DE3711367A1 - Verfahren zur herstellung von calciumsulfat-halbhydrat - Google Patents
Verfahren zur herstellung von calciumsulfat-halbhydratInfo
- Publication number
- DE3711367A1 DE3711367A1 DE19873711367 DE3711367A DE3711367A1 DE 3711367 A1 DE3711367 A1 DE 3711367A1 DE 19873711367 DE19873711367 DE 19873711367 DE 3711367 A DE3711367 A DE 3711367A DE 3711367 A1 DE3711367 A1 DE 3711367A1
- Authority
- DE
- Germany
- Prior art keywords
- autoclave
- hemihydrate
- calcium sulfate
- alpha
- steam
- 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.)
- Granted
Links
- 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 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000002440 industrial waste Substances 0.000 claims abstract description 4
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract 4
- 238000000034 method Methods 0.000 claims description 36
- 239000004570 mortar (masonry) Substances 0.000 claims description 19
- 229910052602 gypsum Inorganic materials 0.000 claims description 18
- 239000010440 gypsum Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 239000003546 flue gas Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000006477 desulfuration reaction Methods 0.000 claims description 9
- 230000023556 desulfurization Effects 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 6
- 238000013022 venting Methods 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 235000019738 Limestone Nutrition 0.000 claims description 3
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 claims description 3
- 235000010261 calcium sulphite Nutrition 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 claims description 2
- WXUAQHNMJWJLTG-UHFFFAOYSA-N 2-methylbutanedioic acid Chemical compound OC(=O)C(C)CC(O)=O WXUAQHNMJWJLTG-UHFFFAOYSA-N 0.000 claims 2
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims 1
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims 1
- 230000000740 bleeding effect Effects 0.000 claims 1
- 229910052920 inorganic sulfate Inorganic materials 0.000 claims 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims 1
- 229910052939 potassium sulfate Inorganic materials 0.000 claims 1
- 235000011151 potassium sulphates Nutrition 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 12
- 238000006297 dehydration reaction Methods 0.000 description 12
- 230000018044 dehydration Effects 0.000 description 11
- 239000002245 particle Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 7
- 239000011505 plaster Substances 0.000 description 6
- 150000004683 dihydrates Chemical class 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 239000007858 starting material Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910052925 anhydrite Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002918 waste heat 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
- C04B28/146—Calcium sulfate hemi-hydrate with a specific crystal form alpha-hemihydrate
-
- 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
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873711367 DE3711367A1 (de) | 1987-04-04 | 1987-04-04 | Verfahren zur herstellung von calciumsulfat-halbhydrat |
| LU87158A LU87158A1 (de) | 1987-04-04 | 1988-03-11 | Verfahren zur herstellung von calciumsulfat-halbhydrat |
| NL8800727A NL8800727A (nl) | 1987-04-04 | 1988-03-23 | Werkwijze voor de bereiding van calciumsulfaat-halfhydraat. |
| FR8803854A FR2613346B1 (fr) | 1987-04-04 | 1988-03-24 | Procede pour la fabrication de semi-hydrate de sulfate de calcium, semi-hydrate de sulfate de calcium fabrique par la mise en oeuvre de ce procede et melange de mortier contenant un tel semi-hydrate |
| BE8800375A BE1002661A3 (fr) | 1987-04-04 | 1988-03-31 | Procede pour la fabrication de semi-hydrate de sulfate de calcium. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873711367 DE3711367A1 (de) | 1987-04-04 | 1987-04-04 | Verfahren zur herstellung von calciumsulfat-halbhydrat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3711367A1 true DE3711367A1 (de) | 1988-10-13 |
| DE3711367C2 DE3711367C2 (en, 2012) | 1989-01-19 |
Family
ID=6324859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19873711367 Granted DE3711367A1 (de) | 1987-04-04 | 1987-04-04 | Verfahren zur herstellung von calciumsulfat-halbhydrat |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE1002661A3 (en, 2012) |
| DE (1) | DE3711367A1 (en, 2012) |
| FR (1) | FR2613346B1 (en, 2012) |
| LU (1) | LU87158A1 (en, 2012) |
| NL (1) | NL8800727A (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4217978A1 (de) * | 1992-05-30 | 1993-12-02 | Heidelberger Zement Ag | Verfahren zur Herstellung von ALPHA-Halbhydrat aus Calciumsulfat-Dihydrat in einem Reaktor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3800794A1 (de) * | 1988-01-14 | 1989-07-27 | Rwk Rhein Westfael Kalkwerke | Verfahren und anlage zur herstellung von calciumsulfat-halbhydrat in alpha-konfiguration |
| DE3927927A1 (de) * | 1989-08-24 | 1991-02-28 | Rwk Rhein Westfael Kalkwerke | Verfahren zur herstellung von faserbewehrten formteilen auf gipsbasis |
| DE4409219C2 (de) * | 1994-03-18 | 1997-03-27 | Salzgitter Anlagenbau | Verfahren zur kontinuierlichen Herstellung von alpha-Calciumsulfat-Halbhydrat aus Calciumsulfat-Dihydrat |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2310799A1 (de) * | 1972-03-08 | 1973-09-13 | United States Gypsum Co | Verfahren zum herstellen von calciniertem gips mit geringer dichte |
| DE1927015B2 (de) * | 1968-05-28 | 1976-12-16 | Bpb Industries Ltd., London | Verfahren zur herstellung von alpha-hemihydrat-gips |
| DE3114363A1 (de) * | 1980-04-14 | 1982-03-04 | Idemitsu Kosan Co., Ltd., Tokyo | Verfahren zur herstellung von calciumsulfat-hemihydrat vom (alpha) -typ |
| DE3109879A1 (de) * | 1981-03-14 | 1982-09-23 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | "verfahren zur beseitigung von zwangslaeufig anfallenden abfallprodukten hinter kohlekraftwerken und deren nutzung unter verwendung von abfallwaerme aus dem kraftwerk zur herstellung von vorzugsweise dammbaustoffen fuer den untertaegigen bergbau" |
| DE3239669A1 (de) * | 1982-10-27 | 1984-05-03 | Joh. A. Benckiser Gmbh, 6700 Ludwigshafen | Kontinuierliches verfahren zur gewinnung von industriell verwertbarem gips aus industrie-abfallgips |
| DE3331838A1 (de) * | 1983-09-03 | 1985-03-21 | Gottfried Bischoff Bau kompl. Gasreinigungs- und Wasserrückkühlanlagen GmbH & Co KG, 4300 Essen | Verfahren zur umsetzung des rueckstandes aus rauchgas-entschwefelungsanlagen zu alphahalbhydrat-gipskristallen |
| DE3533007A1 (de) * | 1984-09-17 | 1986-04-17 | Kureha Kagaku Kogyo K.K., Nihonbashi, Tokio/Tokyo | Verfahren zur herstellung von gipshemihydrat der alphaform |
| DE3502637A1 (de) * | 1985-01-26 | 1986-09-11 | Frank W. Dr.-Ing. 6600 Saarbrücken Fink | Verfahren zum kalzinieren von stueckigem rauchgasentschwefelungsgips mittels dampfeinwirkung |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2282091A (en) * | 1938-10-17 | 1942-05-05 | Oliver F Redd | Process for preparing calcined gypsum |
| US3527447A (en) * | 1968-12-23 | 1970-09-08 | United States Gypsum Co | Process for the preparation of calcined gypsum |
| JPS5260293A (en) * | 1975-11-12 | 1977-05-18 | Mitsui Toatsu Chem Inc | Method for continuous production of alpha-gypsum hemihydrate |
| DE3114555C2 (de) * | 1981-04-10 | 1984-12-13 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen | Verwendung eines hydraulisch abbindenden Mehrkomponenten-Gemisches |
-
1987
- 1987-04-04 DE DE19873711367 patent/DE3711367A1/de active Granted
-
1988
- 1988-03-11 LU LU87158A patent/LU87158A1/de unknown
- 1988-03-23 NL NL8800727A patent/NL8800727A/nl not_active Application Discontinuation
- 1988-03-24 FR FR8803854A patent/FR2613346B1/fr not_active Expired - Fee Related
- 1988-03-31 BE BE8800375A patent/BE1002661A3/fr not_active IP Right Cessation
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1927015B2 (de) * | 1968-05-28 | 1976-12-16 | Bpb Industries Ltd., London | Verfahren zur herstellung von alpha-hemihydrat-gips |
| DE2310799A1 (de) * | 1972-03-08 | 1973-09-13 | United States Gypsum Co | Verfahren zum herstellen von calciniertem gips mit geringer dichte |
| DE3114363A1 (de) * | 1980-04-14 | 1982-03-04 | Idemitsu Kosan Co., Ltd., Tokyo | Verfahren zur herstellung von calciumsulfat-hemihydrat vom (alpha) -typ |
| DE3109879A1 (de) * | 1981-03-14 | 1982-09-23 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | "verfahren zur beseitigung von zwangslaeufig anfallenden abfallprodukten hinter kohlekraftwerken und deren nutzung unter verwendung von abfallwaerme aus dem kraftwerk zur herstellung von vorzugsweise dammbaustoffen fuer den untertaegigen bergbau" |
| DE3239669A1 (de) * | 1982-10-27 | 1984-05-03 | Joh. A. Benckiser Gmbh, 6700 Ludwigshafen | Kontinuierliches verfahren zur gewinnung von industriell verwertbarem gips aus industrie-abfallgips |
| DE3331838A1 (de) * | 1983-09-03 | 1985-03-21 | Gottfried Bischoff Bau kompl. Gasreinigungs- und Wasserrückkühlanlagen GmbH & Co KG, 4300 Essen | Verfahren zur umsetzung des rueckstandes aus rauchgas-entschwefelungsanlagen zu alphahalbhydrat-gipskristallen |
| DE3533007A1 (de) * | 1984-09-17 | 1986-04-17 | Kureha Kagaku Kogyo K.K., Nihonbashi, Tokio/Tokyo | Verfahren zur herstellung von gipshemihydrat der alphaform |
| DE3502637A1 (de) * | 1985-01-26 | 1986-09-11 | Frank W. Dr.-Ing. 6600 Saarbrücken Fink | Verfahren zum kalzinieren von stueckigem rauchgasentschwefelungsgips mittels dampfeinwirkung |
Non-Patent Citations (3)
| Title |
|---|
| DE-B.: WINNACKER/KÜCHLER, Chemische Technologie, Bd. 3, 4. Aufl., 1983, Carl Hanser Verlag, München, Wien, S.271 * |
| DE-Z.: Elektrizitätswirtschaft, 84. Jahrg., H. 5, 1985, S.149-160 * |
| DE-Z.: Erzmetall, 37, 1984, Nr. 2, S.79-83 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4217978A1 (de) * | 1992-05-30 | 1993-12-02 | Heidelberger Zement Ag | Verfahren zur Herstellung von ALPHA-Halbhydrat aus Calciumsulfat-Dihydrat in einem Reaktor |
| EP0572781A1 (de) * | 1992-05-30 | 1993-12-08 | Heidelberger Zement AG | Verfahren zur Herstellung von ALPHA-Halbhydrat aus Calciumsulfat-Dihydrat in einem Reaktor |
Also Published As
| Publication number | Publication date |
|---|---|
| LU87158A1 (de) | 1988-08-23 |
| BE1002661A3 (fr) | 1991-04-30 |
| FR2613346B1 (fr) | 1991-06-21 |
| FR2613346A1 (fr) | 1988-10-07 |
| DE3711367C2 (en, 2012) | 1989-01-19 |
| NL8800727A (nl) | 1988-11-01 |
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