IT1158192B - Procedimento per produrre solfato di calcio - Google Patents
Procedimento per produrre solfato di calcioInfo
- Publication number
- IT1158192B IT1158192B IT52460/78A IT5246078A IT1158192B IT 1158192 B IT1158192 B IT 1158192B IT 52460/78 A IT52460/78 A IT 52460/78A IT 5246078 A IT5246078 A IT 5246078A IT 1158192 B IT1158192 B IT 1158192B
- Authority
- IT
- Italy
- Prior art keywords
- procedure
- calcium sulphate
- producing calcium
- producing
- sulphate
- Prior art date
Links
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title 2
- 235000011132 calcium sulphate Nutrition 0.000 title 1
- 239000001175 calcium sulphate 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
- C04B11/02—Methods and apparatus for dehydrating gypsum
-
- 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
- C04B11/02—Methods and apparatus for dehydrating gypsum
- C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/025—Calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (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)
- Catalysts (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15945577A JPS5499098A (en) | 1977-12-29 | 1977-12-29 | Production of satin spar gypsum or spherical gypsum formed from said gypsum |
| JP8096778A JPS5510406A (en) | 1978-07-05 | 1978-07-05 | Production of gypsum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT7852460A0 IT7852460A0 (it) | 1978-12-27 |
| IT1158192B true IT1158192B (it) | 1987-02-18 |
Family
ID=26421929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT52460/78A IT1158192B (it) | 1977-12-29 | 1978-12-27 | Procedimento per produrre solfato di calcio |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1115025A (it) |
| DE (1) | DE2854722C2 (it) |
| FR (1) | FR2413339B1 (it) |
| GB (2) | GB2011363B (it) |
| IT (1) | IT1158192B (it) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4818287A (en) * | 1982-05-19 | 1989-04-04 | Georgia-Pacific Corporation | Fiber reinforced plaster molds for metal casting |
| US5148645A (en) * | 1984-02-27 | 1992-09-22 | Georgia-Pacific Corporation | Use of fibrous mat-faced gypsum board in shaft wall assemblies and improved fire resistant board |
| US4664707A (en) * | 1985-04-09 | 1987-05-12 | Georgia-Pacific Corporation | Fire resistant gypsum composition |
| US4722866A (en) * | 1985-04-09 | 1988-02-02 | Georgia-Pacific Corporation | Fire resistant gypsum board |
| DE3615717A1 (de) * | 1986-05-09 | 1987-11-12 | Benckiser Gmbh Joh A | Verfahren zur hydrothermalen umwandlung von rauchgasentschwefelungsgips in calciumsulfat-(alpha)-hemihydrat |
| CA2024146A1 (en) * | 1989-03-16 | 1990-09-17 | Michael R. Lynn | Process and apparatus for producing calcium sulfate microfibers |
| US5401588A (en) * | 1992-12-23 | 1995-03-28 | Georgia-Pacific Resins Inc. | Gypsum microfiber sheet material |
| FR2856679B1 (fr) * | 2003-06-26 | 2006-12-22 | Couturier Jean | Procede de preparation d'anhydrite iii stabilise a partir de platre. |
| FR2950879B1 (fr) * | 2009-10-02 | 2012-11-23 | Cemex Res Group Ag | Mortier a base d'anhydrite pour la fabrication chape fluide et procede de preparation d'anhydrite pour la fabrication d'un tel mortier |
| WO2015085236A1 (en) * | 2013-12-06 | 2015-06-11 | Flint Hills Resources, Lp | Gypsum composite modifiers |
| US20150158997A1 (en) * | 2013-12-06 | 2015-06-11 | Georgia-Pacific Gypsum Llc | Gypsum composite modifiers |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1356700A (fr) * | 1963-05-10 | 1964-03-27 | Giulini Gmbh Soc Geb | Procédé pour la fabrication de plâtres semi-hydratés de haute qualite |
| GB1079502A (en) * | 1963-05-28 | 1967-08-16 | Cafferata & Co Ltd | Improvements in and relating to the production of calcium sulphate hemihydrate |
| GB1051849A (it) * | 1963-12-03 | |||
| GB1248037A (en) * | 1968-01-13 | 1971-09-29 | Fisons Ltd | Calcium sulphate |
| US3822340A (en) * | 1972-03-27 | 1974-07-02 | Franklin Key | Calcium sulfate whisker fibers and the method for the manufacture thereof |
| JPS593406B2 (ja) * | 1974-05-15 | 1984-01-24 | 三菱重工業株式会社 | アルフア−ガタハンスイセツコウ ノ セイゾウホウホウ |
| US4029512A (en) * | 1974-08-05 | 1977-06-14 | Johns-Manville Corporation | Method for the preparation of fibrous insoluble calcium sulfate anhydrite |
| JPS5248594A (en) * | 1975-10-17 | 1977-04-18 | Kureha Chem Ind Co Ltd | Method for producing type gypsum hemihydrate |
| JPS52156199A (en) * | 1976-06-22 | 1977-12-26 | Onoda Cement Co Ltd | Production of gypsum fiber |
| DE2729842B2 (de) * | 1977-07-01 | 1979-05-23 | Skw Trostberg Ag, 8223 Trostberg | Verfahren zur Herstellung von anorganischen Fasern auf Basis von Calciumsulfat |
-
1978
- 1978-12-15 GB GB7848753A patent/GB2011363B/en not_active Expired
- 1978-12-15 GB GB8015586A patent/GB2053874B/en not_active Expired
- 1978-12-19 DE DE2854722A patent/DE2854722C2/de not_active Expired
- 1978-12-19 CA CA318,237A patent/CA1115025A/en not_active Expired
- 1978-12-27 IT IT52460/78A patent/IT1158192B/it active
- 1978-12-27 FR FR7836549A patent/FR2413339B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2011363B (en) | 1982-07-14 |
| DE2854722C2 (de) | 1985-09-19 |
| DE2854722A1 (de) | 1979-07-05 |
| GB2053874A (en) | 1981-02-11 |
| FR2413339A1 (fr) | 1979-07-27 |
| FR2413339B1 (fr) | 1985-11-08 |
| GB2011363A (en) | 1979-07-11 |
| GB2053874B (en) | 1982-07-28 |
| IT7852460A0 (it) | 1978-12-27 |
| CA1115025A (en) | 1981-12-29 |
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