GB348866A - An improvement relating to the purification of sulphuric acid - Google Patents

An improvement relating to the purification of sulphuric acid

Info

Publication number
GB348866A
GB348866A GB1391530A GB1391530A GB348866A GB 348866 A GB348866 A GB 348866A GB 1391530 A GB1391530 A GB 1391530A GB 1391530 A GB1391530 A GB 1391530A GB 348866 A GB348866 A GB 348866A
Authority
GB
United Kingdom
Prior art keywords
sulphuric acid
purification
improvement relating
relating
improvement
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
GB1391530A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB1391530A priority Critical patent/GB348866A/en
Publication of GB348866A publication Critical patent/GB348866A/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)
  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)

Abstract

Sulphuric acid having a concentration of higher than 60 per cent is freed from nitric acid constituents by adding a solution of sulphur dioxide in water or sulphuric acid and passing a current of indifferent gas, such as air or flue gas, through the resulting mixture at a raised temperature, say 100-200 DEG C.
GB1391530A 1930-05-06 1930-05-06 An improvement relating to the purification of sulphuric acid Expired GB348866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1391530A GB348866A (en) 1930-05-06 1930-05-06 An improvement relating to the purification of sulphuric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1391530A GB348866A (en) 1930-05-06 1930-05-06 An improvement relating to the purification of sulphuric acid

Publications (1)

Publication Number Publication Date
GB348866A true GB348866A (en) 1931-05-21

Family

ID=10031692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1391530A Expired GB348866A (en) 1930-05-06 1930-05-06 An improvement relating to the purification of sulphuric acid

Country Status (1)

Country Link
GB (1) GB348866A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955920A (en) * 1955-10-14 1960-10-11 Nat Distillers Chem Corp Decarbonization of spent acids
US4155989A (en) * 1977-11-14 1979-05-22 Ciba-Geigy Corporation Removal of nitric acid from nitric acid-sulfuric acid mixtures
WO1998002381A1 (en) * 1995-05-04 1998-01-22 Metallgesellschaft Aktiengesellschaft PROCESS FOR REMOVING NOx FROM NITROSYLSULPHURIC ACID
WO2000012429A1 (en) * 1998-09-01 2000-03-09 Metallgesellschaft Ag Method for removing nitrogen oxides from nitrosyl sulphuric acid
US6238639B1 (en) 1995-05-04 2001-05-29 Metallgesellschaft Aktiengesellschaft Process for removing NOx from nitrosylsulphuric acid

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955920A (en) * 1955-10-14 1960-10-11 Nat Distillers Chem Corp Decarbonization of spent acids
US4155989A (en) * 1977-11-14 1979-05-22 Ciba-Geigy Corporation Removal of nitric acid from nitric acid-sulfuric acid mixtures
WO1998002381A1 (en) * 1995-05-04 1998-01-22 Metallgesellschaft Aktiengesellschaft PROCESS FOR REMOVING NOx FROM NITROSYLSULPHURIC ACID
AU714625B2 (en) * 1995-05-04 2000-01-06 Outotec Oyj Process of removing NOx from nitrosyl hydrogensulfate
US6238639B1 (en) 1995-05-04 2001-05-29 Metallgesellschaft Aktiengesellschaft Process for removing NOx from nitrosylsulphuric acid
WO2000012429A1 (en) * 1998-09-01 2000-03-09 Metallgesellschaft Ag Method for removing nitrogen oxides from nitrosyl sulphuric acid

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