GB1232689A - - Google Patents

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Publication number
GB1232689A
GB1232689A GB1232689DA GB1232689A GB 1232689 A GB1232689 A GB 1232689A GB 1232689D A GB1232689D A GB 1232689DA GB 1232689 A GB1232689 A GB 1232689A
Authority
GB
United Kingdom
Prior art keywords
iron
sulphur
roasting
sulphate
pyrites
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
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 filed Critical
Publication of GB1232689A publication Critical patent/GB1232689A/en
Expired legal-status Critical Current

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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
    • C01B17/52—Preparation of sulfur dioxide by roasting sulfides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Epoxy Compounds (AREA)

Abstract

1,232,689. Sulphur dioxide and iron oxide. GOSUDARSTVENNY NAUCHNO - ISSLEDOVATELSKY I PROEKTNY INSTITUT OSNOVNOI KHIMII. 8 Oct., 1968, No. 47644/68. Heading C1A. Sulphur dioxide is produced by roasting, e.g. at 700-800‹ C. a mixture of iron sulphate and iron pyrites, in which the weight ratio of sulphate sulphur to sulphide sulphur is 0À25 to 0À75:1, in air which is present in an amount of up to 1-3 times that theoretically required for the complete combustion of iron pyrites. The roasting is preferably carried out in, a fluidized bed. The iron oxide (Fe 2 O 3 ) which is formed during roasting may be periodically or continuously removed from the reaction zone.
GB1232689D 1968-10-08 1968-10-08 Expired GB1232689A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4764468 1968-10-08

Publications (1)

Publication Number Publication Date
GB1232689A true GB1232689A (en) 1971-05-19

Family

ID=10445751

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1232689D Expired GB1232689A (en) 1968-10-08 1968-10-08

Country Status (1)

Country Link
GB (1) GB1232689A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362607A2 (en) * 1988-10-01 1990-04-11 Bayer Ag Process for the preparation of sulphur dioxide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362607A2 (en) * 1988-10-01 1990-04-11 Bayer Ag Process for the preparation of sulphur dioxide
EP0362607A3 (en) * 1988-10-01 1991-07-03 Bayer Ag Process for the preparation of sulphur dioxide

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Legal Events

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