DE411103C - Denitration of sulfuric acid - Google Patents

Denitration of sulfuric acid

Info

Publication number
DE411103C
DE411103C DEB111402D DEB0111402D DE411103C DE 411103 C DE411103 C DE 411103C DE B111402 D DEB111402 D DE B111402D DE B0111402 D DEB0111402 D DE B0111402D DE 411103 C DE411103 C DE 411103C
Authority
DE
Germany
Prior art keywords
sulfuric acid
denitration
heated
residues
wood
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
DEB111402D
Other languages
German (de)
Inventor
Dr Christoph Beck
Dr Wilhelm Wild
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB111402D priority Critical patent/DE411103C/en
Application granted granted Critical
Publication of DE411103C publication Critical patent/DE411103C/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
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C01B17/94—Recovery from nitration acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Denitrierung von Schwefelsäure. Nitrosehaltige konzentrierte Schwefelsäure gibt bekanntlich die Stickoxyde äußerst schwer ab, z. B. auch nicht oder nur zum geringen Teil beim Erhitzen bis zum Siedepunkt, falls die Konzentratian der Säure über go° beträgt.Denitration of sulfuric acid. Concentrated sulfuric acid containing nitrous is known to give the nitrogen oxides extremely difficult, z. B. also not or only for small part when heated to boiling point, in case of acid concentration is above go °.

Es hat sich nun gezeigt, daß es möglich ist, konzentrierte Schwefelsäure, auch wenn ihre Stärke 9o Prozent und mehr beträgt, vollständig zu denitrieren, indem man sie unter Zugabe einer dem Gehalt an nitrosen Verbindungen angepaßten Menge einer kohlenstoffhaltigen Substänz von möglichst geringem Aschengehalt, wie Holz, Zellstoff, Torf, getrockneter Braunkohle, Rückständen der Teerdestillation, Grudekoks u. dgl., auf r oo bis zoo° erhitzt. Die denitrierte, meist etwas gefärbte Säure kann ohne weiteres für technische Zwecke verwendet werden.It has now been shown that it is possible to use concentrated sulfuric acid, even if their strength is 9o percent and more, completely denitrate by they are added in an amount adapted to the content of nitrous compounds a carbonaceous substance with the lowest possible ash content, such as wood, Cellulose, peat, dried brown coal, residues of tar distillation, grudecoke and the like, heated to r oo to zoo °. The denitrated, mostly slightly colored acid can easily be used for technical purposes.

Claims (1)

PATENT-ANSPRUcFI: Verfahren zur Denitrierung nitrosehaltiger konzentrierter Schwefelsäure, dadurch gekennzeichnet, daß man diese mit kohlenstoffhaltigen Substanzen, wie Holz, Zellstoff, Braunkohle, Rückständen der Teerdestillation, Grudekoks u. dgl., erhitzt.PATENT CLAIM: Process for the denitration of concentrated nitrous products Sulfuric acid, characterized in that it is mixed with carbonaceous substances, such as wood, cellulose, lignite, residues from tar distillation, Grudekoks and the like. Like., heated.
DEB111402D 1923-10-13 1923-10-13 Denitration of sulfuric acid Expired DE411103C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB111402D DE411103C (en) 1923-10-13 1923-10-13 Denitration of sulfuric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB111402D DE411103C (en) 1923-10-13 1923-10-13 Denitration of sulfuric acid

Publications (1)

Publication Number Publication Date
DE411103C true DE411103C (en) 1925-03-24

Family

ID=6992942

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB111402D Expired DE411103C (en) 1923-10-13 1923-10-13 Denitration of sulfuric acid

Country Status (1)

Country Link
DE (1) DE411103C (en)

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