NO124990B - - Google Patents
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- Publication number
- NO124990B NO124990B NO212269A NO212269A NO124990B NO 124990 B NO124990 B NO 124990B NO 212269 A NO212269 A NO 212269A NO 212269 A NO212269 A NO 212269A NO 124990 B NO124990 B NO 124990B
- Authority
- NO
- Norway
- Prior art keywords
- gypsum
- consistency
- hemihydrate
- lumps
- found
- Prior art date
Links
- 229910052602 gypsum Inorganic materials 0.000 claims description 34
- 239000010440 gypsum Substances 0.000 claims description 34
- 239000013078 crystal Substances 0.000 claims description 26
- 239000003607 modifier Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 11
- 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 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000011505 plaster Substances 0.000 description 12
- 238000010304 firing Methods 0.000 description 11
- 239000004570 mortar (masonry) Substances 0.000 description 8
- 239000002002 slurry Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 3
- 239000010951 brass Substances 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
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 238000007542 hardness measurement Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000001509 sodium citrate Substances 0.000 description 3
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005029 sieve analysis Methods 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- WXUAQHNMJWJLTG-VKHMYHEASA-N (S)-methylsuccinic acid Chemical compound OC(=O)[C@@H](C)CC(O)=O WXUAQHNMJWJLTG-VKHMYHEASA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 241001486234 Sciota Species 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 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
- C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2549568A GB1262083A (en) | 1968-05-28 | 1968-05-28 | alpha-CALCIUM SULPHATE HEMIHYDRATE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO124990B true NO124990B (en, 2012) | 1972-07-03 |
Family
ID=10228621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO212269A NO124990B (en, 2012) | 1968-05-28 | 1969-05-23 |
Country Status (10)
| Country | Link |
|---|---|
| BE (1) | BE733737A (en, 2012) |
| DE (1) | DE1927015B2 (en, 2012) |
| DK (1) | DK131772C (en, 2012) |
| FR (1) | FR1599625A (en, 2012) |
| GB (1) | GB1262083A (en, 2012) |
| IE (1) | IE32810B1 (en, 2012) |
| LU (1) | LU58733A1 (en, 2012) |
| NL (1) | NL6908130A (en, 2012) |
| NO (1) | NO124990B (en, 2012) |
| SE (1) | SE366531B (en, 2012) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1547422A (en) * | 1975-03-31 | 1979-06-20 | Japan Government | Manufacture of gypsum |
| DE3222865C2 (de) * | 1981-07-10 | 1992-10-22 | Steag Ag, 4300 Essen | Verfahren zum Granulieren von bei chemischen Prozessen anfallendem Gips und Verwendung einer Kompaktierungseinrichtung zum Granulieren von Gips nach dem Verfahren |
| DE3502637A1 (de) * | 1985-01-26 | 1986-09-11 | Frank W. Dr.-Ing. 6600 Saarbrücken Fink | Verfahren zum kalzinieren von stueckigem rauchgasentschwefelungsgips mittels dampfeinwirkung |
| DE3711367A1 (de) * | 1987-04-04 | 1988-10-13 | Rwk Rhein Westfael Kalkwerke | Verfahren zur herstellung von calciumsulfat-halbhydrat |
| DE3819652C3 (de) * | 1987-05-22 | 1996-08-01 | Pro Mineral Ges | Verfahren zur Erzeugung von als Baustoff geeignetem Calciumsulfat-Alphahalbhydrat aus feuchtem, feinteiligem Rauchgasentschwefelungsgips und seine Verwendung |
| DE3816513C3 (de) * | 1987-05-22 | 1998-10-01 | Pro Mineral Ges | Verfahren zur Erzeugung von Calciumsulfat-Alphahalbhydrat aus feinteiligem Calciumsulfat und dessen Verwendung |
| DE4217978A1 (de) * | 1992-05-30 | 1993-12-02 | Heidelberger Zement Ag | Verfahren zur Herstellung von ALPHA-Halbhydrat aus Calciumsulfat-Dihydrat in einem Reaktor |
| RU2212384C1 (ru) * | 2002-03-06 | 2003-09-20 | Нижегородский государственный архитектурно-строительный университет | Способ получения высокопрочного гипсового вяжущего |
| RU2400444C1 (ru) * | 2008-12-31 | 2010-09-27 | Юрий Георгиевич Мещеряков | Способ производства гипсовых строительных материалов |
| TR201821015T4 (tr) * | 2012-07-12 | 2019-01-21 | Knauf Gips Kg | Kalsi̇ne edi̇lmi̇ş alçitaşi üretmek i̇çi̇n bi̇r i̇şlem. |
| CN106044826A (zh) * | 2016-05-26 | 2016-10-26 | 东南大学 | 一种用于生产α型高强石膏的转晶剂 |
-
1968
- 1968-05-28 GB GB2549568A patent/GB1262083A/en not_active Expired
- 1968-12-30 FR FR1599625D patent/FR1599625A/fr not_active Expired
-
1969
- 1969-05-22 IE IE70469A patent/IE32810B1/xx unknown
- 1969-05-23 NO NO212269A patent/NO124990B/no unknown
- 1969-05-27 SE SE741869A patent/SE366531B/xx unknown
- 1969-05-28 DK DK288669A patent/DK131772C/da active
- 1969-05-28 LU LU58733D patent/LU58733A1/xx unknown
- 1969-05-28 DE DE19691927015 patent/DE1927015B2/de not_active Withdrawn
- 1969-05-28 BE BE733737D patent/BE733737A/xx unknown
- 1969-05-28 NL NL6908130A patent/NL6908130A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| LU58733A1 (en, 2012) | 1969-09-12 |
| DK131772B (da) | 1975-09-01 |
| GB1262083A (en) | 1972-02-02 |
| DK131772C (da) | 1976-02-02 |
| IE32810B1 (en) | 1973-12-12 |
| DE1927015A1 (de) | 1969-12-04 |
| NL6908130A (en, 2012) | 1969-12-02 |
| IE32810L (en) | 1969-11-28 |
| BE733737A (en, 2012) | 1969-11-03 |
| SE366531B (en, 2012) | 1974-04-29 |
| DE1927015B2 (de) | 1976-12-16 |
| FR1599625A (en, 2012) | 1970-07-15 |
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