DE3816513A1 - Verfahren zur erzeugung von calciumsulfat-alphahalbhydrat aus calciumsulfat-dihydrat - Google Patents
Verfahren zur erzeugung von calciumsulfat-alphahalbhydrat aus calciumsulfat-dihydratInfo
- Publication number
- DE3816513A1 DE3816513A1 DE3816513A DE3816513A DE3816513A1 DE 3816513 A1 DE3816513 A1 DE 3816513A1 DE 3816513 A DE3816513 A DE 3816513A DE 3816513 A DE3816513 A DE 3816513A DE 3816513 A1 DE3816513 A1 DE 3816513A1
- Authority
- DE
- Germany
- Prior art keywords
- calcium sulfate
- alpha hemihydrate
- autoclave
- ground
- water
- 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
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title claims description 156
- 235000011132 calcium sulphate Nutrition 0.000 title claims description 53
- 239000001175 calcium sulphate Substances 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000011148 porous material Substances 0.000 claims abstract description 41
- 238000000465 moulding Methods 0.000 claims abstract description 27
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 15
- 239000010440 gypsum Substances 0.000 claims abstract description 15
- 239000000654 additive Substances 0.000 claims abstract description 9
- 239000002023 wood Substances 0.000 claims abstract description 9
- 239000003077 lignite Substances 0.000 claims abstract description 6
- 239000003415 peat Substances 0.000 claims abstract description 5
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000004021 humic acid Substances 0.000 claims abstract description 4
- 229940095672 calcium sulfate Drugs 0.000 claims description 51
- 239000013078 crystal Substances 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 34
- 238000004519 manufacturing process Methods 0.000 claims description 23
- 238000001953 recrystallisation Methods 0.000 claims description 17
- 239000000126 substance Substances 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 10
- 229920006395 saturated elastomer Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 6
- 238000006477 desulfuration reaction Methods 0.000 claims description 6
- 230000023556 desulfurization Effects 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000003546 flue gas Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 239000011505 plaster Substances 0.000 claims description 4
- 239000004566 building material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 239000003463 adsorbent Substances 0.000 claims 1
- 239000010426 asphalt Substances 0.000 claims 1
- 229910052918 calcium silicate Inorganic materials 0.000 claims 1
- 239000000378 calcium silicate Substances 0.000 claims 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims 1
- 239000000919 ceramic Substances 0.000 claims 1
- 239000011093 chipboard Substances 0.000 claims 1
- 239000004567 concrete Substances 0.000 claims 1
- 238000013270 controlled release Methods 0.000 claims 1
- 239000011094 fiberboard Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 238000005065 mining Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- 230000005641 tunneling Effects 0.000 claims 1
- 150000004683 dihydrates Chemical class 0.000 abstract description 5
- 238000007493 shaping process Methods 0.000 description 8
- 238000007792 addition Methods 0.000 description 7
- 238000000227 grinding Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- 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 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- YASYEJJMZJALEJ-UHFFFAOYSA-N Citric acid monohydrate Chemical compound O.OC(=O)CC(O)(C(O)=O)CC(O)=O YASYEJJMZJALEJ-UHFFFAOYSA-N 0.000 description 3
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 229960002303 citric acid monohydrate Drugs 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- -1 acyclic carboxylic acids Chemical class 0.000 description 2
- 229910052925 anhydrite Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011455 calcium-silicate brick Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
- RGHNJXZEOKUKBD-SQOUGZDYSA-N Gluconic acid Natural products OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 1
- 241000257303 Hymenoptera Species 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 235000011430 Malus pumila Nutrition 0.000 description 1
- 235000015103 Malus silvestris Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000006887 Ullmann reaction Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 239000003966 growth inhibitor Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- UWBHMRBRLOJJAA-UHFFFAOYSA-N oxaluric acid Chemical compound NC(=O)NC(=O)C(O)=O UWBHMRBRLOJJAA-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
- A01K1/0152—Litter
- A01K1/0154—Litter comprising inorganic material
-
- 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
- C04B11/00—Calcium sulfate cements
- C04B11/02—Methods and apparatus for dehydrating gypsum
- C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
-
- 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
- C04B11/268—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke pelletizing of the material before starting the manufacture
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
- C04B22/143—Calcium-sulfate
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/14—Pore volume
Description
Claims (22)
- wobei aus dem Calciumsulfat-Dihydrat Formkörper geformt werden, die 15 bis 60% Porenvolumen sowie in den Po ren mehr als 5 Vol.-% Luft (alle Prozentangaben bezogen auf das Volumen der einzelnen Formkörper) aufweisen,
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3816513A DE3816513C3 (de) | 1987-05-22 | 1988-05-14 | Verfahren zur Erzeugung von Calciumsulfat-Alphahalbhydrat aus feinteiligem Calciumsulfat und dessen Verwendung |
DE3819652A DE3819652C3 (de) | 1987-05-22 | 1988-05-14 | Verfahren zur Erzeugung von als Baustoff geeignetem Calciumsulfat-Alphahalbhydrat aus feuchtem, feinteiligem Rauchgasentschwefelungsgips und seine Verwendung |
DE3844938A DE3844938C2 (de) | 1987-05-22 | 1988-05-14 | Verfahren zur Erzeugung von Calciumsulfat-Alphahalbhydrat aus feinteiligem Calciumsulfat und dessen Verwendung |
AT88120944T ATE62648T1 (de) | 1988-05-14 | 1988-12-15 | Verfahren zum aufbereiten von calciumsulfatalphahalbhydrat. |
DE8888120944T DE3862468D1 (de) | 1988-05-14 | 1988-12-15 | Verfahren zum aufbereiten von calciumsulfat-alphahalbhydrat. |
US07/458,676 US5093093A (en) | 1987-05-22 | 1989-05-10 | Process for preparing calcium sulfate alpha hemihydrate |
JP50545389A JPH03500877A (ja) | 1988-05-14 | 1989-05-10 | 硫酸カルシウム‐α型半水塩の仕上げ処理法 |
PCT/EP1989/000512 WO1989010905A1 (en) | 1987-05-22 | 1989-05-10 | Process for preparing calcium sulphate alpha hemihydrate |
DD32856889A DD283796A5 (de) | 1988-05-14 | 1989-05-12 | Verfahren zum aufbereiten von calciumsulfat-alphahalbhydrat und dessen verwendung |
CA 600321 CA1338921C (en) | 1988-05-14 | 1989-05-15 | Method of processing calcium alpha hemihydrate |
FI900126A FI93943C (fi) | 1988-05-14 | 1990-01-10 | Menetelmä kalsiumsulfaatti- -hemihydraatin valmistamiseksi |
DK009090A DK9090A (da) | 1988-05-14 | 1990-01-12 | Fremgangsmaade til fremstilling af calciumsulfat-alfa-hemihydrat samt anvendelse af dette |
NO90900168A NO900168L (no) | 1988-05-14 | 1990-01-12 | Fremgangsmaate for opparbeiding av kalsiumsulfat-halvhydrat |
GR91400788T GR3003007T3 (en) | 1988-05-14 | 1991-04-18 | Process for the treatment of alpha-calciumsulphate-hemihydrate |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3717187 | 1987-05-22 | ||
DE3816513A DE3816513C3 (de) | 1987-05-22 | 1988-05-14 | Verfahren zur Erzeugung von Calciumsulfat-Alphahalbhydrat aus feinteiligem Calciumsulfat und dessen Verwendung |
DE3844938A DE3844938C2 (de) | 1987-05-22 | 1988-05-14 | Verfahren zur Erzeugung von Calciumsulfat-Alphahalbhydrat aus feinteiligem Calciumsulfat und dessen Verwendung |
DE3819652A DE3819652C3 (de) | 1987-05-22 | 1988-05-14 | Verfahren zur Erzeugung von als Baustoff geeignetem Calciumsulfat-Alphahalbhydrat aus feuchtem, feinteiligem Rauchgasentschwefelungsgips und seine Verwendung |
Publications (3)
Publication Number | Publication Date |
---|---|
DE3816513A1 true DE3816513A1 (de) | 1988-12-08 |
DE3816513C2 DE3816513C2 (de) | 1991-10-31 |
DE3816513C3 DE3816513C3 (de) | 1998-10-01 |
Family
ID=27195968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3816513A Expired - Lifetime DE3816513C3 (de) | 1987-05-22 | 1988-05-14 | Verfahren zur Erzeugung von Calciumsulfat-Alphahalbhydrat aus feinteiligem Calciumsulfat und dessen Verwendung |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3816513C3 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4011366A1 (de) * | 1990-04-07 | 1991-10-10 | Rwe Energie Ag | Verfahren zur entschwefelung von rauchgasen unter gleichzeitiger bildung von calciumsulfat-alphahalbhydrat |
EP1628917A2 (de) * | 2003-03-20 | 2006-03-01 | G.B. Technologies, llc | Auf calciumsulfat basierende zusammensetzungen und herstellungsverfahren dafür |
EP2163532A1 (de) * | 2008-09-11 | 2010-03-17 | Claudius Peters Technologies GmbH | Verfahren und Anlage zur Herstellung von Hartgips |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1274488B (de) * | 1963-08-14 | 1968-08-01 | Bpb Industries Ltd | Verfahren zur Herstellung von Calciumsulfat-ª‡-Halbhydrat aus einem Nebenprodukt |
DE2049028A1 (de) * | 1969-09-26 | 1971-04-08 | Geelen, Hendrik Evert van, Papen drecht (Niederlande) | Verfahren zum Herstellen von Calciumsulfat Hemihydrat |
DE1927015B2 (de) * | 1968-05-28 | 1976-12-16 | Bpb Industries Ltd., London | Verfahren zur herstellung von alpha-hemihydrat-gips |
DE3201853A1 (de) * | 1981-04-01 | 1982-10-28 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen | Verfahren zur herstellung von geformten stuecken aus feinteiligem rauchgasgips und walzenpresse zur durchfuehrung des verfahrens |
DE3117662A1 (de) * | 1981-05-05 | 1982-11-25 | Heinrich 4350 Recklinghausen Quante | Gipsstein- und gipssandsteinherstellung |
DE3502637A1 (de) * | 1985-01-26 | 1986-09-11 | Frank W. Dr.-Ing. 6600 Saarbrücken Fink | Verfahren zum kalzinieren von stueckigem rauchgasentschwefelungsgips mittels dampfeinwirkung |
DE2658915C3 (de) * | 1976-12-24 | 1987-06-19 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen, De | |
DE3819652C2 (de) * | 1987-05-22 | 1990-07-05 | Rheinisch-Westfaelisches Elektrizitaetswerk Ag, 4300 Essen, De |
-
1988
- 1988-05-14 DE DE3816513A patent/DE3816513C3/de not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1274488B (de) * | 1963-08-14 | 1968-08-01 | Bpb Industries Ltd | Verfahren zur Herstellung von Calciumsulfat-ª‡-Halbhydrat aus einem Nebenprodukt |
DE1927015B2 (de) * | 1968-05-28 | 1976-12-16 | Bpb Industries Ltd., London | Verfahren zur herstellung von alpha-hemihydrat-gips |
DE2049028A1 (de) * | 1969-09-26 | 1971-04-08 | Geelen, Hendrik Evert van, Papen drecht (Niederlande) | Verfahren zum Herstellen von Calciumsulfat Hemihydrat |
DE2658915C3 (de) * | 1976-12-24 | 1987-06-19 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen, De | |
DE3201853A1 (de) * | 1981-04-01 | 1982-10-28 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen | Verfahren zur herstellung von geformten stuecken aus feinteiligem rauchgasgips und walzenpresse zur durchfuehrung des verfahrens |
DE3117662A1 (de) * | 1981-05-05 | 1982-11-25 | Heinrich 4350 Recklinghausen Quante | Gipsstein- und gipssandsteinherstellung |
DE3502637A1 (de) * | 1985-01-26 | 1986-09-11 | Frank W. Dr.-Ing. 6600 Saarbrücken Fink | Verfahren zum kalzinieren von stueckigem rauchgasentschwefelungsgips mittels dampfeinwirkung |
DE3819652C2 (de) * | 1987-05-22 | 1990-07-05 | Rheinisch-Westfaelisches Elektrizitaetswerk Ag, 4300 Essen, De |
Non-Patent Citations (7)
Title |
---|
Benachour,N. "Die neue Anlage zur Herstellung von Alpha-Gipsen u. Spezialgipsen in Fleurus/Algerien"In: Zement-Kalk-Gips, 1981, Nr.12, S.640-643 * |
Kruis, August u. Späth, Herbert "Forschungen und Fortschritte auf dem Gipsgebiet seit 1939". In: TIZ-Zbl., 1951, Bd.75, H.21/22, S.341-351 und H.23/24, S.395-399 * |
Rößler,M. und Odler,I. "Zusammenhänge zwischen Po-rengefüge u. Festigkeit abgebundener Gipspasten" * |
ULLMANN: Encyklopädie der technischen Chemie, 4. Aufl., Bd. 12, 1976, S. 303,304,307-310 * |
Ullmanns Encyklopädie der technischen Chemie, 3.Aufl., Bd.8, München-Berlin, Urban & Schwarzen- berg, 1957, S.114ff * |
Ullmanns Encyklopädie der technischen Chemie, 4. Aufl., Bd.12, Weinheim-New York, Verlag Chemie,1976, S.301-310 * |
Wirsching, Franz "Gips". In: Winnacker-Küchler "Chemische Technologie, 1983, Bd.3, Anorganische Technologie II, S.263-264 u. 271-272 * |
Cited By (6)
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DE4011366A1 (de) * | 1990-04-07 | 1991-10-10 | Rwe Energie Ag | Verfahren zur entschwefelung von rauchgasen unter gleichzeitiger bildung von calciumsulfat-alphahalbhydrat |
EP1628917A2 (de) * | 2003-03-20 | 2006-03-01 | G.B. Technologies, llc | Auf calciumsulfat basierende zusammensetzungen und herstellungsverfahren dafür |
EP1628917A4 (de) * | 2003-03-20 | 2009-01-07 | G B Technologies Llc | Auf calciumsulfat basierende zusammensetzungen und herstellungsverfahren dafür |
US7695561B2 (en) | 2003-03-20 | 2010-04-13 | G.B. Technologies, Llc | Alpha-type calcium sulfate hemihydrate compositions |
EP2163532A1 (de) * | 2008-09-11 | 2010-03-17 | Claudius Peters Technologies GmbH | Verfahren und Anlage zur Herstellung von Hartgips |
US9340455B2 (en) | 2008-09-11 | 2016-05-17 | Claudius Peters Projects Gmbh | Method and system for the production of hard plaster |
Also Published As
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DE3816513C2 (de) | 1991-10-31 |
DE3816513C3 (de) | 1998-10-01 |
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