GB1536097A - Granular gypsum and process for production of same - Google Patents
Granular gypsum and process for production of sameInfo
- Publication number
- GB1536097A GB1536097A GB2472477A GB2472477A GB1536097A GB 1536097 A GB1536097 A GB 1536097A GB 2472477 A GB2472477 A GB 2472477A GB 2472477 A GB2472477 A GB 2472477A GB 1536097 A GB1536097 A GB 1536097A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gypsum
- fibrous
- granular
- production
- same
- 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
Links
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
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/36—Inorganic materials not provided for in groups C04B14/022 and C04B14/04 - C04B14/34
- C04B14/365—Gypsum
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Inorganic Fibers (AREA)
Abstract
1536097 Granular fibrous gypsum IDEMITSU KOSAN CO Ltd 14 June 1977 [29 Nov 1976] 24724/77 Heading C1A . Granular gypsum formed of fibrous α-type hemihydrate or anhydrite gypsum, having bulk density 0À01-0À8 g./cm.<SP>3</SP>, is obtained by subjecting #-type hemihydrate gypsum or dihydrate gypsum or a mixture thereof to hydrothermal reaction in acid medium to form a fibrous gypsum while agitating until the fibres intertwine to form granules. Drying at 50-80‹ C. for 1-3 hours gives α-hemihydrate product; calcining at 400-1000‹ C. for 0À5-3 hours gives anhydrite product.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51142212A JPS5817132B2 (en) | 1976-11-29 | 1976-11-29 | Spherical settsukou and its manufacturing method |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1536097A true GB1536097A (en) | 1978-12-20 |
Family
ID=15309996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2472477A Expired GB1536097A (en) | 1976-11-29 | 1977-06-14 | Granular gypsum and process for production of same |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5817132B2 (en) |
CA (1) | CA1117271A (en) |
DE (1) | DE2728213A1 (en) |
FR (1) | FR2372120A1 (en) |
GB (1) | GB1536097A (en) |
IT (1) | IT1115860B (en) |
SE (1) | SE7706274L (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114014620A (en) * | 2021-10-29 | 2022-02-08 | 河北睿索固废工程技术研究院有限公司 | Lightweight aggregate and preparation method and application thereof |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5556060A (en) * | 1978-10-14 | 1980-04-24 | Idemitsu Kosan Co | Refractory material |
JPS55152815U (en) * | 1979-04-18 | 1980-11-04 | ||
JPS55144416A (en) * | 1979-05-01 | 1980-11-11 | Idemitsu Kosan Co Ltd | Manufacture of light weight spherical gypsum |
JPS56145116A (en) * | 1980-04-14 | 1981-11-11 | Idemitsu Kosan Co Ltd | Continuous preparation of light gypsum |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5812235B2 (en) * | 1975-09-29 | 1983-03-07 | オノダセメント カブシキガイシヤ | Setsukou Shinjiyouketsuyouseni no Seizouhouhou |
-
1976
- 1976-11-29 JP JP51142212A patent/JPS5817132B2/en not_active Expired
-
1977
- 1977-05-27 SE SE7706274A patent/SE7706274L/en unknown
- 1977-06-10 FR FR7717906A patent/FR2372120A1/en active Granted
- 1977-06-10 CA CA000280321A patent/CA1117271A/en not_active Expired
- 1977-06-13 IT IT4979277A patent/IT1115860B/en active
- 1977-06-14 GB GB2472477A patent/GB1536097A/en not_active Expired
- 1977-06-23 DE DE19772728213 patent/DE2728213A1/en not_active Ceased
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114014620A (en) * | 2021-10-29 | 2022-02-08 | 河北睿索固废工程技术研究院有限公司 | Lightweight aggregate and preparation method and application thereof |
CN114014620B (en) * | 2021-10-29 | 2022-12-06 | 北京建筑材料科学研究总院有限公司 | Lightweight aggregate and preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS5817132B2 (en) | 1983-04-05 |
FR2372120B1 (en) | 1981-12-24 |
IT1115860B (en) | 1986-02-10 |
DE2728213A1 (en) | 1978-06-01 |
SE7706274L (en) | 1978-05-30 |
JPS5366895A (en) | 1978-06-14 |
CA1117271A (en) | 1982-02-02 |
FR2372120A1 (en) | 1978-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |