BE836714A - Procede et appareillage pour la preparation d'alpha-hemihydrate de sulfate de calcium - Google Patents
Procede et appareillage pour la preparation d'alpha-hemihydrate de sulfate de calciumInfo
- Publication number
- BE836714A BE836714A BE162803A BE162803A BE836714A BE 836714 A BE836714 A BE 836714A BE 162803 A BE162803 A BE 162803A BE 162803 A BE162803 A BE 162803A BE 836714 A BE836714 A BE 836714A
- Authority
- BE
- Belgium
- Prior art keywords
- hemihydrate
- preparation
- calcium sulphate
- sulphate alpha
- alpha
- 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
- 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 (de) | 1974-12-18 | Verfahren und Anlage zur Herstellung von Calciumsulfat-alpha-Halbhydrat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE836714A true BE836714A (fr) | 1976-06-17 |
Family
ID=5933662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE162803A BE836714A (fr) | 1974-12-18 | 1975-12-17 | Procede et appareillage pour la preparation d'alpha-hemihydrate de sulfate de calcium |
Country Status (14)
| Country | Link |
|---|---|
| AT (1) | AT340445B (ro) |
| BE (1) | BE836714A (ro) |
| BR (1) | BR7508349A (ro) |
| CH (1) | CH618146A5 (ro) |
| DK (1) | DK142026C (ro) |
| FR (1) | FR2294985A1 (ro) |
| GB (1) | GB1474839A (ro) |
| IE (1) | IE42222B1 (ro) |
| LU (1) | LU74027A1 (ro) |
| NL (1) | NL172142C (ro) |
| PL (1) | PL109429B1 (ro) |
| RO (1) | RO67270A (ro) |
| SE (1) | SE405844B (ro) |
| SU (1) | SU805943A3 (ro) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0085382A1 (de) * | 1982-02-01 | 1983-08-10 | Quante, Heinrich | Vorrichtung zur Herstellung von Alpha-Calciumsulfat-Halbhydrat |
| CN111517355A (zh) * | 2020-05-05 | 2020-08-11 | 桂林理工大学 | 一种蒸压条件下磷石膏制备α半水石膏的方法 |
-
1975
- 1975-12-03 GB GB4965175A patent/GB1474839A/en not_active Expired
- 1975-12-12 RO RO7584191A patent/RO67270A/ro unknown
- 1975-12-12 CH CH1615975A patent/CH618146A5/de not_active IP Right Cessation
- 1975-12-15 SU SU752199179A patent/SU805943A3/ru active
- 1975-12-16 LU LU74027A patent/LU74027A1/xx unknown
- 1975-12-16 NL NLAANVRAGE7514656,A patent/NL172142C/xx not_active IP Right Cessation
- 1975-12-17 AT AT958575A patent/AT340445B/de not_active IP Right Cessation
- 1975-12-17 IE IE2746/75A patent/IE42222B1/en unknown
- 1975-12-17 BE BE162803A patent/BE836714A/xx not_active IP Right Cessation
- 1975-12-17 BR BR7508349*A patent/BR7508349A/pt unknown
- 1975-12-17 PL PL1975185660A patent/PL109429B1/pl unknown
- 1975-12-17 DK DK574175A patent/DK142026C/da active
- 1975-12-17 SE SE7514272A patent/SE405844B/xx unknown
- 1975-12-18 FR FR7538905A patent/FR2294985A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| SE405844B (sv) | 1979-01-08 |
| RO67270A (ro) | 1980-03-15 |
| DK574175A (da) | 1976-06-19 |
| SU805943A3 (ru) | 1981-02-15 |
| NL172142B (nl) | 1983-02-16 |
| IE42222B1 (en) | 1980-07-02 |
| AT340445B (de) | 1977-12-12 |
| BR7508349A (pt) | 1976-09-08 |
| DK142026C (da) | 1981-01-05 |
| GB1474839A (en) | 1977-05-25 |
| DK142026B (da) | 1980-08-11 |
| NL172142C (nl) | 1983-07-18 |
| LU74027A1 (ro) | 1976-12-31 |
| CH618146A5 (en) | 1980-07-15 |
| FR2294985A1 (fr) | 1976-07-16 |
| ATA958575A (de) | 1977-04-15 |
| SE7514272L (sv) | 1976-06-21 |
| IE42222L (en) | 1976-06-18 |
| DE2459739A1 (de) | 1976-07-01 |
| DE2459739B2 (de) | 1976-11-18 |
| NL7514656A (nl) | 1976-06-22 |
| PL109429B1 (en) | 1980-05-31 |
| FR2294985B1 (ro) | 1981-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ZA763014B (en) | Process and apparatus for the conversion of gypsum into calcium sulphate hemihydrate | |
| JPS53114820A (en) | Method of making calcium sulfate block member | |
| BE822555A (fr) | Procede et appareil pour la calcination de sulfate de calcium adeux molecules d'eau | |
| RO65917A (ro) | Procedeu pentru prepararea flururii de calciu | |
| BE825452A (fr) | Procede et composition pour la reduction de la pollution de l'air | |
| RO69712A (fr) | Procede pour la preparation des thio-ethers d'acide clavulanique | |
| JPS5447895A (en) | Method of manufacturing calcium sulfate of raw material for manufacturing plaster and plaster board | |
| FR2291163A1 (fr) | Composition pour produit durci, et le procede de preparation correspondant, le produit etant l'aluminate-sulfate de calcium hydrate | |
| BE836714A (fr) | Procede et appareillage pour la preparation d'alpha-hemihydrate de sulfate de calcium | |
| FR2290403A1 (fr) | Procede d'hydratation de la chaux et produit ainsi obtenu | |
| BE881837A (fr) | Procede de production d'un melange de sulfate de calcium hemihydrate et de sulfate de calcium dihydrate et ses applications | |
| BE854272A (fr) | Procede de preparation du sulfate de l'octapeptidamide de la cholecystokinine-pancreozymine | |
| BE849603A (fr) | Masse de materiau de construction a base d'alpha-hemihydrate du sulfate calcium, son procede de preparation et son utilisation pour la formation de revetements de sols | |
| BE833733A (fr) | Procede pour la preparation d'agglomeres | |
| FR2283150A1 (fr) | Procede pour la preparation d'hydroxy-11b alkyl-18 oestranes | |
| BE827459A (fr) | Procede pour la preparation d'esters | |
| FR2350312A1 (fr) | Procede pour la fabrication de moulages en sulfate de calcium bihydrate | |
| BE825183A (fr) | Procede pour la preparation d'halogenures d'hydrocarbyl-metaux | |
| FR2293412A1 (fr) | Procede pour l'enrichissement d'haloanthraquinones | |
| RO63020A (fr) | Procede pour la preparation d'esters des cephalosporinsulfomates | |
| RO72406A (ro) | Procedeu pentru prepararea sulfatului sarac in fluor | |
| BE833815A (fr) | Procede et appareillage destines a la preparation du sulfate ferrique basique | |
| BE825871A (fr) | Procede de preparation simultanee de cyclohexanonoxime et de solution concentree de sulfate d'ammonium | |
| JPS5482396A (en) | Method of manufacturing bulky calcium sulfate dihydrated salt needleelike crystal and apparatus therefor | |
| BE863047A (fr) | Procede de preparation de monocristaux ("whiskers") de sulfate de calcium et produits obtenus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: HOECHST A.G. Effective date: 19861231 |