GB891422A - Process for extracting sulphur dioxide from gas which contains it - Google Patents

Process for extracting sulphur dioxide from gas which contains it

Info

Publication number
GB891422A
GB891422A GB1684/60A GB168460A GB891422A GB 891422 A GB891422 A GB 891422A GB 1684/60 A GB1684/60 A GB 1684/60A GB 168460 A GB168460 A GB 168460A GB 891422 A GB891422 A GB 891422A
Authority
GB
United Kingdom
Prior art keywords
gas
solution
sulphur dioxide
glyoxal
contain
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
GB1684/60A
Inventor
Henri Georges Louis Marcheguet
Louis Gandon
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.)
Nobel Bozel SA
Original Assignee
Nobel Bozel SA
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 Nobel Bozel SA filed Critical Nobel Bozel SA
Publication of GB891422A publication Critical patent/GB891422A/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)
  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)

Abstract

SO2 is recovered from gases by contacting with an aqueous solution of glyoxal at below 50 DEG C., e.g. 15 DEG -30 DEG C., and subsequently heating at above 50 DEG C., e.g. 65 DEG -75 DEG C. The gas may contain 6-20% SO2 with air, CO2, HCl, SO3, or hydrocarbons. The solution may contain 1-60% glyoxal and should be cooled during contact. It is advantageous not to completely exhaust SO2 from the solution during heating and the process may be cyclic. 1,2-Dihydroxy-1,2-ethane disulphonic acid is stated to be formed in the solution and decomposed. Specification 891,421 is referred to.
GB1684/60A 1959-02-02 1960-01-18 Process for extracting sulphur dioxide from gas which contains it Expired GB891422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR891422X 1959-02-02

Publications (1)

Publication Number Publication Date
GB891422A true GB891422A (en) 1962-03-14

Family

ID=9386924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1684/60A Expired GB891422A (en) 1959-02-02 1960-01-18 Process for extracting sulphur dioxide from gas which contains it

Country Status (1)

Country Link
GB (1) GB891422A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000017290A1 (en) * 1998-09-22 2000-03-30 Horst Kief Glyoxal as fuel additive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000017290A1 (en) * 1998-09-22 2000-03-30 Horst Kief Glyoxal as fuel additive

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