FR992231A - Improvements in the simultaneous production processes of sulfur dioxide and valuable products, from calcium sulphate, possibly with the addition of aluminous or silico-aluminous ores - Google Patents

Improvements in the simultaneous production processes of sulfur dioxide and valuable products, from calcium sulphate, possibly with the addition of aluminous or silico-aluminous ores

Info

Publication number
FR992231A
FR992231A FR992231DA FR992231A FR 992231 A FR992231 A FR 992231A FR 992231D A FR992231D A FR 992231DA FR 992231 A FR992231 A FR 992231A
Authority
FR
France
Prior art keywords
aluminous
silico
possibly
addition
sulfur dioxide
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
Other languages
French (fr)
Inventor
Jean-Charles Seailles
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
Application granted granted Critical
Publication of FR992231A publication Critical patent/FR992231A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/02—Portland cement
    • C04B7/04—Portland cement using raw materials containing gypsum, i.e. processes of the Mueller-Kuehne type
    • 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)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
FR992231D 1944-06-01 1944-06-01 Improvements in the simultaneous production processes of sulfur dioxide and valuable products, from calcium sulphate, possibly with the addition of aluminous or silico-aluminous ores Expired FR992231A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR992231T 1944-06-01

Publications (1)

Publication Number Publication Date
FR992231A true FR992231A (en) 1951-10-16

Family

ID=9554613

Family Applications (1)

Application Number Title Priority Date Filing Date
FR992231D Expired FR992231A (en) 1944-06-01 1944-06-01 Improvements in the simultaneous production processes of sulfur dioxide and valuable products, from calcium sulphate, possibly with the addition of aluminous or silico-aluminous ores

Country Status (2)

Country Link
FR (1) FR992231A (en)
GB (1) GB643479A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3607036A (en) * 1968-02-09 1971-09-21 Cities Service Co Recovery of sulfur from gypsum
US3607068A (en) * 1968-07-22 1971-09-21 Elcor Chem Corp Sulfur recovery process
CA1061987A (en) * 1974-05-15 1979-09-11 Iowa State University Research Foundation, Inc. Decomposition of calcium sulfate by zoned reduction and oxidation in a fluidized bed

Also Published As

Publication number Publication date
GB643479A (en) 1950-09-20

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