C (en)

Publications (1)

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