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DE411952C - Production of air-free sulphurous acid, ammonium chloride and sodium salts - Google Patents

Production of air-free sulphurous acid, ammonium chloride and sodium salts

Info

Publication number
DE411952C
DE411952C DES64765D DES0064765D DE411952C DE 411952 C DE411952 C DE 411952C DE S64765 D DES64765 D DE S64765D DE S0064765 D DES0064765 D DE S0064765D DE 411952 C DE411952 C DE 411952C
Authority
DE
Germany
Prior art keywords
ammonium chloride
air
production
sulphurous acid
sodium salts
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
DES64765D
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DES64765D priority Critical patent/DE411952C/en
Application granted granted Critical
Publication of DE411952C publication Critical patent/DE411952C/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
    • C01B17/60—Isolation of sulfur dioxide from gases

Landscapes

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

Description

Gewinnung von luftfreier schwefliger Säure, Ammoniumchlorid und Natriumsalzen. Gegenstand der Erfindung ist ein Verfahren zur Gewinnung von luftfreier schwefliger Säure, bei welchem gleichzeitig außer Ammoniumchlorid Natriumsalze, wie Natriumnitrat, Natriumphosphate o. dgl., gewonnen werden.Production of air-free sulphurous acid, ammonium chloride and sodium salts. The invention relates to a process for the production of air-free sulphurous Acid, in which, in addition to ammonium chloride, sodium salts such as sodium nitrate, Sodium phosphates or the like., Are obtained.

Man bringt lufthaltige schweflige Säure auf Ammoniak zur Einwirkung, wobei Ammoniumsulfit entsteht. Dieses Ammoniumsulfit wird mit Kochsalz zu Ammoniumchlorid und Natriumsulfit umgesetzt, wobei das Ammoniumchlorid in technisch reiner Form gewonnen werden kann. Man kann, wie auch zur Gewinnung von Ammoniumchlorid schon vorgeschlagen worden ist, Ammoniak und lufthaltige schweflige Säure in eine Kochsalzsuspension gleichzeitig einleiten, wobei Ammoniumchlorid und Natriumsulfit entstehen. Das Natriumsulfit wird mit Säuren, beispielsweise Salpetersäure, versetzt, wobei Natriumnitrat gewonnen wird. Die frei werdende schweflige Säure kann als luftfreie Säure beliebig benutzt, z. B. zur Herstellung von Bisulfiten, verwendet oder verflüssigt werden.Air-containing sulphurous acid is brought into action on ammonia, whereby ammonium sulfite is formed. This ammonium sulfite becomes ammonium chloride with common salt and sodium sulfite reacted, the ammonium chloride in technically pure form can be won. You can, as well as for the production of ammonium chloride It has been proposed to mix ammonia and aerated sulphurous acid in a saline suspension Introduce at the same time, whereby ammonium chloride and sodium sulfite are formed. The sodium sulfite Acids, for example nitric acid, are added, whereby sodium nitrate is obtained will. The sulfurous acid released can be used as an air-free acid, z. B. for the production of bisulfites, used or liquefied.

Das vorliegende Kombinationsverfahren ist in seinen einzelnen Elementen bekannt. Das Gesamtverfahren nach der Erfindung, das ermöglicht, mit einfachster Apparatur aus der rohen lufthaltigen schwefligen Säure (z. B. Röstgasen o. dgl.) die luftfreie Säure zu gewinnen, bietet den bisher üblichen Verfahren gegenüber, die mit umfangreicher Apparatur auf verhältnism§ßig kostspieligem Wege dieses Produkt herstellen, den Vorzug der Einfachheit und der Billigkeit. Die Wirtschaftlichkeit des Gesamtverfahrens wird dadurch gehoben, -daß einmal Ammoniumchlorid in technisch reiner Form gewonnen wird und daß außerdem aus dem intermediär entstehenden Natriumsulfit beliebige Natriumsalze durch Zersetzung mit den betreffenden Säuren erhalten werden, und zwar ohne Verwendung von Soda, wie dies sonst üblich ist. Das Gesamtverfahren liefert also als Nebenprodukt N atriumsalze, für die das Ausgangsmaterial Natriumcblorid und nicht die teure Soda bildet.The present combination procedure is in its individual elements known. The overall method according to the invention, which allows with the simplest Apparatus from the crude aerated sulphurous acid (e.g. roasting gases or the like) Obtaining the air-free acid offers the usual methods compared to Those with extensive equipment used this product in a relatively expensive way establish the virtue of simplicity and cheapness. The economy the overall process is raised by the fact that once ammonium chloride in technical pure form is obtained and that also from the intermediate sodium sulfite any sodium salts can be obtained by decomposition with the relevant acids, without the use of soda, as is usually the case. The overall process thus supplies sodium salts as a by-product, for which the starting material is sodium chloride and not the expensive soda forms.

Claims (1)

L ATENT-ANSPRUCII: Verfahren zur Gewinnung von luftfreier schwefliger Säure, dadurch gekennzeichnet, daß lufthaltige schweflige Säure auf Ammoniak einwirken gelassen, das entstandene Ammoniumsulfit mit Kochsalz unter Bildung von Ammoniumchlorid zu Natriumsulfit umgesetzt und das Natriumsulfit mit Säuren unter Bildung der entsprechenden Natriumsalze zersetzt wird. L ATENT-ANSPRUCII: Process for the production of air-free sulphurous acid, characterized in that aerated sulphurous acid is allowed to act on ammonia, the resulting ammonium sulphite is reacted with common salt to form ammonium chloride to form sodium sulphite and the sodium sulphite is decomposed with acids to form the corresponding sodium salts.
DES64765D 1924-01-15 1924-01-15 Production of air-free sulphurous acid, ammonium chloride and sodium salts Expired DE411952C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES64765D DE411952C (en) 1924-01-15 1924-01-15 Production of air-free sulphurous acid, ammonium chloride and sodium salts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES64765D DE411952C (en) 1924-01-15 1924-01-15 Production of air-free sulphurous acid, ammonium chloride and sodium salts

Publications (1)

Publication Number Publication Date
DE411952C true DE411952C (en) 1925-04-09

Family

ID=7497471

Family Applications (1)

Application Number Title Priority Date Filing Date
DES64765D Expired DE411952C (en) 1924-01-15 1924-01-15 Production of air-free sulphurous acid, ammonium chloride and sodium salts

Country Status (1)

Country Link
DE (1) DE411952C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU743533B2 (en) * 1998-03-04 2002-01-31 Rasmussen Gmbh Clampable pipe coupling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU743533B2 (en) * 1998-03-04 2002-01-31 Rasmussen Gmbh Clampable pipe coupling

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