GB8723624D0 - Preparing alpha-calcium sulfate hemihydrate - Google Patents
Preparing alpha-calcium sulfate hemihydrateInfo
- Publication number
- GB8723624D0 GB8723624D0 GB878723624A GB8723624A GB8723624D0 GB 8723624 D0 GB8723624 D0 GB 8723624D0 GB 878723624 A GB878723624 A GB 878723624A GB 8723624 A GB8723624 A GB 8723624A GB 8723624 D0 GB8723624 D0 GB 8723624D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- calcium sulfate
- sulfate hemihydrate
- preparing alpha
- alpha
- preparing
- 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
Classifications
-
- 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
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
- C04B11/262—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke waste gypsum other than phosphogypsum
- C04B11/264—Gypsum from the desulfurisation of flue gases
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Treating Waste Gases (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863634207 DE3634207A1 (en) | 1986-10-08 | 1986-10-08 | METHOD FOR PRODUCING ALPHA CALCIUM SULFATE SEMI-HYDRATE |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8723624D0 true GB8723624D0 (en) | 1987-11-11 |
GB2198720A GB2198720A (en) | 1988-06-22 |
GB2198720B GB2198720B (en) | 1990-05-09 |
Family
ID=6311261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8723624A Expired - Fee Related GB2198720B (en) | 1986-10-08 | 1987-10-08 | Process for preparing alpha-calcium sulfate hemihydrate |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3634207A1 (en) |
GB (1) | GB2198720B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19755885B4 (en) * | 1997-12-05 | 2007-10-31 | Vattenfall Europe Generation Ag & Co. Kg | Method and device for improved task of a demixed gypsum suspension on a filter cloth of a vacuum belt filter system |
DE19908776C2 (en) * | 1999-02-19 | 2002-05-23 | Ver Energiewerke Ag | Process and arrangement for producing high-purity alpha-calcium sulfate hemihydrate |
US6652825B2 (en) * | 2001-05-01 | 2003-11-25 | National Gypsum Properties Llc | Method of producing calcium sulfate alpha-hemihydrate |
CN108926981A (en) * | 2017-05-24 | 2018-12-04 | 沈阳铝镁设计研究院有限公司 | The desulfurization of aluminium hydroxide production process flue gas and afterheat utilizing system and method |
-
1986
- 1986-10-08 DE DE19863634207 patent/DE3634207A1/en not_active Withdrawn
-
1987
- 1987-10-08 GB GB8723624A patent/GB2198720B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3634207A1 (en) | 1988-04-21 |
GB2198720B (en) | 1990-05-09 |
GB2198720A (en) | 1988-06-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19931008 |