DE2240926B2 - Verfahren zur Herstellung von Formkörpern - Google Patents
Verfahren zur Herstellung von FormkörpernInfo
- Publication number
- DE2240926B2 DE2240926B2 DE2240926A DE2240926A DE2240926B2 DE 2240926 B2 DE2240926 B2 DE 2240926B2 DE 2240926 A DE2240926 A DE 2240926A DE 2240926 A DE2240926 A DE 2240926A DE 2240926 B2 DE2240926 B2 DE 2240926B2
- Authority
- DE
- Germany
- Prior art keywords
- water
- mixture
- gypsum
- production
- anhydrite
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000000465 moulding Methods 0.000 title claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 229910052602 gypsum Inorganic materials 0.000 claims description 21
- 239000010440 gypsum Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 17
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- 229910052925 anhydrite Inorganic materials 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- 230000036571 hydration Effects 0.000 claims description 4
- 238000006703 hydration reaction Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 239000002367 phosphate rock Substances 0.000 claims 1
- 239000004566 building material Substances 0.000 description 8
- 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 6
- 239000011507 gypsum plaster Substances 0.000 description 6
- 238000005056 compaction Methods 0.000 description 4
- 239000011505 plaster Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000006253 efflorescence Methods 0.000 description 2
- 206010037844 rash Diseases 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002699 waste material 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
- C04B28/16—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 anhydrite, e.g. Keene's cement
-
- 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)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2240926A DE2240926B2 (de) | 1972-08-19 | 1972-08-19 | Verfahren zur Herstellung von Formkörpern |
| AT603573A AT323042B (de) | 1972-08-19 | 1973-07-09 | Mit wasser abbindende baustoffmischung |
| FR7329839A FR2196299A1 (en) | 1972-08-19 | 1973-08-16 | Hydraulic plaster mix - contg untreated chemical gypsum whose hydration water causes setting |
| BE134651A BE803688A (fr) | 1972-08-19 | 1973-08-16 | Melange de materiaux faisant prise a l'eau |
| NL7311354A NL7311354A (OSRAM) | 1972-08-19 | 1973-08-17 | |
| SE7311248A SE386432B (sv) | 1972-08-19 | 1973-08-17 | Med vatten hardnande byggnadsmaterialblandning, spec. avsett for framstellning av formkroppar, bestaende av gips och ett tillsatsmaterial, innehallande heftvatten, d.v.s. adsorberat ytvatten |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2240926A DE2240926B2 (de) | 1972-08-19 | 1972-08-19 | Verfahren zur Herstellung von Formkörpern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2240926A1 DE2240926A1 (de) | 1974-02-28 |
| DE2240926B2 true DE2240926B2 (de) | 1980-10-23 |
Family
ID=5854046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2240926A Ceased DE2240926B2 (de) | 1972-08-19 | 1972-08-19 | Verfahren zur Herstellung von Formkörpern |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT323042B (OSRAM) |
| BE (1) | BE803688A (OSRAM) |
| DE (1) | DE2240926B2 (OSRAM) |
| FR (1) | FR2196299A1 (OSRAM) |
| NL (1) | NL7311354A (OSRAM) |
| SE (1) | SE386432B (OSRAM) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2833382B2 (de) * | 1978-07-29 | 1980-10-23 | Saarbergwerke Ag, 6600 Saarbruecken | Verfahren zur Verwertung des in Rauchgasentschwefelungsanlagen, die auf Kalkbasis betrieben werden, anfallenden Gipses |
| DE2919311B1 (de) * | 1979-05-14 | 1980-09-18 | Gert Prof Dr-Ing Habil Kossatz | Verfahren zum Herstellen von Gipsbauteilen,insbesondere Gipsplatten |
| FR2480274A1 (fr) * | 1980-04-11 | 1981-10-16 | Ugine Kuhlmann | Liants a base de gypses residuaires et d'anhydrite synthetique |
| SE450571B (sv) * | 1983-05-06 | 1987-07-06 | Boliden Ab | Spackelmassa |
-
1972
- 1972-08-19 DE DE2240926A patent/DE2240926B2/de not_active Ceased
-
1973
- 1973-07-09 AT AT603573A patent/AT323042B/de not_active IP Right Cessation
- 1973-08-16 BE BE134651A patent/BE803688A/xx unknown
- 1973-08-16 FR FR7329839A patent/FR2196299A1/fr active Granted
- 1973-08-17 SE SE7311248A patent/SE386432B/xx unknown
- 1973-08-17 NL NL7311354A patent/NL7311354A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NL7311354A (OSRAM) | 1974-02-21 |
| AT323042B (de) | 1975-06-25 |
| DE2240926A1 (de) | 1974-02-28 |
| FR2196299A1 (en) | 1974-03-15 |
| FR2196299B1 (OSRAM) | 1977-02-25 |
| SE386432B (sv) | 1976-08-09 |
| BE803688A (fr) | 1973-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OGA | New person/name/address of the applicant | ||
| 8263 | Opposition against grant of a patent | ||
| 8235 | Patent refused |