DE1767937C3 - Verfahren zur Erzeugung von halbhydratisiertem Calciumsulfat in der alpha-Kristallform - Google Patents
Verfahren zur Erzeugung von halbhydratisiertem Calciumsulfat in der alpha-KristallformInfo
- Publication number
- DE1767937C3 DE1767937C3 DE1767937A DE1767937A DE1767937C3 DE 1767937 C3 DE1767937 C3 DE 1767937C3 DE 1767937 A DE1767937 A DE 1767937A DE 1767937 A DE1767937 A DE 1767937A DE 1767937 C3 DE1767937 C3 DE 1767937C3
- Authority
- DE
- Germany
- Prior art keywords
- liquid
- semi
- container
- gypsum
- cooking
- Prior art date
- 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
Links
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000013078 crystal Substances 0.000 title claims 7
- 239000007788 liquid Substances 0.000 claims description 27
- 238000010411 cooking Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 7
- 244000052616 bacterial pathogen Species 0.000 claims description 7
- 238000009835 boiling Methods 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 7
- 229910052602 gypsum Inorganic materials 0.000 claims description 5
- 239000010440 gypsum Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 235000011132 calcium sulphate Nutrition 0.000 claims 6
- 150000003839 salts Chemical class 0.000 claims 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 4
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 3
- 229910052700 potassium Inorganic materials 0.000 claims 3
- 239000011591 potassium Substances 0.000 claims 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 2
- 229910052792 caesium Inorganic materials 0.000 claims 2
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims 2
- 239000001175 calcium sulphate Substances 0.000 claims 2
- 150000001768 cations Chemical class 0.000 claims 2
- 230000007797 corrosion Effects 0.000 claims 2
- 238000005260 corrosion Methods 0.000 claims 2
- 235000011187 glycerol Nutrition 0.000 claims 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims 2
- 230000007935 neutral effect Effects 0.000 claims 2
- 239000012429 reaction media Substances 0.000 claims 2
- 239000012266 salt solution Substances 0.000 claims 2
- 239000000243 solution Substances 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 2
- 238000005406 washing Methods 0.000 claims 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- 230000003321 amplification Effects 0.000 claims 1
- 239000012736 aqueous medium Substances 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000010924 continuous production Methods 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000001704 evaporation Methods 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 150000004820 halides Chemical class 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 239000007791 liquid phase Substances 0.000 claims 1
- 239000002609 medium Substances 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- 150000002823 nitrates Chemical class 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 229910052701 rubidium Inorganic materials 0.000 claims 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 claims 1
- 229940074404 sodium succinate Drugs 0.000 claims 1
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 claims 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 9
- 239000011507 gypsum plaster Substances 0.000 description 9
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 241000158147 Sator Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0036—Crystallisation on to a bed of product crystals; Seeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J16/00—Chemical processes in general for reacting liquids with non- particulate solids, e.g. sheet material; Apparatus specially adapted therefor
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR119019 | 1967-08-25 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE1767937A1 DE1767937A1 (de) | 1972-03-09 |
| DE1767937B2 DE1767937B2 (de) | 1973-08-02 |
| DE1767937C3 true DE1767937C3 (de) | 1974-03-07 |
Family
ID=8637363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1767937A Expired DE1767937C3 (de) | 1967-08-25 | 1968-07-03 | Verfahren zur Erzeugung von halbhydratisiertem Calciumsulfat in der alpha-Kristallform |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE717260A (show.php) |
| CH (1) | CH510583A (show.php) |
| DE (1) | DE1767937C3 (show.php) |
| ES (1) | ES356722A1 (show.php) |
| FR (1) | FR1548410A (show.php) |
| GB (1) | GB1246664A (show.php) |
| LU (1) | LU56676A1 (show.php) |
| NL (1) | NL6812084A (show.php) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59802498D1 (de) * | 1997-05-10 | 2002-01-31 | Sicowa Verfahrenstech | Verfahren zum Herstellen von Calciumsulfat-Alphahalbhydrat |
| US8793897B2 (en) * | 2010-08-11 | 2014-08-05 | Grenzebach Bsh Gmbh | Process and device for stabilising, cooling and dehumidifying gypsum plaster |
| CN110498626B (zh) * | 2019-09-09 | 2022-04-05 | 太原科技大学 | 一种α型半水石膏的生产方法 |
-
1967
- 1967-08-25 FR FR119019A patent/FR1548410A/fr not_active Expired
-
1968
- 1968-06-27 BE BE717260D patent/BE717260A/xx not_active IP Right Cessation
- 1968-07-01 CH CH978568A patent/CH510583A/fr not_active IP Right Cessation
- 1968-07-02 GB GB31603/68A patent/GB1246664A/en not_active Expired
- 1968-07-03 DE DE1767937A patent/DE1767937C3/de not_active Expired
- 1968-07-31 ES ES356722A patent/ES356722A1/es not_active Expired
- 1968-08-08 LU LU56676D patent/LU56676A1/xx unknown
- 1968-08-23 NL NL6812084A patent/NL6812084A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6812084A (show.php) | 1969-02-27 |
| DE1767937A1 (de) | 1972-03-09 |
| GB1246664A (en) | 1971-09-15 |
| ES356722A1 (es) | 1970-02-16 |
| FR1548410A (show.php) | 1968-12-06 |
| LU56676A1 (show.php) | 1968-11-18 |
| CH510583A (fr) | 1971-07-31 |
| DE1767937B2 (de) | 1973-08-02 |
| BE717260A (show.php) | 1968-12-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 | ||
| 8339 | Ceased/non-payment of the annual fee |