FR2497190B2 - Procede pour la production d'un melange anhydrite-gypse a base de sulfate de calcium dihydrate synthetique en fines particules - Google Patents

Procede pour la production d'un melange anhydrite-gypse a base de sulfate de calcium dihydrate synthetique en fines particules

Info

Publication number: FR2497190B2
Authority: FR; France
Prior art keywords: anhydrite; production; fine particle; calcium sulphate; mixture based
Prior art date: 1980-10-29
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

FR8120352A

Other languages

English (en)

Other versions

FR2497190A2 (fr

Inventor

Franz Wirsching

Rolf Huller

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.)

Knauf Gips KG

Original Assignee

Gebr Knauf Westdeutsche Gipswerke

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.)

1980-10-29

Filing date

1981-10-29

Publication date

1986-02-28

1980-10-29 Priority claimed from DE19803040688 external-priority patent/DE3040688C2/de

1981-10-29 Application filed by Gebr Knauf Westdeutsche Gipswerke filed Critical Gebr Knauf Westdeutsche Gipswerke

1982-07-02 Publication of FR2497190A2 publication Critical patent/FR2497190A2/fr

1986-02-28 Application granted granted Critical

1986-02-28 Publication of FR2497190B2 publication Critical patent/FR2497190B2/fr

Status Expired legal-status Critical Current

Links

PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title 1
239000010419 fine particle Substances 0.000 title 1
229910052602 gypsum Inorganic materials 0.000 title 1
239000010440 gypsum Substances 0.000 title 1
239000000203 mixture Substances 0.000 title 1

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
- 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
- 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
- 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
- C04B11/06—Calcium sulfate cements starting from anhydrite
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Ceramic Engineering (AREA)
Organic Chemistry (AREA)
Materials Engineering (AREA)
Structural Engineering (AREA)
Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Inorganic Chemistry (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

FR8120352A 1980-10-29 1981-10-29 Procede pour la production d'un melange anhydrite-gypse a base de sulfate de calcium dihydrate synthetique en fines particules Expired FR2497190B2 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19803040688 DE3040688C2 (de)	1979-02-03	1980-10-29	Verfahren zur Herstellung eines Anhydrit-Gipsgemisches aus feinteiligem synthetischen Calciumsulfat-Dihydrat

Publications (2)

Publication Number	Publication Date
FR2497190A2 FR2497190A2 (fr)	1982-07-02
FR2497190B2 true FR2497190B2 (fr)	1986-02-28

Family

ID=6115429

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR8120352A Expired FR2497190B2 (fr)	1980-10-29	1981-10-29	Procede pour la production d'un melange anhydrite-gypse a base de sulfate de calcium dihydrate synthetique en fines particules

Country Status (3)

Country	Link
BE (1)	BE890832A (fr)
FR (1)	FR2497190B2 (fr)
NL (1)	NL8104360A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU2929101A (en)	2000-01-05	2001-07-16	Saint-Gobain Technical Fabrics America, Inc.	Smooth reinforced cementitious boards and methods of making same

1981
- 1981-09-22 NL NL8104360A patent/NL8104360A/nl not_active Application Discontinuation
- 1981-10-22 BE BE0/206322A patent/BE890832A/fr not_active IP Right Cessation
- 1981-10-29 FR FR8120352A patent/FR2497190B2/fr not_active Expired

Also Published As

Publication number	Publication date
FR2497190A2 (fr)	1982-07-02
NL8104360A (nl)	1982-05-17
BE890832A (fr)	1982-02-15

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