BE660216A - - Google Patents
Info
- Publication number
- BE660216A BE660216A BE660216DA BE660216A BE 660216 A BE660216 A BE 660216A BE 660216D A BE660216D A BE 660216DA BE 660216 A BE660216 A BE 660216A
- Authority
- BE
- Belgium
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
- C01F11/466—Conversion of one form of calcium sulfate to another
-
- 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
- C01F11/468—Purification of calcium sulfates
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR965314A FR1409248A (fr) | 1963-07-04 | 1964-02-27 | Procédé de purification du gypse résiduaire provenant de la fabrication d'acide phosphorique par l'attaque sulfurique de phosphates naturels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE660216A true BE660216A (US07413550-20080819-C00001.png) | 1965-06-16 |
Family
ID=8824157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE660216D BE660216A (US07413550-20080819-C00001.png) | 1964-02-27 | 1965-02-25 |
Country Status (10)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005118470A1 (fr) | 2004-06-01 | 2005-12-15 | Prayon Technologies | Procede de production d'acide phosphorique |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4113835A (en) * | 1972-07-06 | 1978-09-12 | Veba-Chemie Aktiengesellschaft | Process for preparing pure synthetic calcium sulfate semihydrate |
| NL7812109A (nl) * | 1978-12-13 | 1980-06-17 | Stamicarbon | Werkwijze voor het bereiden van calciumsulfaat- anhydriet en calciumsulfaatanhydriet verkregen volgens deze werkwijze. |
| US4388292A (en) * | 1981-12-14 | 1983-06-14 | United States Gypsum Company | Process for reducing radioactive contamination in phosphogypsum |
| US4421731A (en) * | 1982-09-29 | 1983-12-20 | United States Gypsum Company | Process for purifying phosphogypsum |
| NL8402502A (nl) * | 1983-09-03 | 1985-04-01 | Bischoff Gasreinigung | Werkwijze voor het omzetten van het residu afkomstig van rookgasontzwavelingsinstallaties in alfahalfhydraat-gipskristallen. |
| EP0237802B1 (de) * | 1986-02-20 | 1990-05-09 | Gebr. Knauf Westdeutsche Gipswerke KG | Verfahren zur Herstellung von Calciumsulfat-Anhydrit und abbindefähigen Calciumsulfaten |
| EP2771280B1 (fr) * | 2011-10-24 | 2018-02-21 | Hydrometal SA | Procede de traitement de roches phosphatees |
| BE1023754B1 (fr) * | 2016-06-23 | 2017-07-12 | Prayon Technologies | Procede de production de sulfate de calcium |
| CN110937833B (zh) * | 2019-12-03 | 2021-10-08 | 贵州鼎瑞环保科技有限公司 | 一种磷石膏免烧改性处理方法 |
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1965
- 1965-02-17 IL IL23004A patent/IL23004A/xx unknown
- 1965-02-22 DE DE19651567505 patent/DE1567505A1/de active Pending
- 1965-02-22 OA OA51471A patent/OA01528A/xx unknown
- 1965-02-24 GB GB7888/65A patent/GB1103206A/en not_active Expired
- 1965-02-25 BE BE660216D patent/BE660216A/xx unknown
- 1965-02-26 NL NL656502504A patent/NL144896B/xx unknown
- 1965-02-26 ES ES0310273A patent/ES310273A1/es not_active Expired
- 1965-02-27 DK DK103765AA patent/DK111201B/da unknown
- 1965-03-01 AT AT177765A patent/AT264461B/de active
-
1969
- 1969-02-27 US US802890*A patent/US3580703A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005118470A1 (fr) | 2004-06-01 | 2005-12-15 | Prayon Technologies | Procede de production d'acide phosphorique |
Also Published As
| Publication number | Publication date |
|---|---|
| OA01528A (fr) | 1969-07-21 |
| GB1103206A (en) | 1968-02-14 |
| US3580703A (en) | 1971-05-25 |
| NL144896B (nl) | 1975-02-17 |
| DE1567505A1 (de) | 1970-04-16 |
| NL6502504A (US07413550-20080819-C00001.png) | 1965-08-30 |
| IL23004A (en) | 1969-03-27 |
| ES310273A1 (es) | 1965-07-01 |
| AT264461B (de) | 1968-09-10 |
| DK111201B (da) | 1968-07-01 |
