FI58768C - Foerfarande foer framstaellning av rent syntetiskt kalciumsulfathemihydrat av ett orent, fosfathaltigt och fuktigt kalciumsulfatslam. - Google Patents

Foerfarande foer framstaellning av rent syntetiskt kalciumsulfathemihydrat av ett orent, fosfathaltigt och fuktigt kalciumsulfatslam. Download PDF

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Publication number
FI58768C
FI58768C FI215873A FI215873A FI58768C FI 58768 C FI58768 C FI 58768C FI 215873 A FI215873 A FI 215873A FI 215873 A FI215873 A FI 215873A FI 58768 C FI58768 C FI 58768C
Authority
FI
Finland
Prior art keywords
hemihydrate
nitric acid
hno
calcium sulphate
gypsum
Prior art date
Application number
FI215873A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI58768B (fi
Inventor
Hans-Friedrich Kurandt
Dietrich Schliephake
Original Assignee
Veba Chemie 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 Veba Chemie Ag filed Critical Veba Chemie Ag
Application granted granted Critical
Publication of FI58768B publication Critical patent/FI58768B/fi
Publication of FI58768C publication Critical patent/FI58768C/fi

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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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Fertilizers (AREA)
FI215873A 1972-07-06 1973-07-05 Foerfarande foer framstaellning av rent syntetiskt kalciumsulfathemihydrat av ett orent, fosfathaltigt och fuktigt kalciumsulfatslam. FI58768C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722233189 DE2233189C2 (de) 1972-07-06 1972-07-06 Verfahren zur Herstellung von reinem Calciumsulfathalbhydrat
DE2233189 1972-07-06

Publications (2)

Publication Number Publication Date
FI58768B FI58768B (fi) 1980-12-31
FI58768C true FI58768C (fi) 1988-08-03

Family

ID=5849879

Family Applications (1)

Application Number Title Priority Date Filing Date
FI215873A FI58768C (fi) 1972-07-06 1973-07-05 Foerfarande foer framstaellning av rent syntetiskt kalciumsulfathemihydrat av ett orent, fosfathaltigt och fuktigt kalciumsulfatslam.

Country Status (10)

Country Link
JP (1) JPS4969577A (de)
AT (1) AT330808B (de)
BE (1) BE801940A (de)
DE (1) DE2233189C2 (de)
FI (1) FI58768C (de)
FR (1) FR2192068B1 (de)
GB (1) GB1445425A (de)
IT (1) IT990926B (de)
NL (1) NL176771C (de)
SE (1) SE391706B (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1592778B2 (de) * 1963-10-15 1976-02-12 Stamicarbon B.V., Heerlen (Niederlande) Verfahren zur herstellung eines stickstoff- und phosphathaltigen duengemittels
LU49007A1 (de) * 1965-07-07 1967-01-09

Also Published As

Publication number Publication date
JPS4969577A (de) 1974-07-05
AT330808B (de) 1976-07-26
NL176771C (nl) 1985-06-03
SE391706B (sv) 1977-02-28
DE2233189C2 (de) 1986-06-26
GB1445425A (en) 1976-08-11
DE2233189A1 (de) 1974-01-24
IT990926B (it) 1975-07-10
NL176771B (nl) 1985-01-02
NL7309394A (de) 1974-01-08
FR2192068A1 (de) 1974-02-08
FR2192068B1 (de) 1978-02-10
ATA584073A (de) 1975-10-15
BE801940A (fr) 1973-11-05
FI58768B (fi) 1980-12-31

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