RO67270A - PROCESS AND INSTALLATION FOR THE OBTAINING OF CALCIUM SULPHATE ALPHA-HEMIHYDROT - Google Patents
PROCESS AND INSTALLATION FOR THE OBTAINING OF CALCIUM SULPHATE ALPHA-HEMIHYDROTInfo
- Publication number
- RO67270A RO67270A RO7584191A RO8419175A RO67270A RO 67270 A RO67270 A RO 67270A RO 7584191 A RO7584191 A RO 7584191A RO 8419175 A RO8419175 A RO 8419175A RO 67270 A RO67270 A RO 67270A
- Authority
- RO
- Romania
- Prior art keywords
- hemihydrot
- obtaining
- installation
- calcium sulphate
- sulphate alpha
- Prior art date
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
- 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
- C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
- C04B11/032—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the wet process, e.g. dehydrating in solution or under saturated vapour conditions, i.e. to obtain alpha-hemihydrate
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)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742459739 DE2459739C3 (en) | 1974-12-18 | Process and plant for the production of calcium sulfate alpha hemihydrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO67270A true RO67270A (en) | 1980-03-15 |
Family
ID=5933662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO7584191A RO67270A (en) | 1974-12-18 | 1975-12-12 | PROCESS AND INSTALLATION FOR THE OBTAINING OF CALCIUM SULPHATE ALPHA-HEMIHYDROT |
Country Status (14)
| Country | Link |
|---|---|
| AT (1) | AT340445B (en) |
| BE (1) | BE836714A (en) |
| BR (1) | BR7508349A (en) |
| CH (1) | CH618146A5 (en) |
| DK (1) | DK142026C (en) |
| FR (1) | FR2294985A1 (en) |
| GB (1) | GB1474839A (en) |
| IE (1) | IE42222B1 (en) |
| LU (1) | LU74027A1 (en) |
| NL (1) | NL172142C (en) |
| PL (1) | PL109429B1 (en) |
| RO (1) | RO67270A (en) |
| SE (1) | SE405844B (en) |
| SU (1) | SU805943A3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0085382A1 (en) * | 1982-02-01 | 1983-08-10 | Quante, Heinrich | Installation for the production of alpha-calcium sulfate |
| CN111517355A (en) * | 2020-05-05 | 2020-08-11 | 桂林理工大学 | Method for preparing alpha hemihydrate gypsum from phosphogypsum under autoclaved condition |
-
1975
- 1975-12-03 GB GB4965175A patent/GB1474839A/en not_active Expired
- 1975-12-12 CH CH1615975A patent/CH618146A5/en not_active IP Right Cessation
- 1975-12-12 RO RO7584191A patent/RO67270A/en unknown
- 1975-12-15 SU SU752199179A patent/SU805943A3/en active
- 1975-12-16 LU LU74027A patent/LU74027A1/xx unknown
- 1975-12-16 NL NLAANVRAGE7514656,A patent/NL172142C/en not_active IP Right Cessation
- 1975-12-17 AT AT958575A patent/AT340445B/en not_active IP Right Cessation
- 1975-12-17 PL PL1975185660A patent/PL109429B1/en unknown
- 1975-12-17 SE SE7514272A patent/SE405844B/en unknown
- 1975-12-17 IE IE2746/75A patent/IE42222B1/en unknown
- 1975-12-17 BE BE162803A patent/BE836714A/en not_active IP Right Cessation
- 1975-12-17 BR BR7508349*A patent/BR7508349A/en unknown
- 1975-12-17 DK DK574175A patent/DK142026C/en active
- 1975-12-18 FR FR7538905A patent/FR2294985A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IE42222L (en) | 1976-06-18 |
| FR2294985B1 (en) | 1981-08-07 |
| GB1474839A (en) | 1977-05-25 |
| DE2459739B2 (en) | 1976-11-18 |
| DE2459739A1 (en) | 1976-07-01 |
| LU74027A1 (en) | 1976-12-31 |
| PL109429B1 (en) | 1980-05-31 |
| BR7508349A (en) | 1976-09-08 |
| CH618146A5 (en) | 1980-07-15 |
| NL172142C (en) | 1983-07-18 |
| NL172142B (en) | 1983-02-16 |
| NL7514656A (en) | 1976-06-22 |
| DK574175A (en) | 1976-06-19 |
| SE405844B (en) | 1979-01-08 |
| AT340445B (en) | 1977-12-12 |
| DK142026B (en) | 1980-08-11 |
| DK142026C (en) | 1981-01-05 |
| BE836714A (en) | 1976-06-17 |
| FR2294985A1 (en) | 1976-07-16 |
| IE42222B1 (en) | 1980-07-02 |
| SU805943A3 (en) | 1981-02-15 |
| ATA958575A (en) | 1977-04-15 |
| SE7514272L (en) | 1976-06-21 |
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