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GB1280624A - Improvements in or relating to the purification of sulphuric acid - Google Patents

Improvements in or relating to the purification of sulphuric acid

Info

Publication number
GB1280624A
GB1280624A GB728070A GB728070A GB1280624A GB 1280624 A GB1280624 A GB 1280624A GB 728070 A GB728070 A GB 728070A GB 728070 A GB728070 A GB 728070A GB 1280624 A GB1280624 A GB 1280624A
Authority
GB
United Kingdom
Prior art keywords
purification
relating
sulphuric acid
carbonaceous impurities
nsc
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
GB728070A
Inventor
Leopold Moller
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.)
Imperial Smelting Corp Ltd
Imperial Smelting Corp NSC Ltd
Original Assignee
Imperial Smelting Corp Ltd
Imperial Smelting Corp NSC Ltd
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 Imperial Smelting Corp Ltd, Imperial Smelting Corp NSC Ltd filed Critical Imperial Smelting Corp Ltd
Priority to GB728070A priority Critical patent/GB1280624A/en
Publication of GB1280624A publication Critical patent/GB1280624A/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
    • C01B17/905—Removal of organic impurities

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

1280624 Purifying H 2 SO 4 IMPERIAL SMELTING CORP (NSC) Ltd 19 April 1971 [16 Feb 1970] 7280/70 Heading C1A H 2 SO 4 of 90-100% concentration, containing carbonaceous impurities, is purified by heating at above 300‹ C., preferably 310-325‹ C., for more than 1 min., e.g. 20-40 mins. The H 2 SO 4 is obtained by roasting sulphidic ores to give SO 2 which is catalytically converted to SO 3 and absorbed, the carbonaceous impurities being derived from organic floatation surfactants or from the coal or oil used as fuel. Suitable apparatus materials are listed.
GB728070A 1970-02-16 1970-02-16 Improvements in or relating to the purification of sulphuric acid Expired GB1280624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB728070A GB1280624A (en) 1970-02-16 1970-02-16 Improvements in or relating to the purification of sulphuric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB728070A GB1280624A (en) 1970-02-16 1970-02-16 Improvements in or relating to the purification of sulphuric acid

Publications (1)

Publication Number Publication Date
GB1280624A true GB1280624A (en) 1972-07-05

Family

ID=9830068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB728070A Expired GB1280624A (en) 1970-02-16 1970-02-16 Improvements in or relating to the purification of sulphuric acid

Country Status (1)

Country Link
GB (1) GB1280624A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022473A1 (en) * 1979-06-13 1981-01-21 Bayer Ag Process and apparatus for regenerating sulphuric acid
US4576813A (en) * 1983-07-05 1986-03-18 Monsanto Company Heat recovery from concentrated sulfuric acid
US4670242A (en) * 1984-11-09 1987-06-02 Monsanto Company Heat recovery from concentrated sulfuric acid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022473A1 (en) * 1979-06-13 1981-01-21 Bayer Ag Process and apparatus for regenerating sulphuric acid
US4576813A (en) * 1983-07-05 1986-03-18 Monsanto Company Heat recovery from concentrated sulfuric acid
US4670242A (en) * 1984-11-09 1987-06-02 Monsanto Company Heat recovery from concentrated sulfuric acid

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees