DE3615739C2 - - Google Patents
Info
- Publication number
- DE3615739C2 DE3615739C2 DE3615739A DE3615739A DE3615739C2 DE 3615739 C2 DE3615739 C2 DE 3615739C2 DE 3615739 A DE3615739 A DE 3615739A DE 3615739 A DE3615739 A DE 3615739A DE 3615739 C2 DE3615739 C2 DE 3615739C2
- Authority
- DE
- Germany
- Prior art keywords
- gypsum
- reactor
- steam
- tube
- suspension
- 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 - Lifetime
Links
- 239000010440 gypsum Substances 0.000 claims abstract description 56
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 56
- 239000000725 suspension Substances 0.000 claims abstract description 40
- 238000006243 chemical reaction Methods 0.000 claims abstract description 34
- 238000010924 continuous production Methods 0.000 claims abstract description 3
- 239000012084 conversion product Substances 0.000 claims abstract 3
- 238000000034 method Methods 0.000 claims description 17
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 239000000047 product Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000012065 filter cake Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000010793 Steam injection (oil industry) Methods 0.000 claims 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 239000012634 fragment Substances 0.000 claims 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000002440 industrial waste Substances 0.000 abstract description 2
- 235000011132 calcium sulphate Nutrition 0.000 abstract 1
- 239000001175 calcium sulphate Substances 0.000 abstract 1
- 230000001174 ascending effect Effects 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 150000004683 dihydrates Chemical class 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 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
- 239000000706 filtrate Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000011505 plaster Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000001464 adherent effect Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000010335 hydrothermal treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 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
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)
- Processing Of Solid Wastes (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863615739 DE3615739A1 (de) | 1986-05-09 | 1986-05-09 | Kontinuierliches verfahren und vorrichtung zur gewinnung von industriell verwertbarem gips aus industrieabfallgips |
| AT87106061T ATE57902T1 (de) | 1986-05-09 | 1987-04-25 | Kontinuierliches verfahren und vorrichtung zur gewinnung von industriell verwertbarem gips aus industrieabfallgips. |
| DE8787106061T DE3765832D1 (de) | 1986-05-09 | 1987-04-25 | Kontinuierliches verfahren und vorrichtung zur gewinnung von industriell verwertbarem gips aus industrieabfallgips. |
| EP87106061A EP0244722B1 (de) | 1986-05-09 | 1987-04-25 | Kontinuierliches Verfahren und Vorrichtung zur Gewinnung von industriell verwertbarem Gips aus Industrieabfallgips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863615739 DE3615739A1 (de) | 1986-05-09 | 1986-05-09 | Kontinuierliches verfahren und vorrichtung zur gewinnung von industriell verwertbarem gips aus industrieabfallgips |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3615739A1 DE3615739A1 (de) | 1987-11-12 |
| DE3615739C2 true DE3615739C2 (en, 2012) | 1990-03-15 |
Family
ID=6300527
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19863615739 Granted DE3615739A1 (de) | 1986-05-09 | 1986-05-09 | Kontinuierliches verfahren und vorrichtung zur gewinnung von industriell verwertbarem gips aus industrieabfallgips |
| DE8787106061T Expired - Lifetime DE3765832D1 (de) | 1986-05-09 | 1987-04-25 | Kontinuierliches verfahren und vorrichtung zur gewinnung von industriell verwertbarem gips aus industrieabfallgips. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8787106061T Expired - Lifetime DE3765832D1 (de) | 1986-05-09 | 1987-04-25 | Kontinuierliches verfahren und vorrichtung zur gewinnung von industriell verwertbarem gips aus industrieabfallgips. |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0244722B1 (en, 2012) |
| AT (1) | ATE57902T1 (en, 2012) |
| DE (2) | DE3615739A1 (en, 2012) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990011256A1 (en) * | 1989-03-16 | 1990-10-04 | The United States Gypsum Company | Process and apparatus for producing calcium sulfate microfibers |
| US6652825B2 (en) * | 2001-05-01 | 2003-11-25 | National Gypsum Properties Llc | Method of producing calcium sulfate alpha-hemihydrate |
| CN100425560C (zh) * | 2006-09-14 | 2008-10-15 | 山西北方石膏工业有限公司 | α型半水石膏的连续式生产方法及装置 |
| CN103011642B (zh) * | 2012-12-19 | 2014-12-03 | 武汉理工大学 | 一种利用电石泥渣改性磷石膏用于常压水热法制备高强α型半水石膏的方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1051849A (en, 2012) * | 1963-12-03 | |||
| JPS56145116A (en) * | 1980-04-14 | 1981-11-11 | Idemitsu Kosan Co Ltd | Continuous preparation of light gypsum |
| ZA817558B (en) * | 1980-11-10 | 1983-02-23 | Bpb Industries Plc | Improvements in calcining calcium sulphate dihydrate |
| EP0085382A1 (de) * | 1982-02-01 | 1983-08-10 | Quante, Heinrich | Vorrichtung zur Herstellung von Alpha-Calciumsulfat-Halbhydrat |
| 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 |
-
1986
- 1986-05-09 DE DE19863615739 patent/DE3615739A1/de active Granted
-
1987
- 1987-04-25 DE DE8787106061T patent/DE3765832D1/de not_active Expired - Lifetime
- 1987-04-25 EP EP87106061A patent/EP0244722B1/de not_active Expired - Lifetime
- 1987-04-25 AT AT87106061T patent/ATE57902T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0244722B1 (de) | 1990-10-31 |
| DE3615739A1 (de) | 1987-11-12 |
| ATE57902T1 (de) | 1990-11-15 |
| DE3765832D1 (de) | 1990-12-06 |
| EP0244722A2 (de) | 1987-11-11 |
| EP0244722A3 (en) | 1988-09-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8127 | New person/name/address of the applicant |
Owner name: BIOCHEMIE LADENBURG GMBH, 6802 LADENBURG, DE |
|
| 8127 | New person/name/address of the applicant |
Owner name: JUNGBUNZLAUER LADENBURG GMBH, 6802 LADENBURG, DE |
|
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8365 | Fully valid after opposition proceedings | ||
| 8339 | Ceased/non-payment of the annual fee |