BE801940A - Procede de preparation de sulfate de calcium synthetique pur a une demi-molecule d'eau - Google Patents

Procede de preparation de sulfate de calcium synthetique pur a une demi-molecule d'eau

Info

Publication number
BE801940A
BE801940A BE133138A BE133138A BE801940A BE 801940 A BE801940 A BE 801940A BE 133138 A BE133138 A BE 133138A BE 133138 A BE133138 A BE 133138A BE 801940 A BE801940 A BE 801940A
Authority
BE
Belgium
Prior art keywords
molecule
water
calcium sulphate
synthetic calcium
preparing pure
Prior art date
Application number
BE133138A
Other languages
English (en)
French (fr)
Inventor
H-F Kurandt
D 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
Publication of BE801940A publication Critical patent/BE801940A/xx

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
    • 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

Landscapes

  • 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)
BE133138A 1972-07-06 1973-07-05 Procede de preparation de sulfate de calcium synthetique pur a une demi-molecule d'eau BE801940A (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE801940A true BE801940A (fr) 1973-11-05

Family

ID=5849879

Family Applications (1)

Application Number Title Priority Date Filing Date
BE133138A BE801940A (fr) 1972-07-06 1973-07-05 Procede de preparation de sulfate de calcium synthetique pur a une demi-molecule d'eau

Country Status (10)

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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429686A (en) * 1963-10-15 1969-02-25 Stamicarbon Method of precipitating calcium sulfate from an acidulated phosphate rock slurry
LU49007A1 (sv) * 1965-07-07 1967-01-09

Also Published As

Publication number Publication date
FR2192068B1 (sv) 1978-02-10
ATA584073A (de) 1975-10-15
FI58768B (fi) 1980-12-31
NL7309394A (sv) 1974-01-08
JPS4969577A (sv) 1974-07-05
AT330808B (de) 1976-07-26
NL176771B (nl) 1985-01-02
DE2233189A1 (de) 1974-01-24
GB1445425A (en) 1976-08-11
NL176771C (nl) 1985-06-03
DE2233189C2 (de) 1986-06-26
SE391706B (sv) 1977-02-28
IT990926B (it) 1975-07-10
FR2192068A1 (sv) 1974-02-08
FI58768C (sv) 1988-08-03

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Legal Events

Date Code Title Description
CH Change of patent owner

Owner name: *RUHR-STICKSTOFF A.G.

Effective date: 19860127

RE Patent lapsed

Owner name: RUHR-STICKSTOFF A.G.

Effective date: 19890731