DE2009647A1 - - Google Patents

Info

Publication number
DE2009647A1
DE2009647A1 DE19702009647 DE2009647A DE2009647A1 DE 2009647 A1 DE2009647 A1 DE 2009647A1 DE 19702009647 DE19702009647 DE 19702009647 DE 2009647 A DE2009647 A DE 2009647A DE 2009647 A1 DE2009647 A1 DE 2009647A1
Authority
DE
Germany
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.)
Withdrawn
Application number
DE19702009647
Other languages
German (de)
Inventor
W Binder
K Bogati
H Stich
W Gauster
J Hutter
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.)
OESTERR STICKSTOFFWERKE AG
Original Assignee
OESTERR STICKSTOFFWERKE 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
Priority to AT170170A priority Critical patent/AT297041B/de
Application filed by OESTERR STICKSTOFFWERKE AG filed Critical OESTERR STICKSTOFFWERKE AG
Priority to DE19702009647 priority patent/DE2009647A1/de
Priority to NL7018582A priority patent/NL7018582A/xx
Priority to ZA710309A priority patent/ZA71309B/xx
Priority to BR1106/71A priority patent/BR7101106D0/pt
Priority to BE763473A priority patent/BE763473A/xx
Priority to GB2123771A priority patent/GB1346933A/en
Publication of DE2009647A1 publication Critical patent/DE2009647A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/468—Purification of calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/08—Compounds containing halogen
    • C01B33/10—Compounds containing silicon, fluorine, and other elements
    • C01B33/103—Fluosilicic acid; Salts thereof
    • 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
    • C04B11/00—Calcium sulfate cements
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
    • 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
    • C04B11/00—Calcium sulfate cements
    • C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
DE19702009647 1970-02-25 1970-03-02 Withdrawn DE2009647A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT170170A AT297041B (de) 1970-02-25 1970-02-25 Verfahren zur Verminderung des Fluorgehaltes von Phosphorsäureabfallgips
DE19702009647 DE2009647A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-02-25 1970-03-02
NL7018582A NL7018582A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-02-25 1970-12-21
ZA710309A ZA71309B (en) 1970-02-25 1971-01-18 Improvements in or relating to the defluorination of gypsum
BR1106/71A BR7101106D0 (pt) 1970-02-25 1971-02-18 Processo para a producao do teor de fluor em gesso refugo do acido fosforico
BE763473A BE763473A (fr) 1970-02-25 1971-02-25 Procede pour diminuer la teneur en fluor du sulfate de calcium dihydrate de rebut precipite au cours de la production de l'acide phosphorique
GB2123771A GB1346933A (en) 1970-02-25 1971-04-19 Reduction to the fluorine content of gypsum

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT170170A AT297041B (de) 1970-02-25 1970-02-25 Verfahren zur Verminderung des Fluorgehaltes von Phosphorsäureabfallgips
DE19702009647 DE2009647A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-02-25 1970-03-02

Publications (1)

Publication Number Publication Date
DE2009647A1 true DE2009647A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1971-12-02

Family

ID=25596588

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702009647 Withdrawn DE2009647A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-02-25 1970-03-02

Country Status (7)

Country Link
AT (1) AT297041B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE763473A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR7101106D0 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2009647A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1346933A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL7018582A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ZA (1) ZA71309B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
BE763473A (fr) 1971-08-25
ZA71309B (en) 1972-08-30
GB1346933A (en) 1974-02-13
AT297041B (de) 1972-03-10
NL7018582A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1971-08-27
BR7101106D0 (pt) 1973-06-14

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee