CA1338921C - Methode pour le traitement du sulfate de calcium alpha-semihydrate - Google Patents
Methode pour le traitement du sulfate de calcium alpha-semihydrateInfo
- Publication number
- CA1338921C CA1338921C CA 600321 CA600321A CA1338921C CA 1338921 C CA1338921 C CA 1338921C CA 600321 CA600321 CA 600321 CA 600321 A CA600321 A CA 600321A CA 1338921 C CA1338921 C CA 1338921C
- Authority
- CA
- Canada
- Prior art keywords
- calcium sulfate
- alpha hemihydrate
- sulfate alpha
- acid
- specific surface
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 25
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title description 2
- 229910052791 calcium Inorganic materials 0.000 title description 2
- 239000011575 calcium Substances 0.000 title description 2
- 238000012545 processing Methods 0.000 title description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 49
- 239000002253 acid Substances 0.000 claims abstract description 21
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- 238000011161 development Methods 0.000 claims abstract description 10
- 238000012216 screening Methods 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 241000132456 Haplocarpha Species 0.000 claims abstract description 5
- 235000013399 edible fruits Nutrition 0.000 claims description 16
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000002023 wood Substances 0.000 claims description 9
- 150000007513 acids Chemical class 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 7
- 239000003077 lignite Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 6
- YASYEJJMZJALEJ-UHFFFAOYSA-N Citric acid monohydrate Chemical compound O.OC(=O)CC(O)(C(O)=O)CC(O)=O YASYEJJMZJALEJ-UHFFFAOYSA-N 0.000 claims description 5
- 229960004106 citric acid Drugs 0.000 claims description 5
- 229960002303 citric acid monohydrate Drugs 0.000 claims 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 description 4
- 239000004021 humic acid Substances 0.000 claims description 4
- 239000003415 peat Substances 0.000 claims description 4
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 3
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 3
- 239000001630 malic acid Substances 0.000 claims description 3
- 235000011090 malic acid Nutrition 0.000 claims description 3
- 239000011975 tartaric acid Substances 0.000 claims description 3
- 235000002906 tartaric acid Nutrition 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 238000003801 milling Methods 0.000 claims 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 2
- 235000015165 citric acid Nutrition 0.000 claims 2
- 239000003546 flue gas Substances 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 2
- 150000004682 monohydrates Chemical class 0.000 claims 2
- 239000010419 fine particle Substances 0.000 claims 1
- 239000004570 mortar (masonry) Substances 0.000 abstract description 4
- 239000007921 spray Substances 0.000 abstract description 2
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 15
- 229910052602 gypsum Inorganic materials 0.000 description 8
- 239000010440 gypsum Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 239000012084 conversion product Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (4)
| 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 |
| DEP3816513.9 | 1988-05-14 | ||
| EP88120944.9 | 1988-12-15 | ||
| EP88120944A EP0342272B1 (fr) | 1987-05-22 | 1988-12-15 | Procédé de traitement de sulfate de calcium demi-hydraté du type alpha |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1338921C true CA1338921C (fr) | 1997-02-25 |
Family
ID=25868102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 600321 Expired - Fee Related CA1338921C (fr) | 1988-05-14 | 1989-05-15 | Methode pour le traitement du sulfate de calcium alpha-semihydrate |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH03500877A (fr) |
| AT (1) | ATE62648T1 (fr) |
| CA (1) | CA1338921C (fr) |
| DK (1) | DK9090A (fr) |
| FI (1) | FI93943C (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6964704B2 (en) * | 2003-03-20 | 2005-11-15 | G.B. Technologies, Llc | Calcium sulphate-based composition and methods of making same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2457970C3 (de) * | 1973-12-11 | 1978-03-09 | Union Carbide Corp., New York, N.Y. (V.St.A.) | Verfahren zur Herstellung von Kohlenstoff-Fasern |
| JPS51112798A (en) * | 1975-03-31 | 1976-10-05 | Babcock Hitachi Kk | Process for granulation of by-product gypsum from exhausted gas desulf urizer |
| US4065320A (en) * | 1975-05-13 | 1977-12-27 | Allis-Chalmers Corporation | System for handling high sulfur materials |
| JPS5614616A (en) * | 1979-07-16 | 1981-02-12 | Roozan Eng Corp | Self seal type flange device |
| JPS5618551A (en) * | 1979-07-26 | 1981-02-21 | Morinaga & Co Ltd | Preparation of multilayered ice cream |
| JPS573622A (en) * | 1980-06-10 | 1982-01-09 | Tokyo Optical | Apparatus for detecting operation distance in ophthalmology |
| JPS5721501A (en) * | 1980-07-14 | 1982-02-04 | Reonitsuto Kk | Shorts and production thereof |
| JPS5814385A (ja) * | 1981-07-20 | 1983-01-27 | Toshiba Corp | デジタルデイスクプレ−ヤ装置 |
-
1988
- 1988-12-15 AT AT88120944T patent/ATE62648T1/de not_active IP Right Cessation
-
1989
- 1989-05-10 JP JP50545389A patent/JPH03500877A/ja active Pending
- 1989-05-15 CA CA 600321 patent/CA1338921C/fr not_active Expired - Fee Related
-
1990
- 1990-01-10 FI FI900126A patent/FI93943C/fi not_active IP Right Cessation
- 1990-01-12 DK DK009090A patent/DK9090A/da unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK9090A (da) | 1990-03-12 |
| FI900126A (fi) | 1990-01-10 |
| ATE62648T1 (de) | 1991-05-15 |
| FI93943C (fi) | 1995-06-26 |
| JPH03500877A (ja) | 1991-02-28 |
| FI900126A0 (fi) | 1990-01-10 |
| DK9090D0 (da) | 1990-01-12 |
| FI93943B (fi) | 1995-03-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |