FI834667L - Foerfarande foer rekristallisering av gips. - Google Patents

Foerfarande foer rekristallisering av gips. Download PDF

Info

Publication number: FI834667L
Authority: FI; Finland
Prior art keywords: recrystallisering; gypsum; foerfarande foer; foerfarande; foer
Prior art date: 1982-12-22

Application number

FI834667A

Other languages

English (en)

Other versions

FI834667A0 (fi

FI834667A7 (fi

Inventor

Nils Eric Ferninand Kullenberg

Lars Erik Herbert Persson

Original Assignee

Boliden Ab

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.)

1982-12-22

Filing date

1983-12-19

Publication date

1984-06-23

1983-12-19 Application filed by Boliden Ab filed Critical Boliden Ab

1983-12-19 Publication of FI834667A0 publication Critical patent/FI834667A0/fi

1984-06-23 Publication of FI834667L publication Critical patent/FI834667L/fi

1984-06-23 Publication of FI834667A7 publication Critical patent/FI834667A7/fi

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
- C01F11/466—Conversion of one form of calcium sulfate to another

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Inorganic Chemistry (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

FI834667A 1982-12-22 1983-12-19 Menetelmä kipsin uudelleen kiteyttämiseksi. FI834667A7 (fi)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE8207343A SE440069B (sv)	1982-12-22	1982-12-22	Forfarande for omkristallisation av gips

Publications (3)

Publication Number	Publication Date
FI834667A0 FI834667A0 (fi)	1983-12-19
FI834667L true FI834667L (fi)	1984-06-23
FI834667A7 FI834667A7 (fi)	1984-06-23

Family

ID=20349106

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI834667A FI834667A7 (fi)	1982-12-22	1983-12-19	Menetelmä kipsin uudelleen kiteyttämiseksi.

Country Status (3)

Country	Link
EP (1)	EP0112317A1 (fi)
FI (1)	FI834667A7 (fi)
SE (1)	SE440069B (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3625186A1 (de) *	1986-07-25	1988-01-28	Knauf Westdeutsche Gips	Verfahren zur herstellung von abbindefaehigen calciumsulfaten und ihre verwendung
DE3605393C1 (en) *	1986-02-20	1987-09-03	Knauf Westdeutsche Gips	Process for the preparation of anhydrous calcium sulphate (anhydrite)
DE3714035A1 (de) *	1986-07-25	1988-11-24	Knauf Westdeutsche Gips	Verfahren zur herstellung von abbindefaehigen calciumsulfaten und ihre verwendung
FR2647433B1 (fr) *	1989-05-23	1991-10-31	Lafarge Coppee Da	Procede de preparation par voie aqueuse de sulfate de calcium purifie
CN114477818B (zh) *	2022-01-05	2024-01-19	中国科学院大学	一种常温常压下实现重金属石膏渣高效脱毒的方法
CN115924952B (zh) *	2022-12-14	2024-05-03	西南科技大学	硬石膏粉体、石膏晶须及其制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1943497A (en) *	1932-03-19	1934-01-16	Bichowsky Foord Von	Method for producing finely divided hydrated calcium sulphate
DE1118177B (de) *	1957-12-26	1961-11-30	Titan Gmbh	Verfahren zur Herstellung von pigmentfeinem Anhydrit
GB848617A (en) *	1957-12-26	1960-09-21	Nat Lead Co	Improvements in or relating to the preparation of anhydrite
LU49007A1 (fi) *	1965-07-07	1967-01-09
NL7812109A (nl) *	1978-12-13	1980-06-17	Stamicarbon	Werkwijze voor het bereiden van calciumsulfaat- anhydriet en calciumsulfaatanhydriet verkregen volgens deze werkwijze.
NL8004058A (nl) *	1980-07-15	1982-02-16	Stamicarbon	Werkwijze voor het bereiden van fosforzuur en calciumsulfaatanhydriet, alsmede fosforzuur en calciumsulfaatanhydriet verkregen volgens deze werkwijze.

1982
- 1982-12-22 SE SE8207343A patent/SE440069B/sv unknown
1983
- 1983-12-16 EP EP83850338A patent/EP0112317A1/en not_active Withdrawn
- 1983-12-19 FI FI834667A patent/FI834667A7/fi not_active Application Discontinuation

Also Published As

Publication number	Publication date
SE8207343D0 (sv)	1982-12-22
SE440069B (sv)	1985-07-15
FI834667A0 (fi)	1983-12-19
EP0112317A1 (en)	1984-06-27
FI834667A7 (fi)	1984-06-23
SE8207343L (sv)	1984-06-23

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Legal Events

Date	Code	Title	Description
2004-08-31	FA	Application withdrawn [patent]	Owner name: BOLIDEN AB