DE426386C - Production of sulphite liquor - Google Patents

Production of sulphite liquor

Info

Publication number
DE426386C
DE426386C DEL62350D DEL0062350D DE426386C DE 426386 C DE426386 C DE 426386C DE L62350 D DEL62350 D DE L62350D DE L0062350 D DEL0062350 D DE L0062350D DE 426386 C DE426386 C DE 426386C
Authority
DE
Germany
Prior art keywords
production
sulphite liquor
gases
arsenic
selenium
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
DEL62350D
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.)
LURGI APPBAU GmbH
Original Assignee
LURGI APPBAU GmbH
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 LURGI APPBAU GmbH filed Critical LURGI APPBAU GmbH
Priority to DEL62350D priority Critical patent/DE426386C/en
Application granted granted Critical
Publication of DE426386C publication Critical patent/DE426386C/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

Landscapes

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

Description

Herstellung von Sulfitlauge. Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Sulfitlauge unter Verwendung von Schwefelöfen und. Kühlung der Ofengase. Die gekühlten Gase aus den in bekannter Weise mit Schwefel beschickten Ofen sind häufig stark seien- und arsenhaltig und geben-infolgedessen zu Anständen Anlaß, weil bekanntlich insbesondere Selen die Güte des Endproduktes (Papier) durch Fleckenbildung stark beeinträchtigt. Zum Zwecke der Selen-und Arsenabscheidung werden deshalb gemäß der Erfindung die den Kühler verlassenden Ofengase einer elektrischen Niederschlagsvorrichtung an sich bekannter Art zugeführt. In dieser werden die Gase nicht nur von Selen und Arsen, sondern auch von S03 und Schwefelsäure vollständig befreit und ergeben so ein für die Herstellung von Sulfitlauge einwandfreies Reingas. Da S03 nicht mehr in die Absorptionstürme gelangen kann, hat das Verfahren noch den weiteren Vorteil, daß Verstopfungen und Betriebsstörungen durch Gipsbildung in den Türmen mit Sicherheit vermieden werden.Production of sulphite liquor. The invention relates to a method for the production of sulphite liquor using sulfur furnaces and. Cooling the Furnace gases. The cooled gases from those charged with sulfur in a known manner Furnaces are often strong and contain arsenic and consequently give rise to propriety Occasion because it is well known that selenium in particular affects the quality of the end product (paper) Spotting severely impaired. For the purpose of selenium and arsenic separation therefore, according to the invention, the furnace gases leaving the cooler are an electrical one Precipitation device supplied per se known type. In this are the gases not only from selenium and arsenic, but also completely from SO3 and sulfuric acid freed and thus result in a clean gas that is perfect for the production of sulphite liquor. Since S03 can no longer get into the absorption towers, the process still has the further advantage that blockages and malfunctions due to gypsum formation to be avoided in the towers with certainty.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Sulfitlauge unter Verwendung von Schwefelöfen und Kühlung der Ofengase, dadurch gekennzeichnet, daß die gekühlten Gase zwecks Selen- und Arsenabscheidung durch eine an sich bekannte elektrische Niederschlagsvorrichtung geleitet werden. Claim: Process for the production of sulphite liquor using sulfur furnaces and cooling of the furnace gases, characterized in that the cooled gases are passed through an electric precipitation device known per se for the purpose of separating selenium and arsenic.
DEL62350D 1925-02-08 1925-02-08 Production of sulphite liquor Expired DE426386C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL62350D DE426386C (en) 1925-02-08 1925-02-08 Production of sulphite liquor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL62350D DE426386C (en) 1925-02-08 1925-02-08 Production of sulphite liquor

Publications (1)

Publication Number Publication Date
DE426386C true DE426386C (en) 1926-03-06

Family

ID=7280578

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL62350D Expired DE426386C (en) 1925-02-08 1925-02-08 Production of sulphite liquor

Country Status (1)

Country Link
DE (1) DE426386C (en)

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