GB161581A - A process for the manufacture of sulphurous acid - Google Patents

A process for the manufacture of sulphurous acid

Info

Publication number
GB161581A
GB161581A GB1048921A GB1048921A GB161581A GB 161581 A GB161581 A GB 161581A GB 1048921 A GB1048921 A GB 1048921A GB 1048921 A GB1048921 A GB 1048921A GB 161581 A GB161581 A GB 161581A
Authority
GB
United Kingdom
Prior art keywords
ferric oxide
manufacture
mixture
sulphide
sulphurous acid
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
GB1048921A
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.)
Rhenania Verein Chemischer Fabriken AG
Original Assignee
Rhenania Verein Chemischer Fabriken 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 Rhenania Verein Chemischer Fabriken AG filed Critical Rhenania Verein Chemischer Fabriken AG
Publication of GB161581A publication Critical patent/GB161581A/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
    • C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
    • 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
    • C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
    • C01B17/506—Preparation of sulfur dioxide by reduction of sulfur compounds of calcium sulfates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Treating Waste Gases (AREA)
  • Compounds Of Iron (AREA)
  • Gas Separation By Absorption (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Sulphur dioxide is obtained by heating a mixture of an alkaline earth (including magnesium) sulphate, a sulphide of a heavy metal, and ferric oxide, or a substance containing ferric oxide; it being arranged that there are 1.5 to 3 molecules of ferric oxide in the mixture to every atom of sulphide sulphur. In an example, gypsum pyrites and ferric oxide are heated to 900-950 DEG C., so long as sulphur dioxide is evolved. The Specification as open to inspection under Sect. 91 (3) (a) is not limited to the above proportions. This subject-matter does not appear in the Specification as accepted.
GB1048921A 1919-04-17 1921-04-09 A process for the manufacture of sulphurous acid Expired GB161581A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEV14668D DE386295C (en) 1919-04-17 1919-04-17 Process for the production of sulphurous acid
DEV14875D DE394362C (en) 1919-04-17 1919-08-09 Process for the production of sulfur dioxide from the sulphates of the alkaline earths, magnesium or iron
DEV15204D DE391603C (en) 1919-04-17 1920-01-06 Process for the production of sulphurous acid by heating sulphates of the alkaline earths
DE352125T 1920-04-15

Publications (1)

Publication Number Publication Date
GB161581A true GB161581A (en) 1922-09-11

Family

ID=40344694

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1970520A Expired GB149662A (en) 1919-04-17 1920-07-08 Improved manufacture of sulphur dioxide by heating sulphates of alkaline earths magnesium and iron
GB1048921A Expired GB161581A (en) 1919-04-17 1921-04-09 A process for the manufacture of sulphurous acid

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1970520A Expired GB149662A (en) 1919-04-17 1920-07-08 Improved manufacture of sulphur dioxide by heating sulphates of alkaline earths magnesium and iron

Country Status (3)

Country Link
DE (6) DE386295C (en)
FR (1) FR519787A (en)
GB (2) GB149662A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425740A (en) * 1943-07-28 1947-08-19 Smidth & Co As F L Reduction of sulphates
US2766102A (en) * 1948-12-23 1956-10-09 Exxon Research Engineering Co Production of sulfur dioxide
US2858191A (en) * 1950-08-08 1958-10-28 Basf Ag Production of gases rich in sulfur dioxide suitable for working up into sulfuric acid

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424937A (en) * 1943-02-22 1947-07-29 United States Gypsum Co Incendiary composition
US3729551A (en) * 1971-01-07 1973-04-24 Cons Coal Co Conversion of calcium sulfate to calcium oxide and elemental sulfur
ES478382A1 (en) * 1978-04-02 1979-11-01 Abdel Fattah Sabry Hosein Kame Process for recovering sulphuric acid from natural gypsum or phospho-gypsum.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425740A (en) * 1943-07-28 1947-08-19 Smidth & Co As F L Reduction of sulphates
US2766102A (en) * 1948-12-23 1956-10-09 Exxon Research Engineering Co Production of sulfur dioxide
US2858191A (en) * 1950-08-08 1958-10-28 Basf Ag Production of gases rich in sulfur dioxide suitable for working up into sulfuric acid

Also Published As

Publication number Publication date
DE386295C (en) 1923-12-07
DE352125C (en) 1922-04-21
DE391603C (en) 1924-03-08
FR519787A (en) 1921-06-15
DE375872C (en) 1923-05-19
GB149662A (en) 1921-11-08
DE391602C (en) 1924-03-08
DE394362C (en) 1924-04-24

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